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What is the gravity on Jupiter compared to Earth? | How Things Fly

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Every planet in the solar system has a different gravitational pull, which is why your weight is different on different planets. Jupiter is a massive planet, so it has a massive gravitational pull. Jupiter's gravity is 2.4 times that of earth - so if you weighed 100 kg (220 lbs) here, you would weigh 240 kg (529 lbs) there.

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cool water

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Jupiter's iconic storm, the Great Red Spot, may have just clued scientists in on an enthralling secret: The giant planet might have water.

Jupiter is a special world. It's the largest planet in our solar system and likely was the first body to funnel the sun's leftover elements to form, according to NASA. So, it's no surprise, then, that researchers once thought Jupiter had an identical composition to the sun.

But subsequent studies of the planet over the past few decades have revealed a more complex Jupiter. The hints of water in Jupiter's Great Red Spot come from a recent study by Gordon Bjoraker, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Maryland. [ Jupiter's Great Red Spot: More Amazing Photos]

"The moons that orbit Jupiter are mostly water ice, so the whole neighborhood has plenty of water," Bjoraker said in a NASA statement Wednesday (Aug. 29). "Why wouldn't the planet - which is this huge gravity well, where everything falls into it - be water rich, too?"

Bjoraker and colleagues collected radiation data on Jupiter using two special telescopes on the Mauna Kea summit in Hawaii: an instrument at the NASA Infrared Telescope Facility, and the "most sensitive infrared telescope on Earth" at the Keck Observatory, according to the space agency.

To supplement those observations, the team used data from NASA's Juno spacecraft, which can probe deeper into Jupiter's clouds than any mission before. Juno orbits Jupiter once every 53 days.

(Image: © Gerald Eichstädt/NASA/SwRI/MSSS)

With ground-based instruments on Earth, the team watched thermal radiation leak from the depths of the Great Red Spot. They found that above the clouds in this turbulent region's abyss, chemical signatures of water existed. Models, both theoretical and computer-generated, support their findings of "abundant" water on Jupiter.

The researchers found that the deepest cloud layer with water signatures inside the Great Red Spot is at 5 bars, or five times the atmospheric pressure on Earth, where the temperatures reach water's freezing point.

This depth, in addition to the levels of carbon monoxide researchers detected on Jupiter, appears to confirm that Jupiter is rich in oxygen and, because its abundance of hydrogen is already well-known, has the ingredients for water.

(Image: © Gordon Bjoraker/NASA's Goddard Space Flight Center)

But how much water could there be on Jupiter? More observations are needed to find out, researchers said.

"Jupiter's water abundance will tell us a lot about how the giant planet formed, but only if we can figure out how much water there is in the entire planet," Steven Levin, a Juno project scientist at NASA's Jet Propulsion Laboratory in Pasadena, California, said in the statement.

If future observations by Juno confirm the existence of water on Jupiter and map it in detail, that knowledge could potentially be used to help determine if there's water on other gas-giant planets.

"If it works, then maybe we can apply it elsewhere, like Saturn, Uranus or Neptune, where we don't have a Juno," Amy Simon, a planetary atmospheres expert at NASA Goddard, said in the statement.

The paper detailing the findings was published Aug. 17 in The Astronomical Journal.
Follow Doris Elin Salazar on Twitter @salazar_elin. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.

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Is There Water on Jupiter? Great Red Spot May Hold the Answer

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Jupiter's iconic storm, the Great Red Spot, may have just clued scientists in on an enthralling secret: The giant planet might have water. Jupiter is a special world. It's the largest planet in our solar system and likely was the first body to funnel the sun's leftover elements to form, according to NASA.

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Rarely, the spot fades entirely. Its color may be due to small amounts of sulfur and phosphorus in the ammonia crystals. The atmosphere of Jupiter is composed of about 86 percent hydrogen, 14 percent helium, and tiny amounts of methane, ammonia, phosphine, water, acetylene, ethane, germanium, and carbon monoxide.

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A salty ocean is lurking beneath the surface of Jupiter's largest moon, Ganymede, scientists using the Hubble Space Telescope have found.

The ocean on Ganymede - which is buried under a thick crust of ice - could actually harbor more water than all of Earth's surface water combined, according to NASA officials. Scientists think the ocean is about 60 miles (100 kilometers) thick, 10 times the depth of Earth's oceans, NASA added. The new Hubble Space Telescope finding could also help scientists learn more about the plethora of potentially watery worlds that exist in the solar system and beyond.

"The solar system is now looking like a pretty soggy place," Jim Green, NASA's director of planetary science, said during a news teleconference today (March 12). Scientists are particularly interested in learning more about watery worlds because life as we know it depends on water to thrive. [ See amazing photos of Ganymede]

Scientists have also found that Ganymede's surface shows signs of flooding. Young parts of Ganymede seen in a video map may have been formed by water bubbling up from the interior of the moon through faults or cryo-volcanos at some point in the moon's history, Green said.

Scientists have long suspected that there was an ocean of liquid water on Ganymede - the largest moon in the solar system, at about 3,273 miles (5,268 kilometers) across - has an ocean of liquid water beneath its surface. The Galileo probe measured Ganymede's magnetic field in 2002, providing some data supporting the theory that the moon has an ocean. The newly announced evidence from the Hubble telescope is the most convincing data supporting the subsurface ocean theory yet, according to NASA.

Scientists used Hubble to monitor Ganymede's auroras, ribbons of light at the poles created by the moon's magnetic field. The moon's auroras are also affected by Jupiter's magnetic field because of the moon's proximity to the huge planet.

When Jupiter's magnetic field changes, so does Ganymede's. Researchers were able to watch the two auroras "rock" back and forth with Hubble. Ganymede's aurora didn't rock as much as expected, so by monitoring that motion, the researchers concluded that a subsurface ocean was likely responsible for dampening the change in Ganymede's aurora created by Jupiter.

"I was always brainstorming how we could use a telescope in other ways," Joachim Saur, geophysicist and team leader of the new finding, said in a statement. "Is there a way you could use a telescope to look inside a planetary body? Then I thought, the aurorae! Because aurorae are controlled by the magnetic field, if you observe the aurorae in an appropriate way, you learn something about the magnetic field. If you know the magnetic field, then you know something about the moon's interior."

Hunting for auroras on other worlds could potentially help identify water-rich alien planets in the future, Heidi Hammel, executive vice president of the Association of Universities for Research in Astronomy, said during the teleconference. Scientists might be able to search for rocking auroras on exoplanets that could potentially harbor water using the lessons learned from the Hubble observations of Ganymede.

(Image: © NASA, ESA, and A. Feild (STScI))

Astronomers might be able to detect oceans on planets near magnetically active stars using similar methods to those used by Saur and his research team, Hammel added.

"By monitoring auroral activity on exoplanets, we may be able to infer the presence of water on or within an exoplanet," Hammel said. "Now, it's not going to be easy - it's not as easy as Ganymede and Jupiter, and that wasn't easy. It may require a much larger telescope than Hubble, it may require some future space telescope, but nevertheless, it's a tool now that we didn't have prior to this work that Joachim and his team have done."

Jupiter's moons are popular targets for future space missions. The European Space Agency is planning to send a probe called JUICE - short for JUpiter ICy moons Explorer - to Jupiter and its moons in 2022. JUICE is expected to check out Europa, Callisto and Ganymede during its mission. NASA also has its eye on the Jupiter system. Officials are hoping to send a probe to Europa by the mid-2020s.

NASA will also celebrate the Hubble telescope's 25th anniversary this year.

"This discovery marks a significant milestone, highlighting what only Hubble can accomplish," John Grunsfeld, assistant administrator of NASA's Science Mission, said in the same statement. "In its 25 years in orbit, Hubble has made many scientific discoveries in our own solar system. A deep ocean under the icy crust of Ganymede opens up further exciting possibilities for life beyond Earth."

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Jupiter's Moon Ganymede Has a Salty Ocean with More Water than Earth

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A salty ocean is lurking beneath the surface of Jupiter's largest moon, Ganymede, scientists using the Hubble Space Telescope have found. The ocean on Ganymede - which is buried under a thick crust of ice - could actually harbor more water than all of Earth's surface water combined, according to NASA officials.

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Wild flowers , plants and fungi are the life support for all our wildlife and their colour and character light up our landscapes. But without our help , this priceless ..

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Wild flowers , plants and fungi are the life support for all our wildlife and their colour and character light up our landscapes. But without our help , this priceless ..

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On December 7, 1995, NASA's historic Galileo probe plunged into Jupiter's atmosphere at 106,000 mph, relaying 58 minutes of data back to Earth before it was pulverized in the depths of the enormous planet's crushing interior.

In terms of atmospheric composition, some of what the probe measured met expectations. But there were also some surprises, one of the most baffling being that the region Galileo entered was drier than astrophysicists had anticipated. Jupiter's 79 moons are mostly made of ice, so it had been assumed that the planet's atmosphere would contain a considerable amount of water. If so, the 750-pound probe didn't find it that day.

Almost a quarter of a century later, experts are still debating how much water might be swirling within Jupiter's howling atmosphere. Recent research by a national team of scientists - including Clemson University astrophysicist Máté Ádámkovics - indicates that the answer is ... a lot.

"By formulating and analyzing data obtained using ground-based telescopes, our team has detected the chemical signatures of water deep beneath the surface of Jupiter's Great Red Spot," said Ádámkovics, an assistant professor in the College of Science's department of physics and astronomy. "Jupiter is a gas giant that contains more than twice the mass of all of our other planets combined. And though 99 percent of Jupiter's atmosphere is composed of hydrogen and helium, even solar fractions of water on a planet this massive would add up to a lot of water - many times more water than we have here on Earth."

Ádámkovics' collaborative research was recently featured in Astronomical Journal, one of the world's premier journals for astronomy. He was part of a team that included Gordon L. Bjoraker of NASA; Michael H. Wong and Imke de Pater of the University of California, Berkeley; Tilak Hewagama of the University of Maryland; and Glenn Orton of the California Institute of Technology. The paper was titled "The Gas Composition and Deep Cloud Structure of Jupiter's Great Red Spot."

The team focused its sights on the Great Red Spot, a hurricane-like storm more than twice as wide as Earth that has been blustering in Jupiter's skies for more than 150 years. The team searched for water by using radiation data collected by two instruments on ground-based telescopes: iSHELL on the NASA Infrared Telescope Facility and the Near Infrared Spectograph on the Keck 2 telescope, both of which are located on the remote summit of Maunakea in Hawaii. iShell is a high-resolution instrument that can detect a wide range of gases across the color spectrum. Keck 2 is the most sensitive infrared telescope on Earth.

The team found evidence of three cloud layers in the Great Red Spot, with the deepest cloud layer at 5-7 bars. A bar is a metric unit of pressure that approximates the average atmospheric pressure on Earth at sea level. Altitude on Jupiter is measured in bars because the planet doesn't have an Earth-like surface from which to measure elevation. At about 5-7 bars - or about 100 miles below the cloud tops - is where the scientists believed the temperature would reach the freezing point for water. The deepest of the three cloud layers identified by the team was believed to be composed of frozen water.

"The discovery of water on Jupiter using our technique is important in many ways. Our current study focused on the red spot, but future projects will be able to estimate how much water exists on the entire planet," Ádámkovics said. "Water may play a critical role in Jupiter's dynamic weather patterns, so this will help advance our understanding of what makes the planet's atmosphere so turbulent. And, finally, where there's the potential for liquid water, the possibility of life cannot be completely ruled out. So, though it appears very unlikely, life on Jupiter is not beyond the range of our imaginations."

Clemson's main role in the research was to use specially designed software to transform raw data into science-quality data that could be more easily analyzed and also shared with scientists at Clemson and around the world. This type of work was performed this past spring by Rachel Conway, an undergraduate student in physics and astronomy who became involved in the project via Clemson's Creative Inquiry program.

"When I initially began, I started by running the data through. The code was already written and I was just plugging in new data sets and generating output files," said Conway, a native of Watertown, Connecticut. "But then I began fixing errors and learning more about what was actually going on. I'm interested in everything and anything that's out there, so learning more about what we don't know is always cool."

NASA's Juno spacecraft, which arrived at Jupiter in 2016 and will be orbiting and studying the planet until at least 2021, has revealed many secrets about a planet so large it almost became a star. Juno is also searching for water by using its own high-tech infrared spectrometer. If Juno's observations match ground-based observations, then the latter can be applied not just to the Great Red Spot, but to all of Jupiter. The technique als0 can be used to study Saturn, Uranus and Neptune, our solar system's three other gas planets.

"Starting this fall, the next project will be to get a lot more data of this kind to measure not just one spot on Jupiter. but all over Jupiter," said Ádámkovics, whose research focus is on the physics and chemistry of planet formation, planetary atmospheres and circumstellar disks. "To do this, we'll be collecting many gigabytes of data with the new instrument, iSHELL, that works at a very high resolution and will complement Juno's observations. The new part of this next project will be to write the automated software for all this data so that we can get a full picture of the planet's water abundance."

This time around, Ádámkovics and Conway will have some new members on their Clemson team. Ádámkovics will add six to eight Creative Inquiry students to assist with analyzing the raw data.

"In addition to physics students, we also have students who are computer scientists and who specialize in other fields," Ádámkovics said. "We expect that these cross-disciplinary skill sets will complement each other by enhancing our effectiveness and efficiency. Jupiter still has many mysteries. But we've never been more ready or more able to solve them."

Publication: G. L. Bjoraker, et al., "The Gas Composition and Deep Cloud Structure of Jupiter's Great Red Spot," AJ, 2018; doi:10.3847/1538-3881/aad186

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Jupiter Might Have Many Times More Water Than Found on Earth

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On December 7, 1995, NASA's historic Galileo probe plunged into Jupiter's atmosphere at 106,000 mph, relaying 58 minutes of data back to Earth before it was pulverized in the depths of the enormous planet's crushing interior. In terms of atmospheric composition, some of what the probe measured met expectations.

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Pronunciation
[1]

Jupiter

Adjectives

Jovian

Symbol

Epoch J2000

Aphelion

816.363 Gm (5.4570 AU)

Perihelion

740.595 Gm (4.9506 AU)

Eccentricity

0.0489

398.88 d

Inclination

Known satellites

95 (as of 2023)[7]

69,911 km (43,441 mi)[a]
10.973 of Earth's

71,492 km (44,423 mi)11.209 0.10045 [a]
R🜨 ( of Earth's) R☉ (
of Sun's)

66,854 km (41,541 mi)[a]
10.517 of Earth's

Flattening

0.06487

6.1469×10 ¹⁰ km ² (2.3733×10 ¹⁰ sq mi)
120.4 of Earth's

Volume

1.4313×10 ¹⁵ km ³ (3.434×10 ¹⁴ cu mi)[a]
1,321 of Earth's

Mass

1.8982×10 ²⁷ kg (4.1848×10 ²⁷ lb)

317.8 of Earth's

1/1047 of Sun's[10]

1,326 kg/m³ (2,235 lb/cu yd)[b]

24.79 m/s² (81.3 ft/s²)[a]
2.528 g

0.2756±0.0006 [11]

9.9258 h (9 h 55 m 33 s)[3]

Equatorial rotation velocity

12.6 km/s (7.8 mi/s; 45,000 km/h)

268.057°; 17 h 52 m 14 s

Albedo

0.503 ( Bond)[12]
0.538 ( geometric)[13]

Temperature

88 K (−185 °C) ( blackbody temperature)

Surface temp.

min

mean

max

1 bar

165 K

0.1 bar

78 K

128 K

−2.94[14] to −1.66[14]

−9.4[15]

200-600 kPa (30-90 psi)
(opaque cloud deck)[16]

Composition by volume

11.86 Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, and slightly less than one one-thousandth the mass of the Sun. Jupiter orbits the Sun at a distance of 5.20 AU (778.5 Gm) with an orbital period of years. Jupiter is the third brightest natural object in the Earth's night sky after the Moon and Venus, and it has been observed since prehistoric times. It was named after Jupiter, the chief deity of ancient Roman religion.

Jupiter was the first planet to form, and its inward migration during the primordial Solar System impacted much of the formation history of the other planets. Jupiter is primarily composed of hydrogen (90% by volume), followed by helium, which makes up a quarter of its mass and a tenth of its volume. The ongoing contraction of Jupiter's interior generates more heat than the planet receives from the Sun. Its internal structure is believed to comprise an outer mantle of liquid metallic hydrogen, and a diffuse inner core of denser material. Because of its rapid rotation rate of 1 rotation per 10 hours, Jupiter's shape is an oblate spheroid: it has a slight but noticeable bulge around the equator. The outer atmosphere is divided into a series of latitudinal bands, with turbulence and storms along their interacting boundaries. The most obvious result of this is the Great Red Spot, a giant storm which has been observed since 1831 and possibly earlier.

Jupiter is surrounded by a faint planetary ring system and has a powerful magnetosphere, the second largest contiguous structure in the Solar System (after the heliosphere). Jupiter forms a system of 95 known moons and probably many more, including the four large moons discovered by Galileo Galilei in 1610: Io, Europa, Ganymede, and Callisto. Ganymede, the largest of the four, is larger than the planet Mercury. Callisto is the second largest; Io and Europa are approximately the size of Earth's Moon.

Since 1973, Jupiter has been visited by nine robotic probes: seven flybys and two dedicated orbiters, with one more en route and one awaiting launch.

Name and symbol

In both the ancient Greek and Roman civilizations, Jupiter was named after the chief god of the divine pantheon: Zeus to the Greeks and Jupiter to the Romans.[17] The International Astronomical Union formally adopted the name Jupiter for the planet in 1976, and has since named its newly discovered satellites for the god's lovers, favourites, and descendants.[18] The planetary symbol for Jupiter, , descends from a Greek zeta with a horizontal stroke, ⟨Ƶ⟩, as an abbreviation for Zeus.[19][20]

In Latin, Iovis is the genitive case of , i.e. Jupiter. It is associated with the etymology of Zeus ('sky father'). The English equivalent, Jove, is only known to have come into use as a poetic name for the planet around the 14th century.

Jovian is the adjectival form of Jupiter. The older adjectival form jovial, employed by astrologers in the Middle Ages, has come to mean 'happy' or 'merry', moods ascribed to Jupiter's influence in astrology.

The original Greek deity Zeus supplies the root zeno-, which is used to form some Jupiter-related words, such as zenographic.

Formation and migration

Jupiter is believed to be the oldest planet in the Solar System. Current models of Solar System formation suggest that Jupiter formed at or beyond the snow line: a distance from the early Sun where the temperature was sufficiently cold for volatiles such as water to condense into solids. The planet began as a solid core, which then accumulated its gaseous atmosphere. As a consequence, the planet must have formed before the solar nebula was fully dispersed. During its formation, Jupiter's mass gradually increased until it had 20 times the mass of the Earth, approximately half of which was made up of silicates, ices and other heavy-element constituents. When the proto-Jupiter grew larger than 50 Earth masses it created a gap in the solar nebula. Thereafter, the growing planet reached its final mass in 3-4 million years.

According to the " grand tack hypothesis", Jupiter began to form at a distance of roughly 3.5 AU (520 million km; 330 million mi) from the Sun. As the young planet accreted mass, interaction with the gas disk orbiting the Sun and orbital resonances with Saturn caused it to migrate inward. This upset the orbits of several super-Earths orbiting closer to the Sun, causing them to collide destructively. Saturn would later have begun to migrate inwards too, much faster than Jupiter, until the two planets became captured in a 3:2 mean motion resonance at approximately 1.5 AU (220 million km; 140 million mi) from the Sun. This changed the direction of migration, causing them to migrate away from the Sun and out of the inner system to their current locations. All of this happened over a period of 3-6 million years, with the final migration of Jupiter occurring over several hundred thousand years. Jupiter's migration from the inner solar system eventually allowed the inner planets-including Earth-to form from the rubble.

There are several unresolved issues with the grand tack hypothesis. The resulting formation timescales of terrestrial planets appear to be inconsistent with the measured elemental composition. It is likely that Jupiter would have settled into an orbit much closer to the Sun if it had migrated through the solar nebula. Some competing models of Solar System formation predict the formation of Jupiter with orbital properties that are close to those of the present day planet. Other models predict Jupiter forming at distances much farther out, such as 18 AU (2.7 billion km; 1.7 billion mi).

According to the Nice model, infall of proto- Kuiper belt objects over the first 600 million years of Solar System history caused Jupiter and Saturn to migrate from their initial positions into a 1:2 resonance, which caused Saturn to shift into a higher orbit, disrupting the orbits of Uranus and Neptune, depleting the Kuiper belt, and triggering the Late Heavy Bombardment.

Based on Jupiter's composition, researchers have made the case for an initial formation outside the molecular nitrogen (N ₂) snowline, which is estimated at 20-30 AU (3.0-4.5 billion km; 1.9-2.8 billion mi) from the Sun, and possibly even outside the argon snowline, which may be as far as 40 AU (6.0 billion km; 3.7 billion mi). Having formed at one of these extreme distances, Jupiter would then have, over a roughly 700,000-year period, migrated inwards to its current location. during an epoch approximately 2-3 million years after the planet began to form. In this model, Saturn, Uranus and Neptune would have formed even further out than Jupiter, and Saturn would also have migrated inwards.

Physical characteristics

Jupiter is a gas giant, being primarily composed of gas and liquid rather than solid matter. It is the largest planet in the Solar System, with a diameter of 142,984 km (88,846 mi) at its equator, giving it a volume 1,321 times that of the Earth. Its average density, 1.326 g/cm ³, is lower than those of the four terrestrial planets.

Composition

By mass, Jupiter's atmosphere is approximately 76% hydrogen and 24% helium, though, because helium atoms are more massive than hydrogen molecules, Jupiter's upper atmosphere is about 90% hydrogen and 10% helium by volume. The atmosphere also contains trace amounts of methane, water vapour, ammonia, and silicon-based compounds as well as fractional amounts of carbon, ethane, hydrogen sulfide, neon, oxygen, phosphine, and sulfur. The outermost layer of the atmosphere contains crystals of frozen ammonia. Through infrared and ultraviolet measurements, trace amounts of benzene and other hydrocarbons have also been found. The interior of Jupiter contains denser materials-by mass it is roughly 71% hydrogen, 24% helium, and 5% other elements.

The atmospheric proportions of hydrogen and helium are close to the theoretical composition of the primordial solar nebula. Neon in the upper atmosphere only consists of 20 parts per million by mass, which is about a tenth as abundant as in the Sun. Jupiter's helium abundance is about 80% that of the Sun due to precipitation of these elements as helium-rich droplets, a process that happens deep in the planet's interior.

Based on spectroscopy, Saturn is thought to be similar in composition to Jupiter, but the other giant planets Uranus and Neptune have relatively less hydrogen and helium and relatively more of the next most common elements, including oxygen, carbon, nitrogen, and sulfur. Those planets are known as ice giants, because the majority of their volatile compounds are in solid form.

Size and mass

Jupiter with its moon Europa on the left. Earth's diameter is 11 times smaller than Jupiter, and 4 times larger than Europa.

Jupiter's mass is 318 times that of Earth; 2.5 times that of all the other planets in the Solar System combined. It is so massive that its barycentre with the Sun lies above the Sun's surface at 1.068 solar radii from the Sun's centre. Jupiter's radius is about one tenth the radius of the Sun, and its mass is one thousandth the mass of the Sun, as the densities of the two bodies are similar. A " Jupiter mass" ( M J or M Jup) is often used as a unit to describe masses of other objects, particularly extrasolar planets and brown dwarfs. For example, the extrasolar planet HD 209458 b has a mass of 0.69 M J, while the brown dwarf Gliese 229 b has a mass of 60.4 M J.

Theoretical models indicate that if Jupiter had over 40% more mass, the interior would be so compressed that its volume would decrease despite the increasing amount of matter. For smaller changes in its mass, the radius would not change appreciably. As a result, Jupiter is thought to have about as large a diameter as a planet of its composition and evolutionary history can achieve. The process of further shrinkage with increasing mass would continue until appreciable stellar ignition was achieved. Although Jupiter would need to be about 75 times more massive to fuse hydrogen and become a star, its diameter is sufficient as the smallest red dwarf may be only slightly larger in radius than Saturn.

Jupiter radiates more heat than it receives through solar radiation, due to the Kelvin-Helmholtz mechanism within its contracting interior. This process causes Jupiter to shrink by about 1 mm (0.039 in)/yr. At the time of its formation, Jupiter was hotter and was about twice its current diameter.

Internal structure

Diagram of Jupiter, its interior, surface features, rings, and inner moons.

Before the early 21st century, most scientists proposed one of two scenarios for the formation of Jupiter. If the planet accreted first as a solid body, it would consist of a dense core, a surrounding layer of liquid metallic hydrogen (with some helium) extending outward to about 80% of the radius of the planet, and an outer atmosphere consisting primarily of molecular hydrogen. Alternatively, if the planet collapsed directly from the gaseous protoplanetary disk, it was expected to completely lack a core, consisting instead of a denser and denser fluid (predominantly molecular and metallic hydrogen) all the way to the centre. Data from the Juno mission showed that Jupiter has a diffuse core that mixes into its mantle, extending for 30-50% of the planet's radius, and comprising heavy elements with a combined mass 7-25 times the Earth. This mixing process could have arisen during formation, while the planet accreted solids and gases from the surrounding nebula. Alternatively, it could have been caused by an impact from a planet of about ten Earth masses a few million years after Jupiter's formation, which would have disrupted an originally solid Jovian core.

Outside the layer of metallic hydrogen lies a transparent interior atmosphere of hydrogen. At this depth, the pressure and temperature are above molecular hydrogen's critical pressure of 1.3 MPa and critical temperature of 33 K (−240.2 °C; −400.3 °F). In this state, there are no distinct liquid and gas phases-hydrogen is said to be in a supercritical fluid state. The hydrogen and helium gas extending downward from the cloud layer gradually transitions to a liquid in deeper layers, possibly resembling something akin to an ocean of liquid hydrogen and other supercritical fluids. Physically, the gas gradually becomes hotter and denser as depth increases.

Rain-like droplets of helium and neon precipitate downward through the lower atmosphere, depleting the abundance of these elements in the upper atmosphere. Calculations suggest that helium drops separate from metallic hydrogen at a radius of 60,000 km (37,000 mi) (11,000 km (6,800 mi) below the cloud tops) and merge again at 50,000 km (31,000 mi) (22,000 km (14,000 mi) beneath the clouds). Rainfalls of diamonds have been suggested to occur, as well as on Saturn and the ice giants Uranus and Neptune.

The temperature and pressure inside Jupiter increase steadily inward as the heat of planetary formation can only escape by convection. At a surface depth where the atmospheric pressure level is 1 bar (0.10 MPa), the temperature is around 165 K (−108 °C; −163 °F). The region where supercritical hydrogen changes gradually from a molecular fluid to a metallic fluid spans pressure ranges of 50-400 GPa with temperatures of 5,000-8,400 K (4,730-8,130 °C; 8,540-14,660 °F), respectively. The temperature of Jupiter's diluted core is estimated to be 20,000 K (19,700 °C; 35,500 °F) with a pressure of around 4,000 GPa.

Atmosphere

Timelapse of Jupiter's cloud system moving over the course of one month (photographed during Voyager 1 flyby in 1979)

The atmosphere of Jupiter extends to a depth of 3,000 km (2,000 mi) below the cloud layers.

Cloud layers

Jupiter is perpetually covered with clouds of ammonia crystals, which may contain ammonium hydrosulfide as well. The clouds are located in the tropopause layer of the atmosphere, forming bands at different latitudes, known as tropical regions. These are subdivided into lighter-hued zones and darker belts. The interactions of these conflicting circulation patterns cause storms and turbulence. Wind speeds of 100 metres per second (360 km/h; 220 mph) are common in zonal jet streams. The zones have been observed to vary in width, colour and intensity from year to year, but they have remained stable enough for scientists to name them.

The cloud layer is about 50 km (31 mi) deep, and consists of at least two decks of ammonia clouds: a thin clearer region on top with a thick lower deck. There may be a thin layer of water clouds underlying the ammonia clouds, as suggested by flashes of lightning detected in the atmosphere of Jupiter. These electrical discharges can be up to a thousand times as powerful as lightning on Earth. The water clouds are assumed to generate thunderstorms in the same way as terrestrial thunderstorms, driven by the heat rising from the interior. The Juno mission revealed the presence of "shallow lightning" which originates from ammonia-water clouds relatively high in the atmosphere. These discharges carry "mushballs" of water-ammonia slushes covered in ice, which fall deep into the atmosphere. Upper-atmospheric lightning has been observed in Jupiter's upper atmosphere, bright flashes of light that last around 1.4 milliseconds. These are known as "elves" or "sprites" and appear blue or pink due to the hydrogen.

The orange and brown colours in the clouds of Jupiter are caused by upwelling compounds that change colour when they are exposed to ultraviolet light from the Sun. The exact makeup remains uncertain, but the substances are thought to be made up of phosphorus, sulfur or possibly hydrocarbons. These colourful compounds, known as chromophores, mix with the warmer clouds of the lower deck. The light-coloured zones are formed when rising convection cells form crystallising ammonia that hides the chromophores from view.

Jupiter has a low axial tilt, thus making it that the poles always receive less solar radiation than the planet's equatorial region. Convection within the interior of the planet transports energy to the poles, balancing out temperatures at the cloud layer.

Great Red Spot and other vortices

Close-up of the Great Red Spot imaged by the Juno spacecraft in April 2018

A well-known feature of Jupiter is the Great Red Spot, a persistent anticyclonic storm located 22° south of the equator. It was first observed in 1831, and possibly as early as 1665. Images by the Hubble Space Telescope have shown two more "red spots" adjacent to the Great Red Spot. The storm is visible through Earth-based telescopes with an aperture of 12 cm or larger. The oval object rotates counterclockwise, with a period of about six days. The maximum altitude of this storm is about 8 km (5 mi) above the surrounding cloud tops. The Spot's composition and the source of its red colour remain uncertain, although photodissociated ammonia reacting with acetylene is a likely explanation.

The Great Red Spot is larger than the Earth. Mathematical models suggest that the storm is stable and will be a permanent feature of the planet. However, it has significantly decreased in size since its discovery. Initial observations in the late 1800s showed it to be approximately 41,000 km (25,500 mi) across. By the time of the flybys in 1979, the storm had a length of 23,300 km (14,500 mi) and a width of approximately 13,000 km (8,000 mi). Hubble observations in 1995 showed it had decreased in size to 20,950 km (13,020 mi), and observations in 2009 showed the size to be 17,910 km (11,130 mi). As of 2015, the storm was measured at approximately 16,500 by 10,940 km (10,250 by 6,800 mi), and was decreasing in length by about 930 km (580 mi) per year. In October 2021, a Juno flyby mission measured the depth of the Great Red Spot, putting it at around 300-500 kilometres (190-310 mi).

Juno missions show that there are several polar cyclone groups at Jupiter's poles. The northern group contains nine cyclones, with a large one in the centre and eight others around it, while its southern counterpart also consists of a centre vortex but is surrounded by five large storms and a single smaller one for a total of 7 storms.

Formation of Oval BA from three white ovals

In 2000, an atmospheric feature formed in the southern hemisphere that is similar in appearance to the Great Red Spot, but smaller. This was created when smaller, white oval-shaped storms merged to form a single feature-these three smaller white ovals were formed in 1939-1940. The merged feature was named Oval BA. It has since increased in intensity and changed from white to red, earning it the nickname "Little Red Spot".

In April 2017, a "Great Cold Spot" was discovered in Jupiter's thermosphere at its north pole. This feature is 24,000 km (15,000 mi) across, 12,000 km (7,500 mi) wide, and 200 °C (360 °F) cooler than surrounding material. While this spot changes form and intensity over the short term, it has maintained its general position in the atmosphere for more than 15 years. It may be a giant vortex similar to the Great Red Spot, and appears to be quasi-stable like the vortices in Earth's thermosphere. This feature may be formed by interactions between charged particles generated from Io and the strong magnetic field of Jupiter, resulting in a redistribution of heat flow.

Magnetosphere

Jupiter's magnetic field is the strongest of any planet in the Solar System, with a dipole moment of 4.170 gauss (0.4170 mT) that is tilted at an angle of 10.31° to the pole of rotation. The surface magnetic field strength varies from 2 gauss (0.20 mT) up to 20 gauss (2.0 mT). This field is thought to be generated by eddy currents-swirling movements of conducting materials-within the liquid, metallic hydrogen core. At about 75 Jupiter radii from the planet, the interaction of the magnetosphere with the solar wind generates a bow shock. Surrounding Jupiter's magnetosphere is a magnetopause, located at the inner edge of a magnetosheath-a region between it and the bow shock. The solar wind interacts with these regions, elongating the magnetosphere on Jupiter's lee side and extending it outward until it nearly reaches the orbit of Saturn. The four largest moons of Jupiter all orbit within the magnetosphere, which protects them from solar wind.

The volcanoes on the moon Io emit large amounts of sulfur dioxide, forming a gas torus along its orbit. The gas is ionized in Jupiter's magnetosphere, producing sulfur and oxygen ions. They, together with hydrogen ions originating from the atmosphere of Jupiter, form a plasma sheet in Jupiter's equatorial plane. The plasma in the sheet co-rotates with the planet, causing deformation of the dipole magnetic field into that of a magnetodisk. Electrons within the plasma sheet generate a strong radio signature, with short, superimposed bursts in the range of 0.6-30 MHz that are detectable from Earth with consumer-grade shortwave radio receivers. As Io moves through this torus, the interaction generates Alfvén waves that carry ionized matter into the polar regions of Jupiter. As a result, radio waves are generated through a cyclotron maser mechanism, and the energy is transmitted out along a cone-shaped surface. When Earth intersects this cone, the radio emissions from Jupiter can exceed the radio output of the Sun.

Planetary rings

Jupiter has a faint planetary ring system composed of three main segments: an inner torus of particles known as the halo, a relatively bright main ring, and an outer gossamer ring. These rings appear to be made of dust, whereas Saturn's rings are made of ice. The main ring is most likely made out of material ejected from the satellites Adrastea and Metis, which is drawn into Jupiter because of the planet's strong gravitational influence. New material is added by additional impacts. In a similar way, the moons Thebe and Amalthea are believed to produce the two distinct components of the dusty gossamer ring. There is evidence of a fourth ring that may consist of collisional debris from Amalthea that is strung along the same moon's orbit.

Orbit and rotation

Orbit of Jupiter and other outer Solar System planets

Jupiter is the only planet whose barycentre with the Sun lies outside the volume of the Sun, though by only 7% of the Sun's radius. The average distance between Jupiter and the Sun is 778 million km (5.2 AU) and it completes an orbit every 11.86 years. This is approximately two-fifths the orbital period of Saturn, forming a near orbital resonance. The orbital plane of Jupiter is inclined 1.30° compared to Earth. Because the eccentricity of its orbit is 0.049, Jupiter is slightly over 75 million km nearer the Sun at perihelion than aphelion, which means that its orbit is nearly circular. This low eccentricity is at odds with exoplanet discoveries, which have revealed Jupiter-sized planets with very high eccentricities. Models suggest this may be due to there being only two giant planets in our Solar System, as the presence of a third or more giant planets tends to induce larger eccentricities.

The axial tilt of Jupiter is relatively small, only 3.13°, so its seasons are insignificant compared to those of Earth and Mars.

Jupiter's rotation is the fastest of all the Solar System's planets, completing a rotation on its axis in slightly less than ten hours; this creates an equatorial bulge easily seen through an amateur telescope. Because Jupiter is not a solid body, its upper atmosphere undergoes differential rotation. The rotation of Jupiter's polar atmosphere is about 5 minutes longer than that of the equatorial atmosphere. The planet is an oblate spheroid, meaning that the diameter across its equator is longer than the diameter measured between its poles. On Jupiter, the equatorial diameter is 9,276 km (5,764 mi) longer than the polar diameter.

Three systems are used as frames of reference for tracking planetary rotation, particularly when graphing the motion of atmospheric features. System I applies to latitudes from 7° N to 7° S; its period is the planet's shortest, at 9h 50 m 30.0s. System II applies at latitudes north and south of these; its period is 9h 55 m 40.6s. System III was defined by radio astronomers and corresponds to the rotation of the planet's magnetosphere; its period is Jupiter's official rotation.

Observation

Jupiter and four Galilean moons seen through an amateur telescope

Jupiter is usually the fourth brightest object in the sky (after the Sun, the Moon, and Venus), although at opposition Mars can appear brighter than Jupiter. Depending on Jupiter's position with respect to the Earth, it can vary in visual magnitude from as bright as −2.94 at opposition down to −1.66 during conjunction with the Sun. The mean apparent magnitude is −2.20 with a standard deviation of 0.33. The angular diameter of Jupiter likewise varies from 50.1 to 30.5 arc seconds. Favourable oppositions occur when Jupiter is passing through the perihelion of its orbit, bringing it closer to Earth. Near opposition, Jupiter will appear to go into retrograde motion for a period of about 121 days, moving backward through an angle of 9.9° before returning to prograde movement.

Because the orbit of Jupiter is outside that of Earth, the phase angle of Jupiter as viewed from Earth is always less than 11.5°; thus, Jupiter always appears nearly fully illuminated when viewed through Earth-based telescopes. It was only during spacecraft missions to Jupiter that crescent views of the planet were obtained. A small telescope will usually show Jupiter's four Galilean moons and the prominent cloud belts across Jupiter's atmosphere. A larger telescope with an aperture of 4-6 inches (10-15 cm) will show Jupiter's Great Red Spot when it faces Earth.

Pre-telescopic research

Model in the Almagest of the longitudinal motion of Jupiter (☉) relative to Earth (🜨)

Observation of Jupiter dates back to at least the Babylonian astronomers of the 7th or 8th century BC. The ancient Chinese knew Jupiter as the " Suì Star" ( Suìxīng ) and established their cycle of 12 earthly branches based on the approximate number of years it takes Jupiter to rotate around the Sun; the Chinese language still uses its name ( simplified as ) when referring to years of age. By the 4th century BC, these observations had developed into the Chinese zodiac, and each year became associated with a Tai Sui star and god controlling the region of the heavens opposite Jupiter's position in the night sky. These beliefs survive in some Taoist religious practices and in the East Asian zodiac's twelve animals. The Chinese historian Xi Zezong has claimed that Gan De, an ancient Chinese astronomer, reported a small star "in alliance" with the planet, which may indicate a sighting of one of Jupiter's moons with the unaided eye. If true, this would predate Galileo's discovery by nearly two millennia.

A 2016 paper reports that trapezoidal rule was used by Babylonians before 50 BCE for integrating the velocity of Jupiter along the ecliptic. In his 2nd century work the , the Hellenistic astronomer Claudius Ptolemaeus constructed a geocentric planetary model based on deferents and epicycles to explain Jupiter's motion relative to Earth, giving its orbital period around Earth as 4332.38 days, or 11.86 years.

Ground-based telescope research

Galileo's drawings of Jupiter and its "Medicean Stars" from Sidereus Nuncius

In 1610, Italian polymath Galileo Galilei discovered the four largest moons of Jupiter (now known as the Galilean moons) using a telescope. This is thought to be the first telescopic observation of moons other than Earth's. Just one day after Galileo, Simon Marius independently discovered moons around Jupiter, though he did not publish his discovery in a book until 1614. It was Marius's names for the major moons, however, that stuck: Io, Europa, Ganymede, and Callisto. The discovery was a major point in favour of Copernicus' heliocentric theory of the motions of the planets; Galileo's outspoken support of the Copernican theory led to him being tried and condemned by the Inquisition.

In the autumn of 1639, the Neapolitan optician Francesco Fontana tested a 22-palm telescope of his own making and discovered the characteristic bands of the planet's atmosphere.

During the 1660s, Giovanni Cassini used a new telescope to discover spots in Jupiter's atmosphere, observe that the planet appeared oblate, and estimate its rotation period. In 1692, Cassini noticed that the atmosphere undergoes a differential rotation.

The Great Red Spot may have been observed as early as 1664 by Robert Hooke and in 1665 by Cassini, although this is disputed. The pharmacist Heinrich Schwabe produced the earliest known drawing to show details of the Great Red Spot in 1831. The Red Spot was reportedly lost from sight on several occasions between 1665 and 1708 before becoming quite conspicuous in 1878. It was recorded as fading again in 1883 and at the start of the 20th century.

Both Giovanni Borelli and Cassini made careful tables of the motions of Jupiter's moons, which allowed predictions of when the moons would pass before or behind the planet. By the 1670s, Cassini observed that when Jupiter was on the opposite side of the Sun from Earth, these events would occur about 17 minutes later than expected. Ole Rømer deduced that light does not travel instantaneously (a conclusion that Cassini had earlier rejected), and this timing discrepancy was used to estimate the speed of light.

In 1892, E. E. Barnard observed a fifth satellite of Jupiter with the 36-inch (910 mm) refractor at Lick Observatory in California. This moon was later named Amalthea. It was the last planetary moon to be discovered directly by a visual observer through a telescope. An additional eight satellites were discovered before the flyby of the Voyager 1 probe in 1979.

Jupiter viewed in infrared by JWST
(July 14, 2022)

In 1932, Rupert Wildt identified absorption bands of ammonia and methane in the spectra of Jupiter. Three long-lived anticyclonic features called "white ovals" were observed in 1938. For several decades they remained as separate features in the atmosphere, sometimes approaching each other but never merging. Finally, two of the ovals merged in 1998, then absorbed the third in 2000, becoming Oval BA.

Radiotelescope research

Image of Jupiter and its radiation belts in radio

In 1955, Bernard Burke and Kenneth Franklin discovered that Jupiter emits bursts of radio waves at a frequency of 22.2 MHz. The period of these bursts matched the rotation of the planet, and they used this information to determine a more precise value for Jupiter's rotation rate. Radio bursts from Jupiter were found to come in two forms: long bursts (or L-bursts) lasting up to several seconds, and short bursts (or S-bursts) lasting less than a hundredth of a second.

Scientists have discovered three forms of radio signals transmitted from Jupiter:

Decametric radio bursts (with a wavelength of tens of metres) vary with the rotation of Jupiter, and are influenced by the interaction of Io with Jupiter's magnetic field.

Decimetric radio emission (with wavelengths measured in centimetres) was first observed by Frank Drake and Hein Hvatum in 1959. The origin of this signal is a torus-shaped belt around Jupiter's equator, which generates cyclotron radiation from electrons that are accelerated in Jupiter's magnetic field.

Thermal radiation is produced by heat in the atmosphere of Jupiter.

Exploration

Jupiter has been visited by automated spacecraft since 1973, when the space probe passed close enough to Jupiter to send back revelations about its properties and phenomena. Missions to Jupiter are accomplished at a cost in energy, which is described by the net change in velocity of the spacecraft, or delta-v. Entering a Hohmann transfer orbit from Earth to Jupiter from low Earth orbit requires a delta-v of 6.3 km/s, which is comparable to the 9.7 km/s delta-v needed to reach low Earth orbit. Gravity assists through planetary flybys can be used to reduce the energy required to reach Jupiter.

Flyby missions

Beginning in 1973, several spacecraft performed planetary flyby manoeuvres that brought them within observation range of Jupiter. The Pioneer missions obtained the first close-up images of Jupiter's atmosphere and several of its moons. They discovered that the radiation fields near the planet were much stronger than expected, but both spacecraft managed to survive in that environment. The trajectories of these spacecraft were used to refine the mass estimates of the Jovian system. Radio occultations by the planet resulted in better measurements of Jupiter's diameter and the amount of polar flattening.

Six years later, the Voyager missions vastly improved the understanding of the Galilean moons and discovered Jupiter's rings. They also confirmed that the Great Red Spot was anticyclonic. Comparison of images showed that the Spot had changed hues since the Pioneer missions, turning from orange to dark brown. A torus of ionized atoms was discovered along Io's orbital path, which were found to come from erupting volcanoes on the moon's surface. As the spacecraft passed behind the planet, it observed flashes of lightning in the night side atmosphere.

The next mission to encounter Jupiter was the solar probe. In February 1992, it performed a flyby manoeuvre to attain a polar orbit around the Sun. During this pass, the spacecraft studied Jupiter's magnetosphere, although it had no cameras to photograph the planet. The spacecraft passed by Jupiter six years later, this time at a much greater distance.

In 2000, the Cassini probe flew by Jupiter on its way to Saturn, and provided higher-resolution images.

The New Horizons probe flew by Jupiter in 2007 for a gravity assist en route to Pluto. The probe's cameras measured plasma output from volcanoes on Io and studied all four Galilean moons in detail.

Galileo in preparation for mating with the rocket, 1989

The first spacecraft to orbit Jupiter was the mission, which reached the planet on December 7, 1995. It remained in orbit for over seven years, conducting multiple flybys of all the Galilean moons and Amalthea. The spacecraft also witnessed the impact of Comet Shoemaker-Levy 9 when it collided with Jupiter in 1994. Some of the goals for the mission were thwarted due to a malfunction in Galileo' s high-gain antenna.

A 340-kilogram titanium atmospheric probe was released from the spacecraft in July 1995, entering Jupiter's atmosphere on December 7. It parachuted through 150 km (93 mi) of the atmosphere at a speed of about 2,575 km/h (1600 mph) and collected data for 57.6 minutes until the spacecraft was destroyed. The Galileo orbiter itself experienced a more rapid version of the same fate when it was deliberately steered into the planet on September 21, 2003. NASA destroyed the spacecraft to avoid any possibility of the spacecraft crashing into and possibly contaminating the moon Europa, which may harbour life.

Data from this mission revealed that hydrogen composes up to 90% of Jupiter's atmosphere. The recorded temperature was more than 300 °C (570 °F) and the windspeed measured more than 644 km/h (>400 mph) before the probes vaporized.

Juno preparing for testing in a rotation stand, 2011

NASA's mission arrived at Jupiter on July 4, 2016 with the goal of studying the planet in detail from a polar orbit. The spacecraft was originally intended to orbit Jupiter thirty-seven times over a period of twenty months. During the mission, the spacecraft will be exposed to high levels of radiation from Jupiter's magnetosphere, which may cause future failure of certain instruments. On August 27, 2016, the spacecraft completed its first fly-by of Jupiter and sent back the first-ever images of Jupiter's north pole.

Juno completed 12 orbits before the end of its budgeted mission plan, ending July 2018. In June of that year, NASA extended the mission operations plan to July 2021, and in January of that year the mission was extended to September 2025 with four lunar flybys: one of Ganymede, one of Europa, and two of Io. When Juno reaches the end of the mission, it will perform a controlled deorbit and disintegrate into Jupiter's atmosphere. This will avoid the risk of collision with Jupiter's moons.

Cancelled missions and future plans

There is great interest in missions to study Jupiter's larger icy moons, which may have subsurface liquid oceans. Funding difficulties have delayed progress, causing NASA's ( Jupiter Icy Moons Orbiter) to be cancelled in 2005. A subsequent proposal was developed for a joint NASA/ ESA mission called EJSM/Laplace, with a provisional launch date around 2020. EJSM/Laplace would have consisted of the NASA-led Jupiter Europa Orbiter and the ESA-led Jupiter Ganymede Orbiter. However, the ESA formally ended the partnership in April 2011, citing budget issues at NASA and the consequences on the mission timetable. Instead, ESA planned to go ahead with a European-only mission to compete in its L1 Cosmic Vision selection. These plans have been realized as the European Space Agency's Jupiter Icy Moon Explorer (JUICE), launched on April 14, 2023, followed by NASA's Europa Clipper mission, scheduled for launch in 2024.

Views of Jupiter from JunoCam

Other proposed missions include the Chinese National Space Administration's mission which aims to launch an orbiter to the Jovian system and possibly Callisto around 2035, and CNSA's Interstellar Express and NASA's Interstellar Probe, which would both use Jupiter's gravity to help them reach the edges of the heliosphere.

Jupiter has 95 known natural satellites, and it is likely that this number would go up in the future due to improved instrumentation. Of these, 79 are less than 10 km in diameter. The four largest moons are Ganymede, Callisto, Io and Europa (in order of decreasing size), collectively known as the " Galilean moons", and are visible from Earth with binoculars on a clear night.

Galilean moons

The moons discovered by Galileo-Io, Europa, Ganymede, and Callisto-are among the largest in the Solar System. The orbits of Io, Europa, and Ganymede form a pattern known as a Laplace resonance; for every four orbits that Io makes around Jupiter, Europa makes exactly two orbits and Ganymede makes exactly one. This resonance causes the gravitational effects of the three large moons to distort their orbits into elliptical shapes, because each moon receives an extra tug from its neighbours at the same point in every orbit it makes. The tidal force from Jupiter, on the other hand, works to circularize their orbits.

The eccentricity of their orbits causes regular flexing of the three moons' shapes, with Jupiter's gravity stretching them out as they approach it and allowing them to spring back to more spherical shapes as they swing away. The friction created by this tidal flexing generates heat in the interior of the moons. This is seen most dramatically in the volcanic activity of Io (which is subject to the strongest tidal forces), and to a lesser degree in the geological youth of Europa's surface, which indicates recent resurfacing of the moon's exterior.

Name

IPA

Diameter

Mass

Orbital radius

Orbital period

km

D☾

kg

M☾

km

a☾

days

T☾

The Galilean moons. From left to right, in order of increasing distance from Jupiter: Io, Europa, Ganymede, Callisto.

The Galilean moons Io, Europa, Ganymede, and Callisto (in order of increasing distance from Jupiter)

Classification

Jupiter's moons were traditionally classified into four groups of four, based on their similar orbital elements. This picture has been complicated by the discovery of numerous small outer moons since 1999. Jupiter's moons are currently divided into several different groups, although there are several moons which are not part of any group.

The eight innermost regular moons, which have nearly circular orbits near the plane of Jupiter's equator, are thought to have formed alongside Jupiter, whilst the remainder are irregular moons and are thought to be captured asteroids or fragments of captured asteroids. The irregular moons within each group may have a common origin, perhaps as a larger moon or captured body that broke up.

Regular moons

These four moons, discovered by Galileo Galilei and by Simon Marius in parallel, orbit between 400,000 and 2,000,000 km, and are some of the largest moons in the Solar System.

Irregular moons

Himalia group

A tightly clustered group of prograde-orbiting moons with orbits around 11,000,000-12,000,000 km from Jupiter.

Ananke group

This group of retrograde-orbiting moons has rather indistinct borders, averaging 21,276,000 km from Jupiter with an average inclination of 149 degrees.

Interaction with the Solar System

As the most massive of the eight planets, the gravitational influence of Jupiter has helped shape the Solar System. With the exception of Mercury, the orbits of the system's planets lie closer to Jupiter's orbital plane than the Sun's equatorial plane. The Kirkwood gaps in the asteroid belt are mostly caused by Jupiter, and the planet may have been responsible for the purported Late Heavy Bombardment in the inner Solar System's history.

In addition to its moons, Jupiter's gravitational field controls numerous asteroids that have settled around the Lagrangian points that precede and follow the planet in its orbit around the Sun. These are known as the Trojan asteroids, and are divided into Greek and Trojan "camps" to honour the . The first of these, 588 Achilles, was discovered by Max Wolf in 1906; since then more than two thousand have been discovered. The largest is 624 Hektor.

The Jupiter family is defined as comets that have a semi-major axis smaller than Jupiter's; most short-period comets belong to this group. Members of the Jupiter family are thought to form in the Kuiper belt outside the orbit of Neptune. During close encounters with Jupiter, they are perturbed into orbits with a smaller period, which then becomes circularized by regular gravitational interactions with the Sun and Jupiter.

Brown spots mark Comet Shoemaker-Levy 9's impact sites on Jupiter

Jupiter has been called the Solar System's vacuum cleaner because of its immense gravity well and location near the inner Solar System. There are more impacts on Jupiter, such as comets, than on any other planet in the Solar System. For example, Jupiter experiences about 200 times more asteroid and comet impacts than Earth. In the past, scientists believed that Jupiter partially shielded the inner system from cometary bombardment. However, computer simulations in 2008 suggest that Jupiter does not cause a net decrease in the number of comets that pass through the inner Solar System, as its gravity perturbs their orbits inward roughly as often as it accretes or ejects them. This topic remains controversial among scientists, as some think it draws comets towards Earth from the Kuiper belt, while others believe that Jupiter protects Earth from the Oort cloud.

In July 1994, the Comet Shoemaker-Levy 9 comet collided with Jupiter. The impacts were closely observed by observatories around the world, including the Hubble Space Telescope and Galileo spacecraft. The event was widely covered by the media.

Surveys of early astronomical records and drawings produced eight examples of potential impact observations between 1664 and 1839. However, a 1997 review determined that these observations had little or no possibility of being the results of impacts. Further investigation by this team revealed a dark surface feature discovered by astronomer Giovanni Cassini in 1690 may have been an impact scar.

Jupiter, woodcut from a 1550 edition of Guido Bonatti's Liber Astronomiae

The existence of the planet Jupiter has been known since ancient times. It is visible to the naked eye in the night sky and can occasionally be seen in the daytime when the Sun is low. To the Babylonians, this planet represented their god Marduk, chief of their pantheon from the Hammurabi period. They used Jupiter's roughly 12-year orbit along the ecliptic to define the constellations of their zodiac.

The mythical Greek name for this planet is (Ζεύς), also referred to as Dias (Δίας), the planetary name of which is retained in modern Greek. The ancient Greeks knew the planet as Phaethon (), meaning "shining one" or "blazing star". The Greek myths of Zeus from the Homeric period showed particular similarities to certain Near-Eastern gods, including the Semitic El and Baal, the Sumerian Enlil, and the Babylonian god Marduk. The association between the planet and the Greek deity Zeus was drawn from Near Eastern influences and was fully established by the fourth century BCE, as documented in the of Plato and his contemporaries.

The god Jupiter is the Roman counterpart of Zeus, and he is the principal god of Roman mythology. The Romans originally called Jupiter the "star of Jupiter" ( Iuppiter Stella), as they believed it to be sacred to its namesake god. This name comes from the Proto-Indo-European vocative compound * Dyēu-pəter (nominative: *Dyēus-pətēr, meaning "Father Sky-God", or "Father Day-God"). As the supreme god of the Roman pantheon, Jupiter was the god of thunder, lightning, and storms, and was appropriately called the god of light and sky.

In Vedic astrology, Hindu astrologers named the planet after Brihaspati, the religious teacher of the gods, and often called it " Guru", which means the "Teacher". In Central Asian Turkic myths, Jupiter is called Erendiz or Erentüz, from eren (of uncertain meaning) and yultuz ("star"). The Turks calculated the period of the orbit of Jupiter as 11 years and 300 days. They believed that some social and natural events connected to Erentüz's movements on the sky. The Chinese, Vietnamese, Koreans, and Japanese called it the "wood star" ( Chinese: 木星; pinyin: ), based on the Chinese Five Elements. In China it became known as the "Year-star" (Sui-sing) as Chinese astronomers noted that it jumped one zodiac constellation each year (with corrections). In some ancient Chinese writings the years were named, at least in principle, in correlation with the Jovian zodiac signs.

Infrared view of Jupiter, imaged by the Gemini North telescope in Hawaiʻi, January 11, 2017

Jupiter imaged in visible light by the Hubble Space Telescope, January 11, 2017

Ultraviolet view of Jupiter by Hubble, January 11, 2017[244]

Jupiter and Europa, taken by Hubble on 25 August 2020, when the planet was 653 million kilometres from Earth.[245]

Infrared photo by James Webb Space Telescope, August 2022[246]

References

External links

Lohninger, Hans; et al. (November 2, 2005). "Jupiter, As Seen By Voyager 1". A Trip into Space. Virtual Institute of Applied Science.

Dunn, Tony (2006). "The Jovian System". Gravity Simulator. - A simulation of the 62 moons of Jupiter.

Jupiter in Motion - album of Juno imagery stitched into short videos (on Flickr)

June 2010 impact video on YouTube

Photographs of Jupiter circa 1920s from the Lick Observatory Records Digital Archive, UC Santa Cruz Library's Digital Collections. Archived September 4, 2015, at the Wayback Machine.

Interactive 3D gravity simulation of the Jovian system. Archived June 11, 2020, at the Wayback Machine.

Video (animation; 4:00): Flyby of Ganymede and Jupiter (NASA; 15 July 2021).

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Patricia Davidson age 12, of Neill, Nebr

If you have a telescope, even a small one, you can get a close look at giant Jupiter This,, the biggest of the planets by far, is due to rise late in the evening Wait until Scorpio, the Scorpion, is high in the sky This is one of the easiest of the summer constellations to find There are three bright stars in a row to mark the scorpion s claws and a great S curve swooping down to the tail Rising behind the Scorpion comes the constellation Sagittarius, the Archer Its stars look like a teapot or a pair of saddlebags, The bright planet rising after Sagittarius is Saturn The still brighter planet rising after Saturn Is Jupiter, the Giant

If the night is very clear, you can see dim bands of dark and light in parallel lines across the face of Jupiter, A powerful telescope shows these bands to be clouds of creamy tan and pearly grey So Jupiter, like the earth, has an atmosphere Astronomers tell us, however, that it is a very different atmosphere from ours There is no oxygen, nor is there carbon dioxide which is so necessary to plant life

The latest evidence suggests that Jupiter has an atmosphere mostly of hydrogen gas in which float foggy clouds of methane and ammonia, two gases which to us are poisonous Methane, however, is the so‑called marsh gas given off by decaying vegetation The great planet is 11 times wider than the earth, yet it whirls around on its axis in about 10 hours Its cloud bands heave and toes as though Jupiter suffered violent storms throughout its entire year, which is equal to almost 12 earth years

Such a stormy planet, with no oxygen and no carbon dioxide,, is not a likely place to support the lush green plant life which covers our earth, But, you may think, there are warm, sheltered spots on Jupiter where plants could survive This could not be, for the big planet is five times further from the sun than we are and therefore gets but a fraction of the light and heat which falls upon the earth The temperature of its clouds is estimated to be minus 130 centigrade degrees The plant life we know on earth cannot survive at this temperature It is even cold

enough to destroy the simple, one‑celled bacteria plants and their spores which are tough enough to survive through long periods of cold, drought and other hardship

The surface of Jupiter 1s most likely a slushy mess of partly frozen gases, Many experts think that a man would sink, maybe miles, down through the planet At any rate, because of the greater gravity of the giant planet, he would weigh two and a half times more than his weight on earth It is not likely that any tree could take root in the soupy surface and the mighty gravity of Jupiter would be exerted on any plant that tried to live on or in the frozen materials of the thick, outer crust

Our information about Jupiter indicates that it is a far from friendly planet to both plant and animal life as we know it But there are many, many things we do not know about the possibility of life on other planets, However, Jupiter has none of the right conditions to support the kind of life we have on earth.
For further information on Jupiter go Jet Propulsion site listed in Science News on our main menu.

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You ask andy is a great resource for students, teachers, parents and the general public. The questions are as varied as a child's imagination. The contents of the questions and answers are in the areas life science, space science, geography, health, history, social studies and unique topics not usually found in reference books.

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This website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. Sign up for our newsletter. © 2019 Gardening Know How This website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. Sign up for our newsletter. © 2019 Gardening Know How Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's GardensThis website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. Sign up for our newsletter. © 2019 Gardening Know How This website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. Sign up for our newsletter. © 2019 Gardening Know How Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens

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This website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. Sign up for our newsletter. © 2019 Gardening Know How This website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. Sign up for our newsletter. © 2019 Gardening Know How Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's GardensThis website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. Sign up for our newsletter. © 2019 Gardening Know How This website occasionally uses cookies to ensure you get the best experience on our website. By continuing to use our site you agree to our Terms of Service and our privacy policy Got it! Sign Up Home Gardens Houseplants Problems Lawn Care Composting Gardening Help Home › Special Gardens › Children's Gardens What Makes Plants Grow: Plants Growing Needs Children's Gardens By: Nikki Tilley, Author of The Bulb-o-licious Garden Printer Friendly Version Image by Corey Leopold By Nikki Tilley (Author of The Bulb-o-licious Garden) Plants are everywhere around us, but how do plants grow and what makes plants grow? There are many things plants need to grow such as water, nutrients, air, water, light, temperature, space, and time. Water & Nutrients Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease. Too little or too much water or nutrients can also be harmful. Air & Soil What helps plants grow besides water and nutrients? Fresh, clean air and healthy soil. Dirty air caused by smoke, gases, and other pollutants can be harmful to plants, limiting their ability to take in carbon dioxide from the air for making food (photosynthesis). It can also block out sunlight, which is also necessary for healthy plant growth. Healthy soil is extremely vital to plants. In addition to essential nutrients found in soil (from organic matter and micro-organisms), soil provides an anchor for plant roots and helps support the plants. Light & Temperature Plants also need sunlight to grow. Light is used as energy for making food, a process called photosynthesis. Too little light can make plants weak and leggy looking. They will also have fewer flowers and fruits. Temperature is important too. Most plants prefer cooler nighttime temps and warmer daytime temperatures. Too hot and they may burn, too cold and they will freeze. Space & Time Space is yet another factor to consider when growing plants. Both the roots and foliage (leaves) need room to grow. Without enough room, plants can become stunted or too small. Overcrowded plants are also more likely to suffer from diseases since airflow may be limited. Finally, plants require time. They do not grow overnight. It takes time and patience to grow plants, some more so than others. Most plants require a particular number of days, months, or even years to produce flowers and fruit. Printer Friendly Version This article was last updated on 01/08/15 Read more about Children's Gardens Did you find this helpful? Share it with your friends! 1693   52   1522     66   80.4K   Related Articles GARDENING TIPS & INFORMATIONWhat Are Stomata: Stoma Plant Pores And How They Work SOIL, FIXES & FERTILIZERSDo Plants Use Carbon: Learn About The Role Of Carbon In Plants CHILDREN'S GARDENSWhat Is Photosynthesis: Chlorophyll And Photosynthesis For Kids Newest Articles PESTICIDES Azadirachtin Vs. Neem Oil – Are Azadirachtin And Neem Oil The Same Thing POTATOES Growing Purple Potatoes: Blue And Purple Potato Varieties BENEFICIAL GARDEN FRIENDS Bee Hazard Labels – What Are Bee Hazard Warnings You might also like… BORAGEBorage Herb: How To Grow Borage CITRUS TREESCitrus Blooming Season – When Do Citrus Trees Bloom BEETSPicking Beets – Learn The Steps To Harvest Beets TOMATOESGrowing Beefsteak Tomato Plants In The Garden Additional Help & Information Read more articles about Children's Gardens. Search for more information Find more gardening information on Gardening Know How: Search Visit Our BlogQ & A Navigate HomeGardensHouseplantsProblemsLawn CareCompostingGardening Help Contact UsAbout UsAdvertisingGardening WritersMediaTerms of UsePrivacy Policy Stay Informed Keep up to date with all that's happening in and around the garden. 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