# data[].attributes.body
All stars except the sun look like tiny points of light, because of the effect of the earths atmosphere

# data[].attributes.headline
the bright light for stars is made from glowing gas

# data[].attributes.subject
the bright light for stars is made from glowing gas

# data[].attributes.body
source is stars by eymour simon

# data[].attributes.body
Venus is the second planet from the sun and the 3rd brightest object

# data[].attributes.attachment_link.readable_text
Size of Venus compared to the Earth

Side by side comparison of the size of Venus vs Earth

Facts about Venus

Venus is the second brightest natural object in the sky. The planet has an apparent magnitude of -3.8 to -4.6, which makes it visible on a bright, clear day. The Moon is the only other natural object that is brighter.

Venus is sometimes referred to as the "morning star" and "evening star". This dates back to ancient civilizations who believed that Venus was in fact two distinct stars appearing in the sky. When the orbit of Venus overtakes Earth's orbit, it changes from being visible at sunrise to being visible at sunset. They were known as Phosphorus and Hesperus by the Greeks, and Lucifer and Vesper by the Romans.

One day on Venus is longer than one year. Due to the slow rotation on its axis, it takes 243 Earth-days to complete one rotation. The orbit of the planet takes 225 Earth-days - making a year on Venus shorter on day on Venus.

Venus is named after the Roman goddess of love and beauty. This may be, in part, due the brightness of the planet and may date back to the Babylonians in 1581 who referred to Venus as "bright queen of the sky".

Venus is sometimes called Earth's sister planet. This is because their size is very similar (there is only a 638 km different in diameter) and Venus has around 81% of Earth's mass. They are also similarly located with Venus being the closest planet to Earth. Both planets also have a central core, a molten mantle and a crust.

Venus has no moons nor rings.

Billions of years ago, the climate of Venus may been similar to that of Earth and scientists believe that Venus once possessed large amounts of water or oceans. However, due to the high temperatures produce from the extreme greenhouse effect, this water boiled off long ago and the surface of the planet is now too hot and hostile to sustain life.

Venus rotate in the opposite direction to other planets. Most other planets rotate counter-clockwise on their axis, however Venus, like Uranus, rotates clockwise. This is known as a retrograde rotation and may have been caused by a collision with an asteroid or other object which caused the planet to change its rotational path.

Venus is the hottest planet in the solar system with an average surface temperature of 462°C (863°F). Also, Venus doesn't tilt on its axis which means there are no seasons either. The atmosphere is a dense 96.5% carbon dioxide which traps heat and caused the greenhouse effect which evaporated any water sources billions of years ago.

The temperature on Venus doesn't vary much between the night and day. This is due to the slow movement of the solar winds across the surface of the planet.

The estimated age of the Venusian surface is around 300-400 million years old. By comparison, the surface of the Earth is about 100 million years old.

The atmospheric pressure of Venus is 92 times stronger than Earth's. This means that any small asteroids entering the atmosphere of Venus are crushed by the immense pressure, which is why there are no small surface craters on the planet. This pressure is equivalent to being around 1,000 km under Earth's oceans.

Venus has a very weak magnetic field. This surprised scientists, who expected Venus to have a magnetic field similar in strength to Earth's. One possible reason for this is that Venus has no solid inner core, or that its core is not cooling.

Venus is the only planet in the Solar System to be named after a female figure.

Venus orbits the sun in an ellipse, but its orbit is the closest to being a circle out of all the planets in the Solar System.

Venus is the closest planet to Earth. When Venus is in line with Earth and the Sun, it is the closest planet to us, at an average distance of 41 million kilometers (25.5 million miles) away.

More information and Facts about Venus

By the time of the ancient Romans it was understood that Venus was one of four planets other than the Earth. Being the brightest and most visible of these planets, the Romans named Venus after their goddess of love and beauty. As a result of its name, the planet has naturally been associated with love, femininity, and romance throughout history.

It is often remarked that Venus and Earth are twin planets due to their similarity in size, density, mass, and volume. Though these planetary characteristics are relatively the same, Venus and Earth are still substantially different in many other ways (atmosphere, rotation, surface temperatures, and Venus' lacking a moon). If the twin relationship remains, it should be noted that they are not identical.

As with Mercury, our knowledge of Venus has grown considerably during the latter half of the twentieth-century. For example, prior to the several planetary missions conducted by NASA and the Soviet Union beginning in the 1960s, scientists had been hopeful that conditions beneath the extremely dense clouds covering the planet would allow for life. Unfortunately, the data collected during these missions proved that the conditions present were too severe to support life.

Atmosphere

Venus' atmosphere can be divided into two broad layers. The first is the cloud bank that effectively encases the entire planet. The second is everything below these clouds.

The clouds surrounding Venus extend from 50 to 80 kilometers above the planet's surface and are composed primarily of sulphur dioxide (SO ₂) and sulphuric acid (H ₂SO ₄). These clouds are so dense that they reflect 60% of the sunlight Venus receives back into space.

The atmosphere of Venus gives it a light yellowish appearance.

When studying the sub-cloud atmosphere two features are immediately prominent: density and composition. Furthermore, the effect these two features produce on the planet is profound, making Venus the hottest and least hospitable of any planet in the Solar System.

Firstly, with an atmospheric density of approximately , the resulting atmospehric pressure is ninety-two times that found at sea level on Earth. The magnitude of this difference is substantial. To put it in perspective, one would have to travel to a depth of roughly one kilometer beneath the ocean surface to find the same pressure on Earth.

Secondly, the sub-cloud atmosphere's composition is roughly 97% carbon dioxide (CO ₂) with the remaining 3% being primarily Nitrogen (N ₂). Thus, there is an extremely thick zone of carbon monoxide between the high altitude cloud layer and the planet's surface. The outcome of this environment is a very intense manifestation of what is known as the greenhouse effect; that is, heating caused by the atmospheric trapping of solar radiation.

Greenhouse Effect

In the case of Venus, the greenhouse effect begins when small amounts of solar radiation in the form of visible light penetrate the dense cloud layer. Once this radiation is absorbed by the surface, it is converted into heat and emitted back into the atmosphere. At this point, however, the heat is unable to pass back through the carbon dioxide zone as easily as the light. (This is due to the intrinsic properties of the carbon dioxide.) Instead, the heat is absorbed by the carbon dioxide, then radiated in part back toward the planet's surface. The cumulative effect is a constant abundance of heat, which, in turn, causes the surface temperature to remain at a permanent and severe 480° C. This easily makes Venus' surface the hottest of any planet's in the solar system.

Surface

Due to the thick clouds enshrouding Venus, the details of its surface cannot be obtained through simple photographic means. Fortunately, scientists have been able to use the method of radar mapping to acquire this information instead. While both photography and radar imaging work by collecting radiation that has bounced off an object, the difference lies in the forms of radiation collected. Photography collects visible light radiation, and radar mapping collects microwave radiation. The advantage in using radar mapping with Venus is that microwave radiation is able to pass through the planet's thick clouds, whereas the light necessary for photography is unable to do so.

The first radar mappings of the Venusian surface via spacecraft came in 1978 when the Pioneer Venus spacecraft began orbiting the planet. What the resulting maps revealed was a surface consisting primarily of plains formed by ancient lava flows, with only two highland regions, Ishtar Terra and Aphrodite Terra.

In 1990, the Magellan spacecraft began orbiting Venus. In addition to performing radar mapping similar to that of Pioneer Venus, Magellan also undertook a more advanced radar imaging that gathered much finer details. What Magellan found was approximately 1000 impact craters. Interestingly, none of the craters seen were less than 2 km in diameter. This suggest that any meteroid small enough to create a crater having a diameter less than 2 km would have broken apart and burned up during its passage through the dense Venusian atmosphere.

Size Matters

An additional observation regarding the size of the impact craters helped to shed light on the age of the planet's surface. Not only were small impact craters absent on the planet's surface, but also those of large diameter. What this tells us is that the surface has been formed since the period of heavy bombardment, a span of 3.8 to 4.5 billion years ago when a large number of impact craters were formed on the inner planets. Thus, geologically speaking, the Veunsian surface is relatively young.

Finally, the surface's most prominent features are those produced by the planet's volcanic activity. As noted above, the first of these features is the enormous plains caused by ancient lava flows. Covering over 80% of the Venusian surface, these plains are the most dominant feature. The second prominent feature is the surface's volcanic structures, which are numerous and varied. In addition to shield volcanoes similar to those found on Earth (e.g., Mauna Loa), many "pancake" volcanoes have been observed on Venus. These volcanoes, unlike any on Earth, are believed to have formed their distinctive flat, disc-like shape due to an eruption of all of the volcano's lava at once through a single vent. After such an eruption, the lava then spreads outwardly in a uniform, circular manner.

Interior

As with the other terrestrial planets, Venus' interior is essentially composed of three layers: a crust, a mantle, and a core. However, what is intriguing about Venus' interior (as opposed to that of Mercury or Mars) is how alike it is to the Earth's interior. While it is impossible to test the true similarity of the two planets' interiors, it is reasonable to draw such conclusions based on the characteristics the two planets are known to share. Hence, it is believed that Venus' crust is 50 km thick, its mantle 3,000 km thick, and the core has a diameter of 6,000 km.

An unanswered question about the Venusian interior is whether or not the planet's core is liquid or solid. On one hand, because Venus and Earth are so alike, it is reasonable to conclude that since Earth has a liquid core, Venus does as well.

On the other hand, there is also evidence to suggest the Venusian core is solid. This evidence stems from the planet's lacking a substantial magnetic field. Simply put, planetary magnetic fields are a result of the transfer of heat from inside a planet to its surface. A necessary component of this transfer is a liquid core. The argument is since Venus lacks a substantial magnetic field, it cannot possess a liquid core.

Orbit & Rotation

The most notable aspect of Venus' orbit is its uniformity of distance from the Sun. Indeed, with an eccentricity of only .00678, Venus' orbit is easily the most circular of all the planets. Moreover, this small eccentricity means that the difference between Venus' perihelion () and its aphelion () is a mere .

Like information regarding Venus' surface, little data about its rotation could be obtained until the radar imaging missions of the second half of the twentieth-century. Surprisingly, what these missions revealed was just how unique Venus' rotation is.

Whereas the standard rotation for a planet about its axis is counterclockwise (as viewed from the "top" of the orbital plane), Venus' rotation is retrograde or clockwise. The reason for this is presently unknown, but there are two popular theories. The first points to the 3:2 spin-orbit resonance of Venus with the Earth.

Outside Interference

To some, this is highly suggestive that over billions of years the Earth's gravitational force has altered Venus' rotation to its present state. Some scientists, however, doubt that the Earth's gravitational force has been great enough to change Venus in such a fundamental way. Instead, they have looked to the early Solar System when the planets were being formed to provide an explanation. They theorize that Venus' original rotation was similar to that of the other planets', yet it was altered to its current orientation when a large planetesimal struck the young planet with great force, essentially knocking the planet upside down.

A second unexpected discovery regarding Venus' rotation is its speed. Taking approximately 243 Earth days to complete a single rotation, a day on Venus is longer than on any other planet. This alone is noteworthy. What is even more striking, though, is when Venus' day is compared to its year. At roughly 224 earth days, Venus' year is almost 19 earth days less than one Venusian day. Again, no other planet shares such a property. The leading theory for this phenomenon is that which is used to explain the planet's retrograde rotation.

Quick Venus Facts

# data[].attributes.attachment_link.title
Venus Facts: Interesting Facts about Planet Venus * The Planets

# data[].attributes.attachment_link.description
Venus is the second brightest natural object in the sky. The planet has an apparent magnitude of -3.8 to -4.6, which makes it visible on a bright, clear day. The Moon is the only other natural object that is brighter. Venus is sometimes referred to as the "morning star" and "evening star".

# data[].attributes.headline
The mean radius of the body of Saturn is 36,184 miles (58,232 kilometers). However, the giant planet spins swiftly, completing a "day" in just over ten and a half hours. The rapid rotation serves to flatten the planet slightly at the poles while bulging at the equator. All of the gas giants in the solar system bear the same shape of an oblate spheroid, but on Saturn the condition is the most pronounced, with the polar radius (33,780 miles, or 54,364 km) only about 90 percent that of the equatorial radius (37,449 miles, or 60,268 km).

# data[].attributes.subject
The mean radius of the body of Saturn is 36,184 miles (58,232 kilometers). However, the giant planet spins swiftly, completing a "day" in just over ten and a half hours. The rapid rotation serves to flatten the planet slightly at the poles while bulging at the equator. All of the gas giants in the solar system bear the same shape of an oblate spheroid, but on Saturn the condition is the most pronounced, with the polar radius (33,780 miles, or 54,364 km) only about 90 percent that of the equatorial radius (37,449 miles, or 60,268 km).

# data[].attributes.body
is the eighth planet from the sun

# data[].attributes.attachment_link.description
Keep up-to-date with the latest dinosaur science with articles that explore dinosaur habitats, behaviors and body types. Includes range maps and comparisons to present-day animals.

# data[].attributes.body
mercury is the closest planet to the sun.

# data[].attributes.attachment_link.description
Keep up-to-date with the latest dinosaur science with articles that explore dinosaur habitats, behaviors and body types. Includes range maps and comparisons to present-day animals.

# data[].attributes.body
due to their great distance all stars except the sun look like tiny points of light because of the effect of the earth's atmosphere

# data[].attributes.body
juipter orbits the sun about once every 12 years book jupiter

# data[].attributes.headline
where do stars go in the day time. In the day the stars are still there, but you cannot see them because they are so much fainter then the sunlight this is scattered atmosphere.  

# data[].attributes.subject
where do stars go in the day time. In the day the stars are still there, but you cannot see them because they are so much fainter then the sunlight this is scattered atmosphere.  

# data[].attributes.headline
how do stars show up in the sky? well they show up because they bounce around and the they show up in the sky.https://www.spaceanswers.com/deep-space/are-brown-dwarfs-more-like-stars-or-planets/ 

# data[].attributes.subject
how do stars show up in the sky? well they show up because they bounce around and the they show up in the sky.https://www.spaceanswers.com/deep-space/are-brown-dwarfs-more-like-stars-or-planets/ 

# data[].attributes.body
how big is the sun 432,169 mi

# data[].attributes.headline
Dark, cold and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. More than 30 times as far from the Sun as Earth, Neptune is the only planet in our solar system not visible to the naked eye. In 2011 Neptune completed its first 165-year orbit since its discovery in 1846.Neptune is so far from the Sun that high noon on the big blue planet would seem like dim twilight to us. The warm light we see here on our home planet is roughly 900 times as bright as sunlight on Neptune.The ice giant Neptune was the first planet located through mathematical calculations. Using predictions made by Urbain Le Verrier, Johann Galle discovered the planet in 1846. The planet is named after the Roman god 

# data[].attributes.subject
Dark, cold and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. More than 30 times as far from the Sun as Earth, Neptune is the only planet in our solar system not visible to the naked eye. In 2011 Neptune completed its first 165-year orbit since its discovery in 1846.Neptune is so far from the Sun that high noon on the big blue planet would seem like dim twilight to us. The warm light we see here on our home planet is roughly 900 times as bright as sunlight on Neptune.The ice giant Neptune was the first planet located through mathematical calculations. Using predictions made by Urbain Le Verrier, Johann Galle discovered the planet in 1846. The planet is named after the Roman god 

# data[].attributes.body
Why earth is unique? It has 74% of liquid water
https://www.pebblego.com/modules/2/categories/2961/articles/2084

# data[].attributes.body
approximately 318 times as earthhttps://www.space.com/18392-how-big-is-jupiter.html

# data[].attributes.body
how hot is the sun? the sun is 5,778 khttps://www.space.com/24854-how-old-is-earth.html

# data[].attributes.body
http://coolcosmos.ipac.caltech.edu/ask/205-What-are-stars-made-of-

# data[].attributes.headline
altgho planets are coverd with stars around them there is no

# data[].attributes.subject
altgho planets are coverd with stars around them there is no

# data[].attributes.body
subgect of debate.the sorce is S how did neptune form

# data[].attributes.body
earth's temperature is 14c
https://www.universetoday.com/55043/earths-temperature/

# data[].attributes.body
the world is 4.54 billion years old
https://www.space.com/24854-how-old-is-earth.html

# data[].attributes.body
question

# data[].attributes.body
Stars are about 200,000 km across which is a little larger than Jupiter. Our sun is a green blu

# data[].attributes.body
URANUS

The first planet found with the aid of a telescope, Uranus was discovered in 1781 by astronomer William Herschel. The seventh planet from the sun is so distant that it takes 84 years to complete one orbit.URANUS RINGS

Star trails streak across the rings of Uranus in this dramatic image captured by Voyager 2. The combination of unique geometry (it was taken from the highest phase angle at which Voyager imaged the rings) and a 96-second-long exposure reveals lanes of fine dust particles not visible from other viewing angles. These images and others captured by Voyager 2 in 1986 allowed scientists to identify 11 known rings around Uranus.URANUS HAZE

This computer enhancement of a Voyager 2 image emphasizes the high-level haze in Uranus's upper atmosphere. Clouds are obscured by the planet's overlying atmosphere, which is composed primarily of hydrogen and helium. Uranus's blue color comes from a small amount of methane in the atmosphere, which absorbs the red portion of the light that passes through it. Uranus Information and Facts | National Geographic

https://www.nationalgeographic.com/science/space/solar-system/uranus/

# data[].attributes.headline
How many many stars are there in the world?

# data[].attributes.subject
How many many stars are there in the world?

# data[].attributes.body
ps://www.esa.int/Our_Activities/Space_Science/Herschel/How_many_stars_are_there_in_the_UniversehttStars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also!

# data[].attributes.body
We live on a planet called Earth that is part of our solar system. But where is our solar system? It’s a small part of the Milky Way Galaxy.

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle.
When you look up at stars in the night sky, you’re seeing other stars in the Milky Way. If it’s really dark, far away from lights from cities and houses, you can even see the dusty bands of the Milky Way stretch across the sky.

# data[].attributes.headline
stars can be diffrent sizes. The smallest star is the red dwarf. Rigel is estimated to be 62 times as big as the sun.But the biggest star in the universe is thought to be the monster VY canis majoris.

# data[].attributes.subject
stars can be diffrent sizes. The smallest star is the red dwarf. Rigel is estimated to be 62 times as big as the sun.But the biggest star in the universe is thought to be the monster VY canis majoris.

# data[].attributes.body
https://www.universetoday.com/25331/size-of-stars/

# data[].attributes.body
What is under the earth?
the answer...the crust,the Mantle,and the outer core!

# data[].attributes.body
The temperature on Saturn is -178 degrees Celsius.
https://www.universetoday.com/35664/temperature-of-the-planets/