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Not a lot.

Occasional stars, occasional dust and gas clouds.

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If the pieces were big enough they could hang on

to some gases

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If so, you would need a lot of

crackers to go with it.

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It depends on where Earth & Jupiter are in their

orbits. Sometimes it's closer, sometimes further

away. Also, you wouldn't go in a straight line.

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Easy. Don't go near a black hole.

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how long would it take to travel to jupiter by a plane?

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If Earth split up into pieces,

would it still have an atmosphere or would the pieces have there own atmospheres?

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what would you have to do to survive a black hole

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is the moon made of cheese

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what is in the spaces between galaxy's?

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Without the Sun, all the planets

(including Earth) would be lumps

of cold rock in the middle of nowhere.

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Why do other planets (not earth) need the sun??

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Tricky.

The word "universe" means "everything",

so you could say the answer is no.

Even if we could, it would take a LONG

time to get to the edge - if it even has

an edge.

There might be other universes. But we don't

really know what that statement means!

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Answer the Challenge Question at http://www.physicscentral.com/sots for cool prizes! NASA Astronaut Don Pettit uses his off-duty time to practice his microgravity yo-yo skills.

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Wind is moving air. So no - unless

you count "solar wind" - streams

of high-energy particles from

the Sun.

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Why cant we travel outside our universe?

is it just because it would take too long?

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can you use yoyos in space?

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Is there wind in Space?? :)

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Pretty much, yes. Hydrogen undergoing

nuclear fusion to make Helium, and releasing

HUGE amounts of energy as it does so.

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There are around 100 billion stars in the Milky Way (our galaxy).

The smallest is a red dwarf called OGLE-TR-122b.

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by Jonathan O'Callaghan, 22 March 2013

Josh Barker from the National Space Centre answers this one for us.

This question has two different answers so we will try and explore both of them. First of all, for an object to qualify as a star it has to be a ball of gas large enough that fusion is triggered at its core. We think for this to happen the object would need to have at least 80 times more mass than the planet Jupiter. This fits with what we have seen out in our universe. Currently the smallest star we have found is called OGLE-TR-122b. This star is around 96 times more massive than Jupiter. We call this type of star a red dwarf.

The other side to this answer involves a star that is at the very end of its life. The type of star we will discuss now was once one of the biggest stars we know of. When a very large star runs out of fuel, the core stops reacting and the force holding the star up ceases, causing it to collapse. As all this material comes crashing down, the core of the star gets compressed. If the star is large enough then the core gets compressed until even the atoms inside are squashed together. This leaves a huge ball of neutrons. This material forms some of the densest material we know of. These compressed cores can contain as much as twice the material in our sun, squashed down to less than 20 kilometres (12.4 miles) across.
Answered by Josh Barker from the National Space Centre Image courtesy of NASA

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What is the smallest star? | Space Facts - Astronomy, the Solar System & Outer Space | All About Space Magazine

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by Jonathan O'Callaghan, 22 March 2013 Josh Barker from the National Space Centre answers this one for us. This question has two different answers so we will try and explore both of them. First of all, for an object to qualify as a star it has to be a ball of gas large enough that fusion is triggered at its core.

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It would really spoil your day.

The Earth is mainly molten, with a very thin

solid skin (think of the skin on a hot rice

pudding). Anything that splits that skin is bad news.

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Possible, but unlikely.

In Chemistry we learn about the Periodic Table and why

it's that shape - because the elements all fit together in

a sequence with no gaps.

Having said that, there may well be very heavy elements

"off the far end" of the table. But nearly all of them would

be very unstable and therefore very rare.

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Why is pluto not a planet

and

what is it now

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Is the biggest star in the universe made of the same stuff as our sun?

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How many stars are there in our galaxy? And which of them is the smallest?

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what would happen if the world split in half?

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Is it possible that there are other elements

on far away planets that we haven't discovered yet?

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We discovered a whole lot more small

objects out there, and in 2006 decided that

Pluto didn't count after all. So we invented the

name "dwarf planet" for all those objects. Shame!

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Why is Pluto not a planet?

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How Pluto was discovered

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In a historical photo, Percival Lowell looks through the Clark telescope at Lowell Observatory, Flagstaff, Arizona. File photo undated.

Credit: Lowell Observatory

Lowell Observatory, founded in 1894, is perhaps best known for the discovery of Pluto, but that is not the facility's only contribution to astronomy. Astronomers there have studied Halley's Comet, and the observatory led the discovery in 2007 of an exoplanet. Lowell operates several research telescopes, including the original Clark Telescope, and the observatory recently added an advanced instrument called the Discovery Channel Telescope.

The observatory was founded by astronomer Percival Lowell. Lowell picked Flagstaff, Ariz., for his observatory, believing that the high altitude and thin atmosphere would be ideal for observing Mars. Lowell became famous after saying he saw canals on Mars through a telescope. This was later refuted with close-up images of the Red Planet, but Lowell's astronomical legacy persists in the form of the observatory.

Clyde Tombaugh, discoverer of Pluto, peers into an instrument.

Credit: Lowell Observatory

As it turned out, the observatory became better known not for studying Mars, but for finding Pluto. More than a generation later, Clyde Tombaugh joined the observatory's ongoing search for Planet X. Scientists found discrepancies in Neptune's orbit, and believed a larger planet could still be lurking in the outer solar system.

Using photographs taken with a 13-inch telescope (now called the Pluto Discovery Telescope), which was funded by Percival's brother, Abbott Lawrence Lowell, Tombaugh saw movement between different frames on Feb. 18, 1930.

It was a tiny world called Pluto. Once considered a planet, Pluto was demoted to dwarf planet status in 2006 after icy worlds of a similar size were found in the outer solar system.

Lowell Observatory also contributed to the discovery of Pluto's atmosphere, as well as determining accurate orbits for Pluto's moons Nix and Hydra. [Related: New Horizons' Pluto Flyby: Latest News, Images and Video]

Besides planetary studies, the observatory is also known for its work on Halley's Comet. During the comet's last appearance in 1985/86, the observatory led work concerning the comet's production of dust and ice as Halley's got closer to the sun.

The observatory's discoveries also include a lot of research on stars.

"Former director John Hall and his colleagues, for example, made detailed studies of the energy output of stars, while astronomer Harold Johnson created one of the fundamental calibration scales of stellar temperature in the 1950s," the Lowell Observatory wrote on its website.

The Discovery Channel Telescope dome with the Moon overhead. Photo taken April 17, 2012.

Credit: Len Bright/Lowell Observatory

"The late Henry Giclas, who spent his entire career at Lowell, conducted one of the largest surveys of stellar motions ever done. And, for decades, Wes Lockwood and his colleagues have measured the slowly varying brightnesses of stars like the sun."

More recently, Lowell led the 2007 discovery of what was then the largest known exoplanet: TrES-4, a " puffy" world about 1.7 times the size of Jupiter.

"Its mean density is only about 0.2 grams per cubic centimeter, or about the density of balsa wood," said study leader Georgi Mandushev of Lowell, speaking at the time of the discovery. "And because of the planet's relatively weak pull on its upper atmosphere, some of the atmosphere probably escapes in a comet-like tail."

The observatory today includes three sites in Arizona operating with an annual budget of about $6 million. Lowell is promoted as a good location to do long-term studies of astronomical phenomena that may not be apparent in just a few nights of telescope time.

Lowell's advanced age leads to a constant need for upgrades. For one effort - restoring the original 24-inch (0.6 meter) refracting Clark Telescope - officials launched a crowdfunding campaign in March 2013, aiming to raise $256,718 in two months.

Lowell's most recent instrument, the privately funded Discovery Channel Telescope, saw first light in 2012. The 14-foot (4.3-meter) telescope takes visible light and spectrographic images at the same time. Some research questions being investigated include how dwarf galaxies came to be, and how the solar system began.

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Lowell Observatory: Where Pluto Was Discovered

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Lowell Observatory, founded in 1894, is perhaps best known for the discovery of Pluto, but that is not the facility's only contribution to astronomy. Astronomers there have studied Halley's Comet, and the observatory led the discovery in 2007 of an exoplanet.

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Please don't ask any of these!

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what the biggest star in the universe??