Its really weird that they r made of gas (the planets)...didnt U ever thought about that?
2006-10-19 12:57:00 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The solar system basically started as gas and dust. The outer planets formed from gas and the dust and solids seem to have concentrated closer to the sun (also made of gas).
So far just about every planet we've found outside the solar system is made of gas. So actually rocky planets are wierd.
They usually have solid or liquid cores btw.
2006-10-19 13:01:33 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It's all in the name: Gas planets are made of gas. However, due to the size of these planets, the pull of their own gravity and the pressure this exerts on the gas, the gas has actually become a liquid. At deeper depths, at higher pressure, this liquid turns into a liquid metallic form. It is also suspected these planets have a rocky core.
They formed in this way as there was much more gas in these further reaches of the solar system compared to the terrestial world region.
2006-10-19 22:27:00 · answer #2 · answered by gfminis 2 · 0⤊ 0⤋
As the nebula collapsed in a swirl, more gas and dust was available closer to the center which became the sun. Since gas particles have less inertia, they were more susceptable to the gravitation force at the center and removed from the dust more quickly in a kind of gravitational filter effect, which explains why gas got to the center and formed the sub first. As the gas was filtered from the nebula, more dust was available to form rocks as a result of its own developing gravitational force. Developing rocks on the outer edges of the nebula developed so much momentum that they were able to escape the weaker gravitational forces of the sun and move out of orbit and become asteroids. Gas, with less momentum was still available to form planets on the outer edges of the solar system. This is not to say that rock based planets moving at slower speeds, like Pluto, could not remain in orbit.
2006-10-19 13:43:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Yes, both of the gas giant planets Jupiter and Neptune consist of mostly gas , but they do have a rather small rocky core.
2016-03-28 01:57:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It's believed that the center of gas planets does have a tiny rocky core, though.
* Jupiter is 86% hydrogen.
* Saturn is 96% hydrogen.
* Uranus 83%
* Neptune 80%
2006-10-19 13:01:53 · answer #5 · answered by icez 4 · 1⤊ 0⤋
Because they are gases that doesn't mean that they are as light as you think.
Don't sonsider the earthly conditions that gas is spreading around.
Elements can be in the form of gases and there are forces between their molecules. Smaller than of the solid matter but strong enough to form planets, as we can see.
2006-10-19 13:03:29 · answer #6 · answered by Ioanna 2 · 0⤊ 0⤋
Not really, they are made up of leftover hydrogen and heiliun from the suns formation. They have no surface because they are made mainly of gas
2006-10-19 13:00:17 · answer #7 · answered by Anonymous · 0⤊ 0⤋
'gas planets' are never completely made, in a manner of speaking, they are a continuously combusting and reacting ball held together by its own chemical reactions.
2006-10-19 13:02:42 · answer #8 · answered by Poukha 1 · 0⤊ 0⤋
The gas giants do have a rocky, meatllic core.
2006-10-19 13:02:50 · answer #9 · answered by Sentinel 3 · 0⤊ 0⤋
Hi. The core of Jupiter is thought to be partially composed of metallic hydrogen. That's not a typo. http://csep10.phys.utk.edu/astr161/lect/jupiter/interior.html
2006-10-19 13:07:50 · answer #10 · answered by Cirric 7 · 0⤊ 0⤋