planet help?

Question

are the outer gas planets pure gas do thay have any rocky surface at all ???

Answer 1

Wow, what a question...Actually the gassy planets you refer to have a hard core, but not a rocky surface. The gas on most of these planets is collected into a ball (if you will) and the center of the ball is under intense pressure from the planet's own gravity. That pressure converts the gas below the surface into a liquid state. Farther down into the depths of the gassy planet, the liquid is under such intense pressure that it forms something like a "metallic" gas core which is intensely hot. We have nothing to compare that to here on Earth because we have no gases under that much heat and pressure, except possibly down near the core of the Earth, and nobody has been there.

Answer 2

Gas Giant - meaning unlike Earth and the inner planets, it is composed mostly of gas with no solid surface to speak of. As a result, its average density is only about a quarter of that of Earth and other "rocky" planets."

Definition of a planet for the other answerer:

1) Is spherical
2) Orbits the Sun
3) Clears its surroundings of large debris

Answer 3

At this point its unclear what kind of surface they have--pressure and conditions really deep down are so extreme scientists aren't really sure if there's a "surface" the way we think of it, or just a gradual transition to asolid materiel. But they do have rocky cores.

Answer 4

I don't think we know that answer for sure. There is likely some solid material at the core, though how much we don't know (it doesn't appear to be much).

http://www.solarviews.com/eng/jupiter.htm

Answer 5

It aint a planet,if it's all gas!