Do the gas giants, Uranus and Neptune even have a surface? If so, what would it be like to stand on it.
2007-05-02 06:30:35 · 3 answers · asked by North_Star 3 in Science & Mathematics ➔ Astronomy & Space
Yes, they have surfaces -- way down there somewhere. In both cases there's a deep layer of liquid hydrogen there, but eventually you'd find what is believed to be the rock and ice below on Neptune... likely a lot sooner than you would on Uranus whose solid surface seems further down yet.
Suprisingly, you'd feel a bit heavy on Neptune, but not crushed. Gravity there is just 119% of that at home here on Earth. Imagine weighing 19% more than you do now. That's because it's so large that you're already considerably further from its center of mass than you are here.
You'd feel less heavy on Uranus than home at just 91% of Earth gravity. There, however, you'd have to go a LONG way to come up with something you could call a "core" surface.
As hydrogen is liquid there, you can understand that both are EXTREMELY cold (just below -200C!), and Neptune has 1000mph winds. Some wind chill, eh? You really couldn't "stand" on either of them. You could float in the liquid hydrogen above the "surface" if you could keep from turning into a popsicle.
2007-05-02 06:35:11 · answer #1 · answered by C Anderson 5 · 0⤊ 0⤋
Your bones and cellular material wouldn't have a chance and "crush" would be too nice a way to decribe it. If they do have a surface near their cores the pressure, gravity, heat, and super fast winds would do unimaginable harm before you evaporated and actually became part of their atmospheres.
2007-05-02 06:37:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
They have no surface. It's just gas.
2007-05-02 06:34:50 · answer #3 · answered by Gene 7 · 0⤊ 0⤋