What is underneath the gas of the giant gas planets?

Question

Jupiter, Saturn, Uranus, Neptune.....what if you were able to fly a craft thorugh the gas atmosphere, would you ever hit land of some sort?

Answer 1

Sort of, but not land like anything you'd see on Earth. Jupiter has a small rocky core, covered in a layer of metallic hydrogen (which can only exist at intense pressures), surrounded by liquid hydrogen, and finally the gaseous hydrogen that makes up its familiar "surface." The interior of Saturn is very similar. Uranus and Neptune also have rocky cores, but lack metallic hydrogen. In addition, their composition has a greater variety, containing mostly gases, but not just hydrogen. In a sense, all four consist of relatively small rocky planets, or "landmasses" if you like, surrounded by vast seas of gaseous substances.

Answer 2

Bubble-gum...


No seriously, on the average, the large planets may contain a rocky core, of sorts, (it would not be "rock" due tot he temperatures caused by the pressure. A majority of the core would consist of metallic versions of elements....ie-Metallic Hydrogen in Jupiter.

Answer 3

In the middle of these planets there is a big rocky core. This core has to be big in order to hold onto all the gases surrounding it. The cores of these planets could be bigger than Earth.