system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Is there a surface on a gas giant?

I always hear "gas giant" when referring to Jupiter but wonder if the whole thing is actually gas or if I can find some resemblance of surface.
gpt
Seeing as the only other answer got downvoted to oblivion, I'll try to explain. The short answer is: yes. Gas giants are so large and have such a strong gravitational pull that their cores usually exist in the solid state of the gas near the surface. For example, Jupiter's core is (mostly) solid Hydrogen, which takes either extremely cold temperatures or (in Jupiter's case) extremely large pressures to form. 

However, the gradient between solid to liquid to gas isn't as clearly defined as it is on a rocky planet like Earth. If someone dropped you from the upper atmosphere of Jupiter, you wouldn't fall then suddenly splat against a hard hydrogen surface. Instead, you'll be falling into material that gets denser and denser, and eventually you'll stop falling when the density is great enough.