posted on Feb, 10 2006 @ 06:17 PM
Well, during my half-year university course on cosmology, we studied the Sun. The close-up of the "bubbling" surface of the Sun is the best one in
this thread. Every bubble is called a granule.
Basically, it's like boiling water. You have the same kind of heat-transfers, but with the added strangeness that plasma and magnetic fields bring
(plasma - being what the sun is "made" of - is affected by magnetic fields, and so adds a new depth to the "environment" of the sun that isn't
fully understood). The heat from within escapes along convection currents. This creates the bubble-like granule.
Really the surface is in constant motion, and is constantly changing, and it looks crazy cool. Essentially, though, it's like watching the craziest
pot of boiling water that you've ever seen.
And remember, the Sun isn't really a gas - it's a plasma. The atoms of stripped of their electrons because of the intense heat. The sun itself is
condensed plasma - and so functions like a liquid. So, if you didn't die/vapourize/melt, you could "swim" on the surface of the Sun.
Of course, gravity would pull you down, and you'd then be crushed by the crazy pressures. It's not like you can be bouyant in it.
The real question is, what's the core like? Is it a semi-plasma-solid? Is it like the surface of the sun? I think that's a more interesting
question, but, like trying to observe the surface of the Earth's core, is likely one that we won't really be figuring out any time soon.