Artist's conception of "Super-Earth" exoplanet Kepler-22b, which is about 2.4 times larger than Earth. Credit: NASA
Things like molten hydrogen and superheated water ice.
It’s like a million degrees right below the surface.
I wonder what the practical use would ever be for discoverng states of matter under conditions so extreme that we could never have access to them. What I find incredible is that planets such as Uranus and Neptune are thought to have oceans of liquid diamond at some point in their interiors, where carbon settles. “Icebergs” of solidified diamond will float one the surface of these, where the temperature is slightly lower, but the pressure is still high enough to keep them from turning to graphite. All forever beyond our reach.
That is a heck for a windage hold for a lazer shot. 1200 years between shots.
*Left 3.5 light years, hold right 7 light years. Did you bring any more beer while we're waiting?