Posts by cometaryorbit
I already read Can a planet survive a supernova? but that just addresses some kind of planet-remnant remaining in orbit. Parameters: Binary system. One component is a Sun-like G-type star with ...
There are craters that are permanently dark at the Moon's poles, since the Moon's axis tilt is so small that the sun never rises above the crater rim. On the Moon these get incredibly cold, since ...
So diamonds are the hardest natural substance, but can be broken/shattered by impacts. If a planet had a large mountain range made of diamond (maybe the size of the Rocky Mountains on Earth), wou...