why is the moon round?
In: 0
All bodies above a certain size are. If it wasn’t round it’s own gravity would be strong enough to pull the parts that are higher up down until all surface has an equal distance to the center (and a sphere is the only shape that permits that)
Smaller objects can be hard enough to prevent that. But the bigger something is the stronger the gravity gets and then no material can withstand that force.
As an example a cube shaped moon would technically have mountains that have a height of ~1000km. The pressure in the stone would be so big that it simply deforms like a liquid
Latest Answers