The conversation between human and AI assistant.
Why is the earth so flat?
Wow, I never considered the influence of the moon and the sun. Is the earth shape unique compared to other planets in our solar system?
Actually, many planets in our solar system have similar shape deformations caused by centrifugal forces and gravitational forces of nearby objects. Some planetary bodies, like asteroids and comets, have more irregular shapes due to their smaller size and weaker gravitational forces.