Can the mountains be on a different planet?

Answer 1

Other rocky planets and moons can have mountain ranges also. The size of the mountains on other planets and moons depends on a variety of conditions such as volcanic activity, composition and surface pressure etc. Mountain height also depend largely on the size of the planet. A planet with a larger mass will have more gravity at the surface and so the mountains wont be able to form to large heights, while a smaller planet will have less gravity, allowing higher mountains to form.