Question

How earth's mass is related to its ability to have an atmosphere?

Answer 1

Mass is proportional to gravity and gravity is necessary to hold an atmosphere, therefore mass would seem to be very important for the ability for a body to have an atmosphere. ... The moon Titan is one of the largest moons in the solar system, but it still only has a small fraction of the mass of the Earth.

Answer 2

MASS is proportion to gravity and gravity is necessary to hold an atmosphere, therefore mass would seen to be very important for the ability for a body to have an atmosphere. The moon Titan is one of the largest moons in the solar system, but it still only has a small fraction of the mass of the Earth.