What keeps the atmosphere of a planet in place?

oscar_lai_hk

What keeps the atmosphere of a planet in place? THZ

russ_watters

Gravity.

Integral

Note that the temperature of our atmosphere high enough that the average velocity of the lighter gases, Hydrogen and helium, is greater then the earths escape velocity. Thus we do not find them in our atmosphere.

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oscar_lai_hk	What keeps the atmosphere of a planet in place? Tweet What keeps the atmosphere of a planet in place? THZ

Integral Mentor Blog Entries: 9	Note that the temperature of our atmosphere high enough that the average velocity of the lighter gases, Hydrogen and helium, is greater then the earths escape velocity. Thus we do not find them in our atmosphere.