oscar_lai_hk Messages 12 Reaction score 0 Thread starter Nov 29, 2007 #1 What keeps the atmosphere of a planet in place? THZ
Integral Staff Emeritus Science Advisor Homework Helper Gold Member Messages 7,232 Reaction score 66 Nov 29, 2007 #3 Note that the temperature of our atmosphere high enough that the average velocity of the lighter gases, Hydrogen and helium, is greater then the Earth's escape velocity. Thus we do not find them in our atmosphere.
Note that the temperature of our atmosphere high enough that the average velocity of the lighter gases, Hydrogen and helium, is greater then the Earth's escape velocity. Thus we do not find them in our atmosphere.