gravity is not responsible for atmosphere. something else is.i was wondering what it was?
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gravity is not responsible for atmosphere. something else is.i was wondering what it was?
Gravity is not responsible for the formation of the atmosphere; however, it is responsible for the retention of the atmosphere.
venus is smaller than earth.yet atmospheric pressure is 90 percent of that of earth
what is the relation.even the moon titan has dense atmosphere with a diameter of only about 5500 km.if titan could have such an atmosphere why not mars(as mars is bigger than titan) i just happened to see a reply which says that even if terraformed mars would not be able to retain atmosphere?
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Originally Posted by parag1973
Much atmosphere comes from volcanic action, as in Titan and Venus (which has lots of sulphur in it's atmosphere. It also depends what it can hang onto and gravity/density helps in this. With the Earth we have the Moon which must be slowly leeching our atmosphere away.
Wouldn't the gases from the sun be responsible for the atmosphere? I mean the fusion of hydrogen... The fusion to create all other elements of less atomic mass than iron? Plus, the solar wind blows it. Then, the Earth catches some of it? ATOMOSPHERE! Or... plants came into existence millios of years ago, converted the CO2 to O and C2. Then the fish evolved got out of water and then you know. But, that parts for another topic.
Venus is smaller than the earth, yes, but it has about the same gravity.Originally Posted by parag1973
Titan has all sorts of interesting volcanoes and things to add gasses to the atmosphere from within the planet. As for terraforming Mars, it's true that any atmosphere that we added would eventually be lost, but it would take millions of years. People normally think of terraforming as a project that would last hundreds or thousands of years, so it wouldn't really be a problem.even the moon titan has dense atmosphere with a diameter of only about 5500 km.if titan could have such an atmosphere why not mars(as mars is bigger than titan) i just happened to see a reply which says that even if terraformed mars would not be able to retain atmosphere?
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