How the Earth's atmosphere was formed?

The atmosphere is the skin of air around the earth. It’s gone through several different stages since the earth formed. The quick version is that the first atmosphere came from volcanoes and was mostly water and carbon dioxide. As it cooled down it rained and made the oceans and a lot of the carbon dioxide dissolved. read more

Earth’s original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed. The Earth and its atmosphere were very hot. Molecules of hydrogen and helium move really fast, especially when warm. read more

Earth's original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed. The Earth and its atmosphere were very hot. Molecules of hydrogen and helium move really fast, especially when warm. read more