Scientifically impossible... outer space vacuum
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Ah, no. The Earth's gravitational field provides exactly that. It pulls gas molecules to the planet. Yes, some escape but the majority are kept tight to Earth.
Consider the Sun. it is a big ball of gas. Why then doesn't it all evaporate and the Sun become smaller and go out? Because the gravitational field creates, effectively, an invisible 'force' container.
Where is the earth's gravitational field? I would like to see some proof of this existing. Also why does helium rise up when earth's gravity supposedly pulls molecules down?
I would like to see a PHOTOGRAPH of earth from space.