Delta4Embassy
Gold Member
It's just leaking off into the vaccuum of space! Seriously. It is. ...Well ok in a manner of speaking anyway. 
What keeps Earth s atmosphere on Earth Earth EarthSky
"And yet, although you might not realize it or think about it, Earth does continually lose some of its atmosphere to space. This loss occurs in the upper atmosphere, over billion-year time scales."
What keeps Earth s atmosphere on Earth Earth EarthSky
"And yet, although you might not realize it or think about it, Earth does continually lose some of its atmosphere to space. This loss occurs in the upper atmosphere, over billion-year time scales."
