Okay, so, don’t freak out or anything, but Earth’s atmosphere is escaping. Ridiculously slowly, I should say, and there’s no concern that it’ll happen at any point soon. We’re talking billions of years before it’s gone. MinuteEarth breaks it all down in this handy video, but it’s pretty much a problem of our hydrogen and helium trying to get the heck out of here whenever they can.
