The End of Helium Balloons

Sophia hayes: helium doesn't stay here on earth. As soon as we've let it go, it's truly gone forever. Does that mean that we couldgo get some from space, if it sort of all ous up there? Wouldn't that be terrific? But of course, out in outer space it's just so dilute. And even though there's helium up there, it would be so hard for us to collect an atom at a time again. So i'll keep on admiring helium balloons from afar for now. That was sophia hayes, helium a precious resource indeed. Now is joseph cotruvo. He's working on techniques