This is something we've been hearing about quite a bit lately, especially after the collision last month. Well, these British scientists have some ideas. Watch the incredible video, done by the Guardian. It's about how the European Space Agency-which has done a good job tracking said trash-keeps tabs on the crap left behind in outer space, and what astronauts might be able to do about it.(Sorry for the decoy image-the Guardian's videos aren't on YouTube so you have to watch it on their site. Worth it, though.)