When you look up at the stars, what do you think about? That we may be not be alone? The vastness of it all?
There's a lot to wonder about space. The fact is we don't know all the answers about it. We know it's vast and beautiful, but we're not really sure how vast (or how beautiful, for that matter).
Some of the things we do know, however, are downright mind-boggling. Here, we've collected some of the most amazing facts about space, so when you look up at the stars you can be ever more wowed by what you're looking at.
Topics NASA
