I came across an interesting three-part series of blog posts on astronomy over at Discover Magazine's Bad Astronomy blog (the original Bad Astronomy is now hosted by Discovery). Anyhoo... the author, Phil Plait, talks about ten things you may or may not know about the Milky Way, the Earth and Black Holes. All of the posts are done in a humorous, irreverent style for those of you who can't take your astronomy straight. ;) For example:
The biggest is called Cruithne (pronounced MRPH-mmmph-glug, or something similar).