8 Things You Didn't Know About Extrasolar Planets

While most of us have our eyes on Mars at the moment, there's a special class of astronomers who have their telescopes trained on planets a little bit farther away. Actually, a lot farther away - completely outside our solar system, in fact. We've found almost 300 extrasolar planets (or exoplanets) so far, and the… » 5/27/08 8:00am 5/27/08 8:00am