Top 10 Astronomical Discoveries

This isn't a deep-thinking astronomical site, but it's a very nice, brief, well-illustrated list of the ten most amazing discoveries of modern astronomy. They include General relativity, exoplanets, gamma ray bursts, black holes, the age of the universe, the Big Bang theory, redshifting, cosmic microwave background radiation, and those crazy twins, dark energy and dark matter, both of which still have plenty of "what the hell?" aspects to them.