Space Shuttle Endeavour Launches (at last)
mumkin writes: "Hey, STS-108 has finally launched! In addition to bringing a new crew to the International Space Station and performing an EVA, Endeavour will be releasing Starshine 2, another orbiting disco-ball for ground-based observers to track."
In addition to the things already mentioned, the shuttle also has 6000 American Flags, which when returned from space, will be given to the members of the families of the World Trade Center victims.
Go to Heavens-Above and enter your location on earth, and it'll provide you with all the info you need to spot the ISS, the Shuttle, and a host of other orbiting objects as they pass over you before sunrise or after sunset. The site has a wealth of other information about satellites and space exploration in general as well, so it is with a very heavy heart that I expose one of my absolute favorite sites to the eminent threat of slashdottery.