At 1:52 AM EDT on July 4th, a copper probe going 23,000 miles per hour crashed into the comet Tempel 1, located 83 million miles from earth. The probe was launched from Deep Impact, and the $333 million dollar mission considered a success. NASA scientists were jubilant. The goal was to learn what comets are made of, so information will be forthcoming over the next few days, weeks, months. The spacecraft launched on January 12, 2005. Details about the mission can be found at National Aeronautics and Space Administration (NASA's) mission page. Photos are here.
83 Million Miles from Here- NASA's successful Comet Crash
