NASA Shuttle Launches (70 images)

NASA's Space Shuttle Atlantis sits on Launch Pad 39A at the Kennedy Space Center, Florida on December 6, 2007 once launch controllers stopped the countdown after noticing a problem with fuel sensors. The sensors control the shuttle's command to shut down the main engines after launch. NASA has tentatively rescheduled the launch for Dec 7 at 4:09 PM. (UPI Photo/Joe Marino-Bill Cantrell)

NASA announced plans for a shuttle mission to service the Hubble Space Telescope, shown in this NASA file photo, during a closed briefing at the Goddard Space Flight Center in Greenbelt, Maryland on October 31, 2006. The shuttle mission, SM4, is planned for May 2008 with the main goal of servicing the Hubble by installing new equipment, batteries and gyros, in order to keep it operational through 2013. (UPI PHOTO/NASA)

Space Shuttle Atlantis sits poised on Launch Complex 39B at the Kennedy Space Center, Florida on the evening of September 5, 2006. Atlantis is scheduled for launch at approximately 12:30 PM on September 6. Its primary mission for the International crew is to resume construction of the International Space Station. (UPI Photo/Joe Marino-Bill Cantrell)

NASA's Space Shuttle Atlantis launches with a crew of seven at 2:45 PM from Launch Complex 39A at the Kennedy Space Center, Florida on February 7, 2008. With Atlantis' successful launch to orbit on mission STS 122, the crew will prepare for Saturday's docking with the International Space Station and deliver the European Space Agency's Columbus module to the orbiting laboratory. (UPI Photo/Joe Marino-Bill Cantrell)