Endeavour landed safely at Kennedy Space Center, wrapping up its final mission to space before becoming the next to last U.S. shuttle to retire.

U.S. space shuttle Endeavour comes in to land at Kennedy Space Center on June 1, 2011. Endeavour landed safely at Kennedy Space Center, wrapping up its final mission to space before becoming the next to last U.S. shuttle to retire. The spacecraft touched down at 2:34 a.m. ET at the end of a nearly 16-day mission to the International Space station. (Xinhua/Reuters Photo)

The crew of space shuttle Endeavour (L to R) European Space Agency astronaut Roberto Vittori, pilot Gregory Johnson, commander Mark Kelly, mission specialist Michael Fincke, mission specialist Greg Chamitoff and Andrew Feustel wave after landing at the Kennedy Space Center in Cape Canaveral, Florida June 1, 2011. The spacecraft touched down at 2:34 a.m. ET at the end of a nearly 16-day mission to the International Space station. (Xinhua/Reuters Photo)

U.S. space shuttle Endeavour comes in to land at Kennedy Space Center on June 1, 2011. Endeavour landed safely at Kennedy Space Center, wrapping up its final mission to space before becoming the next to last U.S. shuttle to retire. The spacecraft touched down at 2:34 a.m. ET at the end of a nearly 16-day mission to the International Space station. (Xinhua/Reuters Photo)

U.S. space shuttle Endeavour comes in to land at Kennedy Space Center on June 1, 2011. Endeavour landed safely at Kennedy Space Center, wrapping up its final mission to space before becoming the next to last U.S. shuttle to retire. (Xinhua/Reuters Photo)

U.S. space shuttle Endeavour comes in to land at Kennedy Space Center on June 1, 2011. Endeavour landed safely at Kennedy Space Center, wrapping up its final mission to space before becoming the next to last U.S. shuttle to retire. (Xinhua/AFP Photo)

U.S. space shuttle Endeavour comes in to land at Kennedy Space Center on June 1, 2011. Endeavour landed safely at Kennedy Space Center, wrapping up its final mission to space before becoming the next to last U.S. shuttle to retire. (Xinhua/AFP Photo)

U.S. space shuttle Endeavour comes in to land at Kennedy Space Center on June 1, 2011. Endeavour landed safely at Kennedy Space Center, wrapping up its final mission to space before becoming the next to last U.S. shuttle to retire. (Xinhua/AFP Photo)

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