Shuttle's final salute caps off 30 years of Discovery (51 images)

NASA's Space Shuttle Discovery flew it's final flight on April 17, 2012, soaring over Washington, D.C. on it's way to a permanent installation at Dulles International Airport. After 30 years, NASA ended the space shuttle program last summer.
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NASA's Space Shuttle "Discovery" launches on its final mission, STS 133, at 4:53 PM from Complex 39A at the Kennedy Space Center on February 24, 2011. UPI/Joe Marino-Bill Cantrell
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