NASA administrator Charles Bolden addresses Kennedy Space Center employees and contractors as space shuttle Atlantis (STS-135) sits in the background near the Orbiter Processing Facility (OPF) at a wheels stop event, Thursday, July 21, 2011, in Cape Canaveral, Florida Atlantis returned to Kennedy early Thursday following a 13-day mission to the International Space Station (ISS) marking the end of the 30-year Space Shuttle Program.
Paul E. Alers
2011-07-21
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