Space shuttle Atlantis (STS-135) Commander Chris Furgeson, at podium, is flanked by his crew pilot Doug Hurley, right, and mission specialists Rex Walheim and Sandy Mangus, left, as he addresses employees and contractors gathered at a wheels stop event at NASA's Kennedy Space Center, Thursday, July 21, 2011, in Cape Cape Canaveral, Fla. Atlantis returned to Kennedy early Thursday following a 13-day mission to the International Space Station (ISS) and marking the end of the 30-year Space Shuttle Program. Overall, Atlantis spent 307 days in space and traveled nearly 126 million miles during its 33 flights. Atlantis, the fourth orbiter built, launched on its first mission on Oct. 3, 1985. Photo Credit: (NASA/Paul E. Alers)