Leland Melvin with his dogs, Jake and Scout. "I snuck them into NASA to get this picture," Melvin says. Courtesy of Leland Melvin hide caption

itoggle caption Courtesy of Leland Melvin

Food packets containing the astronauts' "all-American meal," including (clockwise from top left) corn, chicken, brisket, and beans, along with a lemonade, at right. Devin Boldt/NASA - JSC hide caption

itoggle caption Devin Boldt/NASA - JSC

The space shuttle Atlantis docked to the International Space Station in May 2010. NASA has announced that Atlantis will fly one last mission in June 2011 before retirement. NASA/Getty Images hide caption

itoggle caption NASA/Getty Images