Hall of Fame astronaut Hank Hartsfield thanks the audience for its applause at the 2009 U.S. Astronaut Hall of Fame induction ceremony at NASA's Kennedy Space Center Visitor Complex in Florida. The ceremony took place May 2. More than 20 hall of fame astronauts attended, including Scott Carpenter, Walt Cunningham, Jim Lovell and Bob Crippen. Photo credit: NASA/Jim Grossmann