Columbia space shuttle tragedy

The crew of the Space Shuttle Columbia for mission STS-107, in the first row, Pilot William "Willie" McCool (L) and Commander Rick Husband (R), second row are Mission Specialists Kalpana Chawla (left) and Laurel Clark (R) in the last row, Payload Specialist Ilan Ramon, Payload Commander Michael Anderson and Mission Specialist David Brown walk to the launch pad on January 16, 2003 at Kennedy Space Center at Cape Canaveral, Florida. Mission STS-107... more 

The crew of the Space Shuttle Columbia for mission STS-107, in the first row, Pilot William "Willie" McCool (L) and Commander Rick Husband (R), second row are Mission Specialists Kalpana Chawla (left) and Laurel Clark (R) in the last row, Payload Specialist Ilan Ramon, Payload Commander Michael Anderson and Mission Specialist David Brown walk to the launch pad on January 16, 2003 at Kennedy Space Center at Cape Canaveral, Florida. Mission STS-107 is a 16-day scientific mission. (Photo by NASA/Getty Images) less