Space Shuttle Columbia disaster

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

Credit: NASA