Columbia

 
columbia crew .jpg

On February 1, 2003, the Space Shuttle Columbia disintegrated upon reentering Earth's atmosphere, killing all seven crew members: David M. Brown, Laurel Clark, Michael P. Anderson, Ilan Ramon, Rick D. Husband Kalpana Chawla, William C. McCool

During the launch of STS-107, Columbia's 28th mission, a piece of foam insulation broke off from the Space Shuttle external tank and struck the left wing of the orbiter.  When Columbia re-entered the atmosphere of Earth, the damage allowed hot atmospheric gases to penetrate and destroy the internal wing structure, which caused the spacecraft to become unstable and break apart.