In this NASA photo, NASA crash investigators place debris from the Space Shuttle Columbia on a grid on the floor of a hangar on March 4, 2003 at the Kennedy Space Center in Florida. NASA is attempting to reassemble debris from the shuttle to learn what caused Columbia to break up during reentry. NASA Mission Control lost contact with the Space Shuttle Columbia during the reentry phase of mission STS-107 on February 1, 2003 and later learned that the shuttle had broken up over Texas. Debris from the wreckage drifted hundreds of miles from central Texas to Louisiana. All seven astronauts onboard the Shuttle died in the crash.