Just before it disintegrated, space shuttle Columbia experienced an abnormal ... crew operations at the Johnson Space Center, said remains from all seven of the astronauts had been found.

(CNN) --The space shuttle Columbia, lost with its seven-person crew in a catastrophic re-entry accident on Saturday, was considered for retirement in 2001. The oldest orbiter in the fleet ...

MIAMI, Florida (CNN) -- A NASA report on the last minutes of Space Shuttle Columbia ... the legacy of Columbia and her heroic crew continues to be the improved safety of future human spaceflights ...

The ceremony paid homage to Columbia’s seven along with the seven who died on Space Shuttle Challenger on Jan ... these ...

NASA marked the 20th anniversary of the space shuttle Columbia tragedy with somber ceremonies and remembrances during its annual tribute to fallen astronauts on Thursday. More than 100 people ...