See the timeline of events relating to the shuttle Columbia tragedy and investigation.
NASA lost communication with space shuttle Columbia and the orbiter did not appear in the skies over Central Florida.
Following 16 days of intense, around-the-clock science research the seven-member Columbia crew on Friday shut down experiments.
Temperatures within the Spacehab laboratory inside space shuttle Columbia are running higher than normal.
Payload specialist Ilan Ramon will make history as Israel's first astronaut aboard shuttle Columbia.
Astronauts and flight controllers responsible for space shuttle Columbia's upcoming mission said they are ready to go.
All you had to do was hear Jim Lovell's voice and you knew it was something bad. Apollo 13 was in trouble.
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