The Columbia space shuttle was destroyed during reentry on February 1, 2003, and all seven astronauts aboard were killed. The accident was caused by foam insulation breaking off during launch and damaging the orbiter’s left wing, which let superheated gases enter during reentry and destroy the spacecraft.

What happened

Columbia was on STS-107, a 16-day science mission, when it broke apart over Texas and Louisiana as it came back to Earth. NASA later found that the heat shield on the left wing had been compromised by launch damage, and the vehicle disintegrated in the atmosphere.

Why it mattered

The disaster ended the crew’s mission and led NASA to suspend shuttle flights for more than two years while investigators examined the cause and changed safety practices. It remains one of the most serious tragedies in U.S. spaceflight history.

If you want, I can also give you a very short version or a timeline of the final flight.