The Columbia Disaster refers to the tragic incident that occurred on February 1, 2003, when the Space Shuttle Columbia disintegrated upon reentering Earth's atmosphere, leading to the loss of all seven crew members. The disaster was the second fatal incident in the Space Shuttle program after the Challenger explosion in 1986. The Columbia Accident Investigation Board was formed to determine the cause of the disaster, which was found to be a piece of foam insulation that broke off from the shuttle's external tank during launch and struck the left wing. This damage led to the catastrophic failure upon reentry. The Columbia Disaster led to significant changes in space policy and procedures to enhance the safety of future missions.

Here's What EXACTLY Happened In Columbia's Final Moments (Re-upload)| Columbia Disaster

Columbia disaster: Evidence tells the story of tragic ending to space mission