National Aeronautics and Space Administration
Office of Safety and Mission Assurance
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Through a New Lens

Apollo, Challenger and Columbia through the Lens of NASA's Safety Culture Five-Factor Model

Ten years after the inflight breakup of Space Shuttle Columbia Space Transportation System Mission (STS-107), the memory of those astronauts -- and of Apollo 204 in 1967 and Challenger in 1986 -- who died in the line of service continues to serve as a reminder to the agency.