The Challenger tragedy shocks a nation, as millions watch on TV screens across the USA.
Something has gone catastrophically wrong with the launch of space shuttle mission STS-51L. As they watch a fireball engulf the spacecraft, nobody in mission control has any idea what went wrong. Could it have been prevented?
We turn back the clock to a meeting the day before the launch which might have changed everything.
This episode contains scenes some listeners may find upsetting.
Some scenes in this series use recreated sound effects.
13 Minutes Presents: The Space Shuttle is a BBC Audio Science Unit production for the BBC World Service.
Hosted by space scientist Maggie Aderin-Pocock.
Theme music by Hans Zimmer and Christian Lundberg, and produced by Russell Emanuel, for Bleeding Fingers Music.
Archive: Ronald Reagan announces Roger Commission inquiry, Reagan Library, 1986 Roger Boisjoly, Larry Mulloy and Dr James Fletcher, statements to the Rogers Commission, 1986 Mission audio and oral histories, Nasa History Office