On This Day : Space Shuttle Challenger is lost Opinion On this day in 1986, millions watched on live TV as the Space Shuttle Challenger exploded moments after launch, Eliot Wilson remembers On this day 40 years ago, NASA was preparing to launch the 25th mission of its Space Shuttle programme, STS-51-L, using the Space Shuttle Challenger on its 10th flight. During a six-day mission, [...]