engine exhaust, solid rocket booster plume and an expanding ball of gas from
the external tank are visible seconds after the Space Shuttle Challenger
accident on Jan. 28, 1986.
The explosion 73 seconds after liftoff claimed the lives of Challenger's crew of seven astronauts. The cause was determined to be an O-ring failure in the right Solid Rocket Booster; cold weather prior to launch was a contributing factor.
Commission Report can be found at: