What was the name of the US space shuttle that exploded on take-off in 1986, killing all 7 crew members?
OV-099 Space Shuttle Challanger Challenger Space Shuttle STA-099 Shuttle Orbiter Challenger Space shuttle challenger Challenger space shuttle The challenger 'CHALLENGER' Space shuttle Challenger Shuttle Challenger Space Shuttle Challenger OV-99 Challenger Spacecraft OV-199 Challenger (Space Shuttle)