ChallengerSpace Shuttle Challenger lifts off on an eight-day mission, the first shuttle mission with a seven-person crew, which also happens to be the first American shuttle crew with two women on board. A satellite to study radiation around the Earth is deployed, along with an experiment to study the feasibility of refueling empty satellites to extend their service life. Challenger’s crew for this flight consists of Commander Robert Crippen, Pilot Jon McBride, mission specialists Kathryn Sullivan, Sally Ride, David Leestma and payload specialists Marc Garneau and Paul Scully-Power.