The seventh launch of the Space Shuttle and the second lift-off of the Orbiter Challenger occurred at 7:33 a.m. E.D.T. today from the Complex 39-A launch site. The six day mission will be highlighted by the first direct landing from space by an orbiter to the Shuttle Landing Facility. The STS-7 crew consists of Commander Robert Crippen, the first two-time Shuttle astronaut; Pilot Frederick H. Hauck and three mission specialists; Dr. Sally Ride, John Fabian and Dr. Norman K. Thagard. During the mission the crew will deploy the Indonesian PALAPA-B and the Canadian ANIK-C communications satellites. They will also use the Remote Manipulator Arm to deploy and retrieve a platform for space experiments called the Shuttle Pallet Satellite (SPAS), and serve as a spaceborne laboratory for OSTA-2, a scientific payload. Getaway Special canisters and materials processing ex