STS-51ISTS-51I was the 20th mission of NASA's Space Shuttle program and the sixth flight of Space Shuttle Discovery. During the mission, Discovery deployed three communications satellites into orbit.S85-25870 (August 1985) --- The crew emblem for STS-51I is based on a strong patriotic theme with the basic colors...S85-36062 (1 July 1985) --- These five NASA astronauts make up the crew for the mission STS-51I, scheduled for launch...KENNEDY SPACE CENTER, FLA. -- STS-51-I: Discovery launch on August 27, 1985.51I-S-223 (27 August 1985) --- Launch of the Space Shuttle Discovery and beginning of STS-51I mission. View of the pre-dawn...51I-S-189 (27 Aug 1985) --- View of the mission control center (MCC) during STS 51-I as flight controllers watch monitors...51I-17-029 (Aug-Sept 1985) --- A group portrait, recorded by a pre-set 35mm camera, shows all five STS- 51-I crewmembers on...51I-07-015 (4-5 Sept 1985) --- All five STS 51-I crewmembers pose with one of two extravehicular mobility unit (EMU) spacesuits...51I-13-024 (2 Sept. 1985) --- Astronaut Joe H. Engle, STS51-I commander, is seen in a 35mm frame exposed with a...51I-35-078 (30 Aug 1985) --- Typhoons Pat (left) and Odessa in the western Pacific. Of the many tropical cyclones photographed...51I-44-052 (2 Sept. 1985) --- An oblique view of Hurricane Elena, photographed with a 70mm camera by STS-51I crew members...51D-31-050 (12 April 1985) --- Among 51-D's first day activities was the deployment of the Telesat-I (Anik C-1) communications satellite....51I-S-225 (3 September 1985) --- The Space Shuttle Discovery lands on September 3, 1985 on Runway 23, Edwards Air Force...51I-S-240 (3 Sept. 1985) --- Servicing of the space shuttle Discovery after its landing at Edwards Air Force Base ending...