STS-51-D was the 16th flight of NASA's Space Shuttle program, and the 4th flight of Space Shuttle Discovery. The launch of STS-51-D from Kennedy Space Center , Florida, on April 12, 1985 to April 18, 1985.  STS-51-D was the 3rd shuttle mission to be extended. During STS-51-D, the shuttle crew deployed two communications satellites: Telesat-I (Anik C1) and Syncom IV-3 (also known as Leasat-3).

Photo composed of 7 actual pictures taken on and from the Space Shuttle Discovery (April 12-18, 1985 Mission) with an actual flown Mission Patch attached

Autographs by the 5 NASA Astronaut Crew Members;

• Commander, Karol J. Bobko,


• Pilot, Donald E. Williams,


• Mission Specialists S. David Griggs,


• Mission Specialist Jeffrey A. Hoffman,


• Mission Specialist Dr. Rhea Seddon

(16" x 20" and mounted)