STS -51- G (English Space Transportation System) is the mission name for the flight of the U.S. Space Shuttle Discovery American ( OV -103 ) from NASA. The launch took place on 17 June 1985. It was the 18th Space Shuttle mission and the fifth flight of the Space Shuttle Discovery.


Home team

  • Daniel Brandenstein ( second space flight ), commander of United States
  • John Creighton ( first space flight), Pilot United States
  • Shannon Lucid ( first space flight ), Mission Specialist United States
  • John Fabian ( second space flight), Mission Specialist United States
  • Steven Nagel ( first space flight), Mission Specialist United States
  • Patrick Baudry ( first space flight), Payload Specialist ( CNES ) France
  • Salman bin Abdulaziz Al Saud ( first space flight), Payload Specialist ( Arabsat ) Saudi Arabia

Al Saud at the time of the flight almost 29 years old and since then the youngest crew member aboard an American spacecraft.


  • Jean- Loup Chrétien ( CNES ) France for Baudry
  • Abdulmohsen Al- Bassam ( Arabsat ) Saudi Arabia for Al Saud

Mission overview

On the occasion of mission STS -51- G three communications satellites were brought into orbit. These were Telstar - 3D of AT & T, Morelos -A for Mexico and ARABSAT -A for a Saudi Arabian organization. Among the experiments carried is in particular to mention the first flight of the " Directional Solidification Furnace Automated " ( ADSF ), a kiln for physical tests in weightlessness.

On June 20, a SPARTAN -101 satellite was exposed and then brought back after more than 45 hours on board. During the free flight of a SPARTAN galaxy clusters and the center of our galaxy has been explored.

The landing was planned in Edwards AFB in California. Discovery was four days later transported back to the time the only Shuttle Carrier Aircraft to Kennedy Space Center, Florida.