Space Shuttle Challenger / OV-099 | STS-41-B

STS-41-B was the tenth Space Shuttle mission and the fourth of the Space Shuttle Challenger. It deployed 2 communication satellites and inluded the first untethered spacewalk. It was also the first shuttle mission to land at Kennedy Space Center.

The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program name was Space Transportation System (STS). Five complete Space Shuttle orbiter vehicles were built and flown on a total of 135 missions from 1981 to 2011.

• Space Shuttle

  Human Spaceflight
  The Space Shuttle program was the fourth human spaceflight program carried out by the National Aeronautics and Space Administration (NASA), which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011.
  Program infoProgram wiki

• Vance D. Brand
  Commander
• Robert L. Gibson
  Pilot
• Bruce McCandless II
  Mission Specialist
• Robert L. Stewart
  Mission Specialist
• Ronald McNair
  Mission Specialist