STS-90 was a 1998 Space Shuttle mission flown by the Space Shuttle Columbia. The 16-day mission marked the last flight of the European Space Agency's Spacelab laboratory module, which had first flown on Columbia on STS-9, and was also the last daytime landing for Columbia.

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.

United Space Alliance (USA) is a spaceflight operations company. USA is a joint venture which was established in August 1995 as a Limited Liability Company (LLC), equally owned by Boeing and Lockheed Martin.

• 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

• Richard A. Searfoss
  Commander
• Scott Altman
  Pilot
• James A. Pawelczyk
  Payload Specialist
• Jay C. Buckey
  Payload Specialist
• Dafydd Williams
  Mission Specialist
• Kathryn P. Hire
  Mission Specialist
• Richard M. Linnehan
  Mission Specialist