Editing Marshall Space Flight Center (section)

====Spacelab====
In addition to the pallet experiments flown on the Space Shuttle, many other experiments were performed onboard [[Spacelab]]. This was a reusable laboratory consisting of multiple components, including a pressurized module, an unpressurized carrier, and other related hardware. Under a program overseen by MSFC, ten Europeans nations jointly designed, built, and financed the first Spacelab through the European Space Research Organisation ([[ESRO]]. In addition, Japan funded a Spacelab for STS-47, a dedicated mission.<ref>Lord, Douglas R.; [https://archive.org/details/nasa_techdoc_19880009991 "Spacelab: An international success story"] NASA, Jan. 1, 1987</ref>

Over a 15-year period, Spacelab components flew on 22 shuttle missions, the last in April 1998. Examples of Spacelab missions follow:{{citation_needed|date=July 2019}}

*[[STS-9|Spacelab 1]] was flown on STS-9, launched November 28, 1983. A Shuttle ''Columbia'' flight, this was the first with six astronauts, including two Payload Specialists from the ESRO. There were 73 experiments carried out in astronomy and physics, atmospheric physics, Earth observations, life sciences, materials sciences, and space plasma physics.{{citation_needed|date=July 2019}}
*[[STS-50|U.S. Microgravity Laboratory 1]] (USML-1) was launched in June 1992 on STS-50, the first [[Extended Duration Orbiter]]. During 14 days, 31 microgravity experiments were completed in round-the-clock operations. [[STS-73|USML-2]] was launched in October 1995 on STS-73 with an MSFC scientist, [[Frederick W. Leslie]], as an on-board Payload Specialist.{{citation_needed|date=July 2019}}

In early 1990, MSFC's Spacelab Mission Operations Control Center was formed to control all Spacelab missions, replacing the Payload Operations Control Center formerly situated at the JSC from which previous Spacelab missions were operated.{{citation_needed|date=August 2019}}