Editing Johnson Space Center (section)

==Facilities==
{{Further|List of buildings in the Johnson Space Center}}

The Johnson Space Center is home to [[Christopher C. Kraft Jr. Mission Control Center]] (MCC-H), the NASA control center that coordinates and monitors all human spaceflight for the United States. MCC-H directed all [[Space Shuttle]] missions, and currently directs American activities aboard the [[International Space Station]]. The [[Apollo Mission Control Center]], a [[National Historic Landmark]], is in Building 30. From the moment a crewed spacecraft clears its launch tower until it lands back on Earth, it is in the hands of Mission Control. The MCC houses several Flight Control Rooms, from which [[flight controller]]s coordinate and monitor the spaceflights. The rooms have many computer resources to monitor, command, and communicate with spacecraft. When a mission is underway, the rooms are staffed around the clock, usually in three shifts.{{Citation needed|date=January 2021}}

JSC handles most of the planning and training of the U.S. astronaut corps and houses training facilities such as the [[Sonny Carter Training Facility]] and the [[Neutral Buoyancy Laboratory]], a critical component in training astronauts for spacewalks. The Neutral Buoyancy Laboratory provides a controlled neutral [[buoyancy]] environment—a very large pool containing about 6.2&nbsp;million U.S. gallons (23,000 m<sup>3</sup>) of water where astronauts train to practice [[extra-vehicular activity]] tasks while simulating [[zero-g]] conditions.<ref name="pmid18619137">{{cite journal |author=Strauss S |title=Space medicine at the NASA-JSC, neutral buoyancy laboratory |journal=Aviat Space Environ Med |volume=79 |issue=7 |pages=732–3 |date=July 2008 |pmid=18619137 }}</ref><ref name="pmid15892545">{{cite journal |vauthors=Strauss S, Krog RL, Feiveson AH |title=Extravehicular mobility unit training and astronaut injuries |journal=Aviat Space Environ Med |volume=76 |issue=5 |pages=469–74 |date=May 2005 |pmid=15892545 |url=http://www.ingentaconnect.com/content/asma/asem/2005/00000076/00000005/art00008 |access-date=2008-08-27}}</ref> The facility provides preflight training in becoming familiar with crew activities and with the dynamics of body motion under weightless conditions.<ref name=history/>

Building 31-N houses the [[Lunar Sample Laboratory Facility]], which stores, analyzes, and processes most of the samples returned from the Moon during the Apollo program.{{Citation needed|date=January 2021}}

The center is also responsible for direction of operations at [[White Sands Test Facility]] in [[New Mexico]], which served as a backup [[Space Shuttle]] landing site and would have been the coordinating facility for the [[Constellation program]], which was planned to replace the Shuttle program after 2010, but was canceled in 2009.{{Citation needed|date=January 2021}}

The visitor center has been the adjacent [[Space Center Houston]] since 1994; JSC Building 2 previously housed the visitor center.{{Citation needed|date=January 2021}}

The [[Johnson Space Center Heliport]] {{Airport codes|||72TX}} is located on the campus.<ref>{{cite web|url=http://www.airnav.com/airport/72TX|title=AirNav: 72TX - Johnson Space Center Heliport}}</ref>