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The Lyndon B. Johnson Space Center (JSC) is the National Aeronautics and Space Administrationmarker's center for human spaceflight activities. The center consists of a complex of 100 buildings constructed on located in the Bay Areamarker of southeast Houston, Texasmarker. Johnson Space Center is home to the United Statesmarker astronaut corps and is responsible for training astronauts from both the U.S. and its international partners. The center, originally known as the Manned Spacecraft Center, was constructed on land donated by Rice University and opened in 1963. On February 19, 1973, the center was renamed in honor of the late U.S. president and Texas native, Lyndon B. Johnson. JSC is one of ten major NASA field centers.

History

Space Center has its origins in legislation shepherded to enactment in 1958 by then-U.S. Senator Lyndon Baines Johnson, who was from Texas. After President John F. Kennedy made the goal in 1962 to put a man on the Moon by the end of the decade, the Space Task Group was formed with Langley Research Centermarker engineers to lead the Apollo Project. The group would need test facilities and research laboratories suitable to mount an expedition to the moon. In July 1961, NASA Administrator James E. Webb headed the site selection team. Requirements for the new site included the availability of water transport and an all-weather airport, proximity to a major telecommunications network, availability of established industrial workers and contractor support, an available supply of water, a mild climate permitting year-round outdoor work and a culturally attractive community. Houston was initially included because of the proximity to the United States Army San Jacinto Ordnance Depot located on the Houston Ship Channelmarker, and to regional universities, including Rice University, University of Texasmarker, and Texas A&M Universitymarker. The selection of Houston for the site was announced in September 1961. Construction of the center designed by Charles Luckmanbegan in April 1962, and the facility was officially opened for business in September 1963. When opened, the facility was originally designated the Manned Spacecraft Center (MSC) and was to be the primary center for U.S. space missions involving astronauts. The center was renamed the Lyndon B. Johnson Space Center in 1973, the year Johnson died.


The center's Mission Control Center has been the operational center of every American human space mission since Gemini IV. The control center manages all activity on board the spacecraft and directs all space shuttle missions. Mission Control Center was constructed in 1962. By 1965, JSC was fully operational and has been responsible for coordinating and monitoring every crewed NASA mission since the Gemini Project.

In addition to housing NASA's astronaut operations, JSC is also the site of the former Lunar Receiving Laboratory, where the first astronauts returning from the moon were quarantined, and where the majority of lunar samples are stored. The center's Landing and Recovery Division operated MV Retriever in the Gulf of Mexico for Gemini and Apollo astronauts to practice water egress after splashdown.

In the wake of the January 28th, 1986 Space Shuttle Challenger disaster, then-President Ronald Reagan and First Lady Nancy traveled to JSC on January 31st to speak at a memorial service honoring the astronauts. It was attended by 6,000 NASA employees and 4,000 guests, as well as by the families of the crew. During the ceremony, an Air Force band led the singing of "God Bless America" as NASA T-38 Talon supersonic jets flew directly over the scene, in the traditional missing-man formation. All activities were broadcast live by the national television networks.

One of the artifacts displayed at Johnson Space Center is the Saturn V rocket. It is whole, except for the ring between the S-IC and S-II stages, and the fairing between the S-II and S-IVB stages, and made of actual surplus flight-ready articles. It also has a real (though incomplete) Apollo CSM, intended to fly in the canceled Apollo 19 mission.

In September 2008, NASA's Johnson Space Center celebrated its 50th year of leading America into space.

On April 20, 2007 a hostage situation developed in Building 44, the Communication and Tracking Development Laboratory where a gunman killed one person, injured another, and took a hostage for over three hours until finally committing suicide.

On September 13, 2008 Hurricane Ike hit Galvestonmarker as a Category 3 Hurricane and caused minor damage to the Mission Control center and other buildings in the Johnson Space Center. The storm damaged the roofs of several hangars for the T-38 Talons at Ellington Field.

Facilities

Mission Control Center
An astronaut training in the Neutral Buoyancy Laboratory
The Johnson Space Center is home to Mission Control Centermarker (MCC-H), the NASA control center that coordinates and monitors all human spaceflight for the United States. MCC-H directs all Space Shuttle missions and activities aboard the International Space Station. The Apollo Mission Control Center, a National Historic Landmark can be found in building 30. From the moment a spacecraft clears its launch tower until it lands back on earth, it is in the hands of Mission Control. The Mission Control Center houses several Flight Control Rooms, from which Flight controllers 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 3 shifts.

The center handles most of the planning and training of the US astronaut corps and houses training facilities such as the Sonny Carter Training Facilitymarker and the Neutral Buoyancy Laboratorymarker, which is a critical component in the training of astronauts for spacewalks. The Neutral Buoyancy Laboratory provides a controlled neutral buoyancy environment a very large pool containing about 6.2 million US gallons (23,000 m³) of water where astronauts train to practice extra-vehicular activity tasks while attempting to simulate zero-g conditions. The facility provides pre-flight training in becoming familiar with crew activities and with the dynamics of body motion under weightless conditions.

The center is also responsible for direction of operations at White Sands Test Facility in New Mexicomarker, which serves as a backup Shuttle landing site and as the coordinating facility for the upcoming Constellation program, which will replace the Space Shuttle program after 2010.

The visitor's center of Johnson Space Center is Space Center Houstonmarker since 1994. One of the JSC buildings (Building 2) once housed the JSC Visitor's Center.

The Johnson Space Center Heliport is located on the campus. Ronald C. Bailey manages the heliport.

Personnel and training

Approximately 3,000 civil servants, including 110 astronauts, are employed at Johnson Space Center. The bulk of the workforce are the over 15,000 contractors. Over 15 contracting firms work at JSC; the largest is the United Space Alliance, which accounts for about 40 percent of the JSC employees. As of November 2005 the center's tenth director is former astronaut Michael Coats, the first being Robert Gilruth.

NASA's astronaut training is conducted at the Johnson Space Center. Astronaut candidates receive training on shuttle systems and in the basic sciences which include mathematics, guidance and navigation, oceanography, orbital dynamics, astronomy, and physics. Candidates are required to complete military water survival prior to beginning their flying instruction. Candidates are also required to become SCUBA qualified for extravehicular training and are required to pass a swimming test. EVA training is conducted at the Sonny Carter Training Facilitymarker. Candidates are also trained to deal with emergencies associated with hyperbaric and hypobaric atmospheric pressures and are given exposure to the microgravity of space flight. Candidates maintain their flying proficiency by flying 15 hours per month in NASA's fleet of T-38 jets based at nearby Ellington Fieldmarker. Additionally, candidates practice Orbiter landings in the Shuttle Training Aircraft.

The astronauts begin their formal training program during their year of candidate training by reading manuals and by taking computer-based training lessons on the various Orbiter systems. The training process includes practice with the single systems trainer where the astronauts are trained to operate each Orbiter system and to recognize malfunctions and perform corrective actions.

Following SST training, the astronauts begin training in the Shuttle Mission Simulators (SMSs). The SMS provides training of shuttle vehicle operations and systems tasks associated with the major flight phases. Astronauts begin their training in the SMS using training software until they are assigned to a particular mission. Astronauts also train with the flight controllers in the Mission Control Center. The SMS and MCC are linked by computer in the same way the Orbiter and MCC are linked during an actual mission.

Research

Johnson Space Center leads NASA’s flight-related scientific and medical research programs. Technologies developed for spaceflight are now in use in many areas of medicine, energy, transportation, agriculture, communications and electronics.

The Astromaterials Research and Exploration Science (ARES) office performs the physical science research at the center. ARES directs and manages all functions and activities of the ARES scientists that perform basic research in earth, planetary, and space sciences. ARES scientists and engineers provide support to the human and robotic spaceflight programs. The responsibilities of ARES also include interaction with the Office of Safety and Mission Assurance and the Human Space Flight Programs.

Johnson Space Center was granted a five-year, $120-million extension of its agreement with the National Space Biomedical Research Institute at Baylor College of Medicinemarker to study the health risks related to long-duration space flight. The extension will allow a continuation of biomedical research in support of a long-term human presence in space started by the institute and NASA's Human Research Program through 2012.

The Prebreathe Reduction Program is a research study program at the JSC that is currently being developed to improve the safety and efficiency of space walks from the ISS.

The Overset Grid-Flow software was developed at Johnson Space Center in collaboration with NASA Ames Research Centermarker. The software simulates fluid flow around solid bodies using computational fluid dynamics.

See also



References

  1. "Lyndon B. Johnson Space Center". NASAFacts. JSC 04264 Rev D.
  2. http://www.airnav.com/airport/72TX


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