
abbr.
National Aeronautics and Space Administration
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Britannica Concise Encyclopedia:
NASA |
For more information on NASA, visit Britannica.com.
Hoover's Company Profiles:
National Aeronautics and Space Administration |
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300 E St. SW Washington, DC 20546-0001 DC Tel. 202-358-0001 Fax 202-358-4338 |
Type: Government Agency
On the web:
http://www.nasa.gov
National Aeronautics and Space Administration (NASA) boldly goes where no one has gone before. The federal agency's Aeronautics division conducts research on new flight technologies while its Exploration Systems works on human and robotic exploration and its Science unit studies climate, gravitation, and the atmosphere. The Space Operations division mans and maintains the International Space Station in conjunction with several other nations; it also ran the space shuttle program until that was retired in 2011. NASA was founded in 1958, partly in response to Russia's launch of the Sputnik satellite, to research space and flight technology. It successfully landed two Americans on the moon in 1969.
Key numbers for fiscal year ending September, 2010:
Sales: $21,509.0M
Officers:
Administrator: Charles F. Bolden Jr.
Deputy Administrator: Lori B. Garver
Associate Administrator Mission Support Directorate and Director, Glenn Research Center: Woodrow Whitlow Jr.
Barron's Marketing Dictionary:
Newspaper Advertising Sales Association (NASA) |
Organization founded in 1907 as the Six-Point League and later the American Association of Newspaper Representatives to promote newspapers as an advertising medium. The Association offers information services and educational programs to promote the standards of excellence in the industry. Headquartered in New York City, the Association publishes the NASA Directory of National Members and Their Represented Newspapers in the United States and Canada. Members consist of national advertising sales representatives of approximately 1400 daily newspapers in the United States and Canada.
abbr. National Aeronautics and Space Administration.
See the Introduction, Abbreviations and Pronunciation for further details.
Gale Encyclopedia of US History:
National Aeronautics and Space Administration |
National Aeronautics and Space Administration (NASA) is the unit of the federal government charged with operating the nation's space exploration and aeronautics programs. The administrator of NASA, an independent agency, is appointed by the president, subject to Senate confirmation. NASA came into existence on 1 October 1958, after Congress passed the National Aeronautics and Space Act of 1958, at the recommendation of President Dwight D. Eisenhower. Many Americans had been highly alarmed when, on 4 October 1957, the Soviet Union put into orbit Sputnik, the first man-made satellite. In the midst of the Cold War, Americans feared that the Soviets might develop superior missile and space technology and use it against the United States. The new agency absorbed the National Advisory Committee for Aeronautics, a poorly funded research agency formed in 1915.
Even though much of NASA's early political support stemmed from America's Cold War competition with the Soviet Union, NASA was designed as an explicitly civilian agency to pursue peaceful space activities. Overseeing the military applications of space technology was left to the Department of Defense. In practice, however, the distinction has sometimes blurred. From the beginning, NASA and the military have cooperated in a variety of ways, and many astronauts have come from military backgrounds.
Projects Mercury and Gemini
NASA designed its first major program, Project Mercury, to study human abilities in space and to develop the technology required for manned space exploration. The program and the original seven astronauts received tremendous public attention, and the astronauts became national heroes. One of those seven, Alan Shepard, became the first American in space with his suborbital flight on 5 May 1961. On 20 February 1962, John Glenn became the first American to orbit the earth (Soviet cosmonaut Yuri A. Gagarin was the first human in space and the first to orbit the Earth, on 12 April 1961).
President John F. Kennedy congratulated the astronauts and NASA but said that the nation needed "a substantially larger effort" in space. Speaking to Congress on 25 May 1961, Kennedy declared what that effort should be: "I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to the Earth." Kennedy admitted that the lunar program would be expensive and risky, but the public came to support it enthusiastically. Congress approved the program—called Project Apollo—with very little debate. Apollo became the most expensive civilian project in American history.
Kennedy's dramatic goal exhilarated NASA. Under the skillful leadership of administrator James Webb, NASA set out to achieve the goal. The Mercury flights (a total of six from 1961 to 1963) and the subsequent Project Gemini (ten flights from 1965 to 1966) served as preliminary steps to going to the moon. The larger and more advanced Gemini spacecraft allowed astronauts to practice maneuvers that would be essential in the Apollo program.
Project Apollo
Ironically, as NASA worked toward fulfilling its exciting goal, public support for the agency began to decline. After it became clear that the United States was not really losing the "space race" to the Soviet Union, many Americans wondered whether the lunar program was worth its cost. Then, on 27 January 1967, three astronauts conducting tests inside a sealed Apollo capsule died when a fire broke out in the spacecraft. A review board found that NASA had not paid adequate attention to safety.
After several unmanned Apollo test flights and one manned mission that orbited the Earth, NASA was ready to send a spacecraft into lunar orbit. Circling the moon on Christmas Eve, 1968, the crew of Apollo 8 beamed back to Earth spectacular pictures of the moon's surface. NASA
sent two more test flights into lunar orbit and was then ready to land on the moon. Apollo 11 lifted off on 16 July 1969 and landed on the moon four days later. As much of the world watched televised coverage in awe, Neil Armstrong became the first human to walk on the moon. Just after he stepped from his spacecraft onto the lunar surface, Armstrong spoke his immortal line: "That's one small step for [a] man, one giant leap for mankind." The crew of Apollo 11 returned safely to earth on 24 July.
Apollo 12 made a smooth journey to the moon and back, but the next mission—Apollo 13—encountered serious problems. On the way to the moon in April 1970, one of the spacecraft's oxygen tanks exploded, crippling the ship and leaving doubt whether the crew could return safely. Some ingenious work by the astronauts and the NASA engineers on the ground brought the crew of Apollo 13 home alive. NASA conducted four more successful expeditions to the moon, but dwindling public interest and congressional support led to the cancellation of the final two planned flights.
The Space Shuttle
NASA's next major project was the space shuttle, which the agency promoted as a means of reliable and economical access to space. As it developed the shuttle during the 1970s, NASA also pursued the Apollo-Soyuz Test Project with the Soviets, Skylab, and a series of unmanned exploratory missions, including the Viking probe of Mars. The shuttle began flying in 1981. Although the shuttle proved not to be as efficient as NASA promised, more than twenty flights had taken place by the end of 1985.
On 28 January 1986, tragedy struck. The shuttle Challenger exploded seventy-three seconds after liftoff, killing all seven astronauts aboard. The disaster stunned NASA and the nation. A presidential commission investigating the accident sharply criticized NASA's management and safety procedures. After revamping the program, shuttle flights resumed in 1988.
The Space Station
The 1990s saw NASA make significant improvements to the shuttle program, pursue a variety of unmanned missions (including the impressive Hubble Space Telescope), continue research in aeronautics and space science, and work on its next major project, an orbiting space station. Hampered by budgetary restraints and widespread criticisms of the initial station design, the project progressed slowly. In the mid-1980s, NASA had announced that the station would be a cooperative effort. Fifteen other nations—including Russia, America's former rival in space—eventually joined with the United States to develop the International Space Station (ISS). Russia's own space station, Mir, orbited the Earth from 1986 to 2001.
In late 1998, the first of more than forty space flights needed to transport and assemble the station in orbit took place. Plans originally called for international crews of up to seven astronauts to stay on the station for three to six months at a time. However, unexpectedly high development costs, plus unexpectedly low financial contributions from Russia, forced NASA to scale back the project to save money. The first crew to inhabit the station arrived in November 2000. Assembly of the station was scheduled for completion around 2004.
Bibliography
Bilstein, Roger E. Orders of Magnitude: A History of the NACA and NASA, 1915–1990. Washington, D.C.: NASA, 1989.
Byrnes, Mark E. Politics and Space: Image Making by NASA. West-port, Conn.: Praeger, 1994.
Launius, Roger D. NASA: A History of the U.S. Civil Space Program. Malabar, Fla.: Krieger, 1994.
Walsh, Patrick J. Echoes Among the Stars: A Short History of the U.S. Space Program. Armonk, N.Y.: M.E. Sharpe, 2000.
Answer of the Day:
Mercury Program |
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| US Mercury Freedom 7 Liftoff |
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From our Archives: Today's Highlights, April 9, 2006
Columbia Encyclopedia:
National Aeronautics and Space Administration |
The creation of NASA was spurred by American unpreparedness at the time the Soviet Union launched (Oct. 4, 1957) the first artificial satellite (Sputnik 1). NASA took over the Langley, Ames, and Lewis research centers from NACA. Soon after its creation, NASA acquired from the U.S. army the Jet Propulsion Laboratory (operated by the California Institute of Technology). Later, the Army Ballistic Missile Arsenal (now the Marshall Space Flight Center) at Huntsville, Ala., was placed under NASA control.
The best-known NASA field installations are the Lyndon B. Johnson Space Center near Houston, Tex., where flights are coordinated, and the John F. Kennedy Space Center at Cape Canaveral, Fla., where space shuttle and other space program launches have taken place. Other facilities include the Dryden, Glenn, Goddard, and Stennis centers and NASA headquarters, in Washington, D.C. Operationally, NASA is headed by a civilian appointed by the president and has four divisions: the offices of Space Flight, Space Science Programs, Aeronautics Exploration and Technology, and Tracking and Data Acquisition. Despite some highly publicized failures, NASA has in many cases successfully completed its missions within their projected budgets; the total cost of the Apollo project, for example, wound up very close to the original $20-billion estimate. Currently, NASA oversees all space science projects and launches approximately half of all military space missions.
Bibliography
See T. Crouch, The National Aeronautics and Space Administration (1989); H. Benedict, NASA: The Journey Continues (2d ed., 1992); R. D. Launius et al., NASA and the Exploration of Space (1998); W. E. Burrows and W. Cronkite, The Infinite Journey (2000); H. E. McCurdy, Inside NASA: High Technology and Organizational Change in the U.S. Space Program (2000); R. E. Bilstein, Testing Aircraft, Exploring Space (2003); F. Sietzen, Jr., et al., New Moon Rising: The Making of America's New Space Vision and the Remaking of NASA (2004).
Gale Encyclopedia of Espionage & Intelligence:
NASA (National Air and Space Administration) |
The Department of Defense (DOD) and the National Aeronautics and Space Administration (NASA) have to date elevated aerospace technologies to great heights. In a July 31, 1915, interview in Collier's Weekly, aviation pioneer Orville Wright (1871–1948) said, "The greatest use of the aeroplane [airplane] to date has been as a tremendously big factor of modern warfare." His statement could also be considered true today, along with the role played by commercial transportation in world's affairs. The victory of the United States in Operation Iraqi Freedom in 2003 illustrated the utilization of air and space to quickly quell an opponent's fighting ability. In this conflict, air and space utilization came in the form of direct air support, air to ground strategic targeting, Global Positioning System (GPS) targeting, and aerospace reconnaissance, both airplane and satellite. This utilization of air and space remains among the most powerful physical tools for ensuring national security.
NASA and DOD joint research has propelled the advances that make air and space important military assets. NASA's part in national security strategy is not as substantial as it was during NASA's first 35 years of existence (during the space race), but it still plays an important role. As a national icon, NASA inspires nationalism in the American people, and its achievements are projected worldwide as an exhibit of America's scientific ability. A superpower nation with a space program was historically perceived as a potential threat to other nations, as seen with the United States reaction to the launching of the Soviet Union's Sputnik during the Cold War. The nation's response was the creation of a national civilian air and space agency called NASA.
NASA aeronautical research spurred numerous advances in aviation from which the military benefited; early studies regarding lifting bodies and fly-by-wire aircraft, which used NASA-developed electronics to control the inherently unstable aircraft, are two examples. Many of the aerospace research projects at the Dryden Flight Research Center (DFRC) in California are joint projects that advance aerospace engineering, science, and develop military hardware. Some of the research involves speed of sound (sonic and supersonic) studies, aeroelastic wing research, lifting body studies, unmanned vehicles, and other proprietary research.
Even though DOD and NASA have different space programs, they share numerous resources and have many joint contracts that support both the DOD program and the NASA program. These range from the simple support contracts for routine battery maintenance to expansive operations such as communications and spacecraft tracking. Both organizations share launch pads for expendable launch vehicles. Some of the expendable launch vehicles at the Kennedy Space Center (KSC) at Cape Canaveral, Florida, are the Titan, Atlas, and Delta rockets. Launch and other facilities at KSC are resources shared by NASA, the Navy, and the Air Force.
NASA played a direct role in national security by providing the means to take heavy payloads into orbit. DOD has made its most direct use of NASA equipment in utilizing the Space Shuttle to bring up numerous DOD payloads. The contents of many of these payloads are classified information. There have been ten DOD dedicated shuttle launches. They are STS 51C, 51J, 27, 28, 33, 36, 38, 39, 44, and 53 (STS, which stands for Space Transportation System, also known as the Space Shuttle). Many of these missions remain secret even today, although some general knowledge about national security-based payloads has been disseminated and reported. In The Space Shuttle Roles, Missions and Accomplishments space historian David M. Harland stated that the shuttle delivered three new reconnaissance satellites in recent years. One satellite, called Lacrosse, provides all-weather vehicle-tracking capability. Another satellite included an advanced geostationary listening post. The third satellite is considered to house advanced imaging capabilities. It remains a secret as to what other DOD dedicated missions delivered to orbit or accomplished using the shuttle. Classified DOD missions continue to be carried out today, but mainly utilize the expendable launch vehicles. DOD and NASA both frequently have multiple minor payloads in addition to the major payload on a mission (both shuttle and expendable) to save costs. Some of these minor payloads are DOD sponsored payloads.
At one point, the vision of routine Space Shuttle launches was so powerful that the Air Force reluctantly agreed to phase out expendable launch vehicles. The Air Force's acceptance of the shuttle came with imposing requirements on the shuttle to launch heavy payloads of up to 60,000 pounds and to provide a cargo bay of 18 meters. The shuttle's payload mass weight has been downgraded to increase its margin of safety. The failure of the shuttle to run routinely, once a week, and the Challenger accident in 1986 motivated the DOD and NASA to change the DOD's main launching platform back to the expendable launch vehicles. Department of Defense then moved to utilizing new heavy lifting expendable launch vehicles to replace the shuttle's heavy lifting capacity. These new heavy-launch expendable launch vehicles can deliver almost 50,000 pounds to low Earth orbit.
Launch vehicles, including the Space Shuttle, utilize hardware that could be used for military applications such as the sophisticated guidance and navigations systems. The loss of the Space Shuttle Columbia in 2003 required personnel to retrieve instrumentation from the crash site to secure it to protect the secrecy of the technology.
The most well known NASA personnel are its astronauts. Astronauts have been used to carry out the DOD dedicated Space Shuttle missions. This required the astronauts to receive training on the secret payloads in order to properly execute the mission. The classified information given to the astronauts is usually kept to a minimum of relevant required knowledge. The payloads are normally loaded into the launch vehicle at the latest possible opportunity in order to maintain security. Shuttle astronauts repaired one DOD satellite via EVA (Extra Vehicular Activity), spacewalk, when it failed to start. The majority of astronauts chosen for these missions have a military background, mostly for the flight experience. It is difficult to define to what extent NASA personnel have worked on DOD payloads because of the classified nature and the numerous joint research activities.
The Air Force has had astronaut-like programs, such as the Spaceflight Engineers and the Military-Man-In-Space program. Before the shuttle, spaceflight engineers were recruited to utilize the Gemini spacecraft to go to a planned Manned Orbiting Laboratory. The orbiting laboratory was cancelled with the introduction of automated cameras on satellites. Afterwards, spaceflight engineers were Air Force pilots who would train to be the specialist that would fly on the shuttle to oversee specific DOD payloads. In January, 1985, Gary Payton (a Spaceflight Engineer) flew on the first dedicated DOD shuttle mission, STS 51C, to supervise the deployment of a classified payload. The spaceflight engineers program was later disbanded. The Military-Man-In-Space program was designed to determine the potential for humans to be used for Earth observations. Human vision and intelligence was found to be a valuable asset as remote sensors, because of man's adept ability to distinguish subtle variations in hues more accurately than cameras and film. Remote sensing from space with accurate ground truth can greatly enhance the understanding of large natural systems like forests and ocean dynamics.
NASA's main role for national security is to inspire the youth of today that will populate aerospace professions in the future. This pool of technically minded persons will give the DOD a more intelligent and numerous base from which to recruit a future workforce. High-risk technologies have the potential to provide tremendous benefit for mankind. For aeronautics, NASA research divisions are positioned to study more technologies for their own benefit as well as that of the DOD, and the nation as a whole.
Further Reading
Books
Harland, David M. The Space Shuttle Roles, Missions and Accomplishments. New York: John Wiley & Sons Ltd, 1998.
Electronic
Dryden Flight Research Center. "Flight Research Milestones." <http://www.dfrc.nasa.gov/Dryden/mistone.html> (May 6, 2003).
Abbreviations:
NASA |
| Meaning | Category |
| A Need Another Shuttle Again | Miscellaneous->Unfiled |
| A Now Accepting Seven Applications | Miscellaneous->Unfiled |
| Amerikan Ulusal Havacilik Ve Uzay Arastirmalari Merkezi | International->Turkish |
| Nasstar | Business->London Stock Exchange |
| National Acronym Slinging Agency | Miscellaneous->Funnies |
| National Aeronautics and Space Administration | Academic & Science->Meteorology Governmental->NASA Governmental->US Government Governmental->FDA |
| National Aggregate Stone Association | Community->Non-Profit Organizations |
| National Army Sporting Association | Business->Professional Organizations |
| National Assistance Services Australia | Business->Firms |
| National Association of Signing Agents | Business->Professional Organizations |
| National Association of Space Astronauts | Miscellaneous->Funnies |
| Natural Athlete Strength Association | Community->Sports |
| Need Another Seven Astronauts | Miscellaneous->Funnies |
| Need Another Seven Astronoughts | Miscellaneous->Unfiled |
| Negotiating Agents Steering API | Computing->Networking |
| Nerds Are Searching for Answers | Miscellaneous->Funnies |
| Never A Straight Answer | Miscellaneous->Funnies |
| Never Absolutely Sure of Anything | Miscellaneous->Funnies |
| Never Accept Stolen Asparagus | Miscellaneous->Unfiled |
| Never Admit Seeing Anything | Miscellaneous->Funnies |
| New Age Space Association | Business->Professional Organizations |
| New Airwalk Shoes Accepted | Miscellaneous->Unfiled |
| No Access To Space Allowed | Miscellaneous->Unfiled |
| No Access to Space for Americans | Miscellaneous->Funnies |
| Noodle Arrangement Society of America | Miscellaneous->Funnies |
| North American Search Authority | Community->Law |
| Northmemorial Amateur Sports Association | Community->Sports |
| Nosey Alien Seekers Association | Miscellaneous->Funnies |
| Not A Shuttle Anymore | Miscellaneous->Unfiled |
| Not All Shuttles Arrive | Miscellaneous->Funnies |
| The National Addicts Of Singer Aya | Miscellaneous->Unfiled |
Click here to submit an acronym.
Cosmic Lexicon:
NASA |
United States federal agency; National Aeronautics and Space Administration. "NASA is an investment in America's future. As explorers, pioneers, and innovators, we boldly expand frontiers in air and space to inspire and serve America and to benefit the quality of life on Earth." -from the NASA Strategic Plan.
Dictionary of Cultural Literacy: Politics:
National Aeronautics and Space Administration |
An agency of the United States government, charged with directing civilian programs in aeronautics research and space exploration. NASA maintains several facilities, most notably the Johnson Space Center in Houston (which selects space crew personnel and is responsible for ground direction of space flights), and the launching pads at Cape Canaveral in Florida.
Wikipedia on Answers.com:
NASA |
Coordinates: 38°52′59″N 77°0′59″W / 38.88306°N 77.01639°W
| National Aeronautics and Space Administration | |
|---|---|
| NASA insignia Motto: For the Benefit of All[1] |
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| Agency overview | |
| Formed | July 29, 1958 |
| Preceding agency | NACA (1915–1958)[2] |
| Jurisdiction | United States government |
| Headquarters | Washington, D.C. 38°52′59″N 77°0′59″W / 38.88306°N 77.01639°W |
| Employees | 18,800+[3] |
| Annual budget | US$17.8 billion (FY 2012)[4] See also NASA Budget |
| Agency executives | Charles Bolden, administrator Lori Garver, deputy administrator |
| Website | |
| nasa.gov | |
The National Aeronautics and Space Administration (NASA) is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research. Since February 2006, NASA's mission statement has been to "pioneer the future in space exploration, scientific discovery and aeronautics research." [5] On September 14, 2011, NASA announced that it had selected the design of a new Space Launch System that it said would take the agency's astronauts farther into space than ever before and provide the cornerstone for future human space exploration efforts by the U.S.[6][7][8]
NASA was established by the National Aeronautics and Space Act on July 29, 1958, replacing its predecessor, the National Advisory Committee for Aeronautics (NACA). The agency became operational on October 1, 1958.[9][10] U.S. space exploration efforts have since been led by NASA, including the Apollo moon-landing missions, the Skylab space station, and later the Space Shuttle. Currently, NASA is supporting the International Space Station and is overseeing the development of the Orion Multi-Purpose Crew Vehicle and Commercial Crew vehicles. The agency is also responsible for the Launch Services Program (LSP) which provides oversight of launch operations and countdown management for unmanned NASA launches.
NASA science is focused on better understanding Earth through the Earth Observing System,[11] advancing heliophysics through the efforts of the Science Mission Directorate's Heliophysics Research Program,[12] exploring bodies throughout the Solar System with advanced robotic missions such as New Horizons,[13] and researching astrophysics topics, such as the Big Bang, through the Great Observatories and associated programs.[14] NASA shares data with various national and international organizations such as from the Greenhouse Gases Observing Satellite.
From 1946, the NACA had been experimenting with rocket planes such as the supersonic Bell X-1.[15] In the early 1950s, there was challenge to launch an artificial satellite for the International Geophysical Year (1957–58). An effort for this was the American Project Vanguard. After the Soviet launch of the world's first artificial satellite (Sputnik 1) on October 4, 1957, the attention of the United States turned toward its own fledgling space efforts. The U.S. Congress, alarmed by the perceived threat to national security and technological leadership (known as the "Sputnik crisis"), urged immediate and swift action; President Dwight D. Eisenhower and his advisers counseled more deliberate measures. This led to an agreement that a new federal agency mainly based on NACA was needed to conduct all non-military activity in space. The Advanced Research Projects Agency (ARPA) was also created at this time to develop space technology for military application.[citation needed]
On July 29, 1958, Eisenhower signed the National Aeronautics and Space Act, establishing NASA. When it began operations on October 1, 1958, NASA absorbed the 46-year-old NACA intact; its 8,000 employees, an annual budget of US$100 million, three major research laboratories (LaRC, ARC, and LFPL) and two small test facilities.[16] A NASA seal was approved by President Eisenhower in 1959.[17] Elements of the ABMA and the NRL were incorporated into NASA. A significant contributor to NASA's entry into the Space Race with the Soviet Union was the technology from the German rocket program (led by Werner von Braun, who was now working for ABMA) which in turn incorporated the technology of American scientist Robert Goddard's earlier works.[18] Earlier research efforts within the U.S. Air Force[16] and many of ARPA's early space programs were also transferred to NASA.[19] In December 1958, NASA gained control of the JPL, a contractor facility operated by the Caltech.[16]
The most important part of NASA's activities are its missions; they can be divided into manned and unmanned. The latter can be either independent, carrying scientific equipment, or supportive, testing equipment for manned flights. In the beginning, NASA’s missions focused on the spacerace with the Soviet Union, which won the first round, but later USA took the initiative and won the final race to the Moon. The unmanned missions have until now explored most of the solar system. They have also brought telescopes for deep space exploration into orbit around the Earth together with satellites for studying Earth itself.
The rocket planes experiments started by NACA was taken a step further by NASA which used them as support for spaceflights, the first of which was one-manned and launched by military rockets. When the attention turned to reaching the Moon, the solution chosen was complicated but also the most economical. Supportive projects, both manned and unmanned were introduced and bigger rockets together with spacecraft and moonlander developed. The Moon landing and end of the space race meant a reduction of NASA’s activities. Space stations of a more or less permanent nature, suggested already during the spacerace, were built and an international cooperation was introduced in an attempt to both bring nations together and at the same time share the high costs of space missions. In all, more than 100 manned missions have been made by NASA since 1958.[20]
The NACA XS-1 (Bell X-1) was followed by additional experimental vehicles, including the X-15 in cooperation with the US Air Force and US Navy. The design featured a slender fuselage with fairings along the side containing fuel and early computerized control systems.[21] When the spacerace began the main objective was to get a person into space as soon as possible, therefore the simplest spacecraft that could be launched by existing rockets was favored. This led to the choice of a small capsule spacecraft while rocket plane proposals like a modified X-15[22] were turned down.[23] Instead X-15 was used for development of techniques and equipment of value for the space missions. This included jets for changing the orientation of a spacecraft, space suits for astronauts and horizon definition for navigation.[24] Nearly 200 flights were made between 1959 and 1968 allowing NASA to collect data vital not only to the spacerace but also the design of the Space Shuttle.[21] The altitude record for X-15 was 354,200 feet (107.96 km).[24]
Freedom 7, the first manned mission by NASA
Project Mercury was initiated in 1958 and started NASA down the path of human space exploration with missions designed to discover if man could survive in space. Representatives from the U.S. Army, Navy, and Air Force were selected to provide assistance to NASA. Pilot selections were facilitated through coordination with U.S. defense research, contracting, and military test pilot programs. On May 5, 1961, astronaut Alan Shepard became the first American in space when he piloted Mercury-Redstone 3, called Freedom 7, on a 15-minute suborbital flight.[26] John Glenn became the first American to orbit the Earth on February 20, 1962 during the flight of Friendship 7.[27]
At that time the Soviet Union had taken the lead in the space race. In April 1961, one month before Alan Shepard, cosmonaut Yuri Gagarin became the first person in space when he orbited the Earth once in Vostok 1.[28] Further in August the same year, the follower Vostok 2 made a day long orbital flight[29] which led to canceling of additional American suborbital missions; they were no longer enough.[30] Three more orbital flights were made by the Mercury project after Friendship 7, the last in 1963.[31] Three additional orbital flights were cancelled since it was clear that the Mercury spacecraft had reached its limit of staying in space.[30]
The defeat in the first round of the spacerace led to the introduction of the Moon race program, Apollo, in 1961 just after the flight of Freedom 7. However, it was estimated that this could not be done in one step and that further projects in Earth orbit were needed.[32]
Project Gemini focused on conducting experiments and developing and practicing techniques required for lunar missions. The first Gemini flight with astronauts on board, Gemini 3, was flown by Gus Grissom and John Young on March 23, 1965.[33] Nine missions followed, showing that long-duration human space flight and rendezvous and docking with another vehicle in space were possible, and gathering medical data on the effects of weightlessness on humans.[34][35] Together with that, Gemini missions also included the first American spacewalks.
Even though the Gemini project managed to make a docking a year before the Soviet space program,[36] it was too early to call it a victory. The maneuvers practiced by Gemini could be used in two ways: a spacecraft could dock with a rocket stage in orbit around the Earth and use it for going to the Moon or a spacecraft together with a Moon lander could be sent to the Moon by a single rocket and then separate and dock again after the lander had been down on the surface. However, there was a third and more direct way of going to the Moon; the Soviet Union could just build a big rocket and land the top of it on the Moon. That again could take itself back to Earth without using rendezvous or docking. In that case the Gemini project would have been a waste of time.[37]
The Apollo (Moon) program was one of the most expensive American scientific programs ever. It is estimated to have cost $191 billion in present day US$.[38][39] In comparison the Manhattan (atom bomb) project cost roughly today-US$24.4 billion.[38][40] It used the Saturn rockets as launch vehicles, which were far bigger than the rockets build for previous projects.[41] The spacecraft was also bigger as can be seen on the picture; it had two main parts: the combined command and service module (CSM) and the lunar landing module (LM). The LM was to be left on the Moon and only the command module (CM) containing the astronauts would eventually return to Earth. (For details see: Apollo 11 flight gallery)
The second manned mission, Apollo 8, brought astronauts for the first time in a flight around the Moon. This happened in December 1968.[42] Shortly before, the Soviet had sent an unmanned spacecraft around the Moon[43] but they never managed to do more than that. On the next two missions docking maneuvers that were needed for the Moon landing were practiced[44][45] and then finally the Moon landing was made on the Apollo 11 mission in July 1969.[46] In 1961 President Kennedy had introduced the Apollo Program and set the deadline for a successful Moon landing at the end of the same decade. It was done by a narrow margin.[47]
The first person to stand on the Moon was Neil Armstrong and after him Buzz Aldrin while Michael Collins orbited above. Five subsequent Apollo missions also landed astronauts on the Moon, the last in December 1972. In these six Apollo spaceflights twelve men walked on the Moon. These missions returned a wealth of scientific data and 381.7 kilograms (842 lb) of lunar samples. Experiments included soil mechanics, meteoroids, seismic, heat flow, lunar ranging, magnetic fields, and solar wind experiments.[48] The Moon landing marked the end of the space race and as a gesture, Armstrong mentioned mankind[49] when he stepped down on the Moon.
Apollo set major milestones in human spaceflight. It stands alone in sending manned missions beyond low Earth orbit, and landing humans on another celestial body.[50] Apollo 8 was the first manned spacecraft to orbit another celestial body, while Apollo 17 marked the last moonwalk and the last manned mission beyond low Earth orbit. The program spurred advances in many areas of technology peripheral to rocketry and manned spaceflight, including avionics, telecommunications, and computers. Apollo sparked interest in many fields of engineering and left many physical facilities and machines developed for the program as landmarks. Many objects and artifacts from the program are on display at various locations throughout the world, notably at the Smithsonian's Air and Space Museums.
Skylab was the United States' first and only independently built space station.[51] The 169,950 lb (77,088 kg) orbital workshop was launched on May 14, 1973, into a 235-nautical-mile (435 km) orbit inclined at 50° to the equator. Damaged during launch by the loss of its thermal protection and one electricity-generating solar panel, it was repaired to functionality by its first crew. It was occupied for a total of 171 days by 3 successive crews in 1973 and 1974.[51] It included a laboratory for studying the effects of microgravity, and a solar observatory.[51] NASA planned to have a Space Shuttle dock with, and elevate Skylab to a higher safe altitude, but the Shuttle was not ready for flight before Skylab's re-entry on July 11, 1979.[52]
Apollo spacecraft were used for bringing astronauts to and from the Skylab. Three three-man crews stayed aboard the station for periods of 28, 59, and 84 days. Skylab's habitable volume was 319.8 cubic meters (11,290 cu ft), which was 30.7 times bigger than that of the Apollo Command Module.[52]
In the 1970s the cold war was thawing and as a consequence the Apollo-Soyuz Test Project (ASTP) was introduced. It was the first joint flight of the U.S. and Soviet space programs. The mission took place in July 1975. For the United States, it was the last Apollo flight, as well as the last manned space launch until the flight of the first Space Shuttle in April 1981.[53] Manned Skylab and ASTP missions used the smaller Saturn IB with Apollo CSM, not the Saturn V.
The mission included both joint and separate scientific experiments, and provided useful engineering experience for future joint US–Russian space flights, such as the Shuttle–Mir Program[54] and the International Space Station.
The Space Shuttle became the major focus of NASA in the late 1970s and the 1980s. Planned as a frequently launchable and mostly reusable vehicle, four space shuttle orbiters were built by 1985. The first to launch, Columbia, did so on April 12, 1981,[55] the 20th anniversary of the first space flight by Yuri Gagarin.[56]
Its major components were a rocket plane orbiter with an external fuel tank and two solid fuel launch rockets at its side. The external tank, which was bigger than the spacecraft itself, was the only component that was not reused. The shuttle could orbit in altitudes of 185 – 643 km (115 – 400 miles)[57] and carry a maximum payload (to low orbit) of 24,400 kg (54,000 lb).[58] Missions could last from 5 to 17 days and crews could be from 2 to 8 astronauts.[57]
On 20 missions (1983–1998) the Space Shuttle carried Spacelab, a space laboratory designed in cooperation with the ESA. Spacelab was not designed for independent orbital flight, but remained in the Shuttle's cargo bay as the astronauts entered and left it through an airlock.[59] Another famous series of missions were the launch and later successful repair of the Hubble space telescope 1990 and 1993[60]
In 1995 Russian-American interaction resumed with the Shuttle-Mir missions (1995–1998). Once more an American vehicle docked with a Russian craft, this time a full-fledged space station. This cooperation has continued to 2011, with Russia and the United States the two biggest partners in the largest space station ever built: the International Space Station (ISS). The strength of their cooperation on this project was even more evident when NASA began relying on Russian launch vehicles to service the ISS during the two-year grounding of the shuttle fleet following the 2003 Space Shuttle Columbia disaster.
The shuttle fleet lost two orbiters and 14 astronauts in two disasters: Challenger in 1986, and Columbia in 2003.[61] While the 1986 loss was mitigated by building the Space Shuttle Endeavour from replacement parts, NASA did not build another orbiter to replace the second loss.[61] NASA's Space Shuttle program had 135 missions when the program ended with the successful landing of the Space Shuttle Atlantis at the Kennedy Space Center on July 21, 2011. The program spanned 30 years with over 300 astronauts sent into space.[62]
The ISS combines the Japanese Kibō laboratory with three space station projects, the Soviet/Russian Mir-2, the American Freedom, and the European Columbus.[63] Budget constraints led to the merger of these projects into a single multi-national program in the 1990s. The station consists of pressurized modules, external trusses, solar arrays and other components, which have been launched by Russian Proton and Soyuz rockets, and US Space Shuttles.[63] It is currently being assembled in Low Earth Orbit. The construction began in 1998 and construction of the US Orbital Segment was completed in 2011; operations are expected to continue until at least 2020.[64] The station can be seen from the Earth with the naked eye and, as of 2011[update], is the largest artificial satellite in Earth orbit with a mass and volume larger than that of any previous space station.[65]
As mentioned it is a joint project between the five participating space agencies, NASA, the Russian RKA, the Japanese JAXA, the European ESA, and the Canadian CSA.[66][67] The ownership and use of the space station is established in intergovernmental treaties and agreements[68] which divide the station into two areas and allow Russia to retain full ownership of the Russian Orbital Segment,[69] with the US Segment allocated between the other international partners.[68] The station is serviced by Soyuz and Progress spacecraft, the Automated Transfer Vehicle, and the H-II Transfer Vehicle[67] and has been visited by astronauts and cosmonauts from 15 different nations.[70] The Space Shuttle, before its retirement was also used for cargo and crew transfer.
In 2012, it is expected that the American Commercial Resupply Service vehicles, the SpaceX Dragon and the Orbital Sciences' Cygnus, will begin to service the space station with cargo.[71]
On February 1st, 2010, the American Commercial Crew Development (CCDev) program was initiated with the purpose of creating commercially operated spacecraft capable of delivering crew to the ISS.[72] These spacecraft are expected to become operational in the mid 2010s.[73]
More than 1,000 unmanned missions have been designed to explore the earth and parts of the solar system.[74] Apart from exploration also communication satellites have been launched by NASA.[75] The missions have been launched directly from earth or by space shuttle, which again could launch the satellite itself or a vehicle containing the satellite.
The first mission was Explorer 1, which started as an ABMA/JPL project during the early space race. It was launched in January 1958, two month after Sputnik. At the creation of NASA it was transferred to this agency and still continues to this day (2011). Its missions have been focusing on the Earth and the Sun measuring among others magnetic fields and solar wind.[76] A more recent Earth mission, not related to the Explorer program, was the Hubble telescope, which as mentioned above was brought into orbit in 1990.[77]
The closest planets Mars, Venus and Mercury have been the goal of at least 4 programs. The first was Mariner in the 1960s and ‘70s, which visited all three of them. Mariner was also the first to make a planetary flyby, to take the first pictures from another planet, the first planetary orbiter, and the first to make a gravity assist maneuver. This is a technique where the satellite takes advantage of the gravity and velocity of planets to reach its destination.[78]
The first successful landing on Mars was made by Viking I in 1976. 20 years later a rover was landed on Mars by Mars Pathfinder.[79]
Outside Mars, Jupiter was first visited by Pioneer 10 in 1973. More than 20 years later Galileo sent a probe into the planets’ atmosphere.[80] The first spacecraft to leave the solar system was Pioneer 10 in 1983.[81] At a time it was the most distant spacecraft, but it is now passed by Voyager 2.[82]
Both the Pioneer and the Voyager program carries messages from the Earth to extraterrestrial life.[83][84] A problem with far space travel is communication. For instance, at present it takes about 3 hours for a radio signal to reach the New Horizon spacecraft at a point more than half way to Pluto.[85] Contact with Pioneer 10 was lost in 2003.[86]
On 26 November 2011, NASA's Mars Science Laboratory mission was successfully launched for Mars. The mission is scheduled to land the robotic "Curiosity" rover on the surface of Mars in August 2012, whereupon the rover will search for evidence of past or present life on Mars.[87][88]
NASA's ongoing investigations include in-depth surveys of Mars and Saturn and studies of the Earth and the Sun. Other active spacecraft missions are MESSENGER for Mercury, New Horizons (for Jupiter, Pluto, and beyond), and Dawn for the asteroid belt. NASA continued to support in situ exploration beyond the asteroid belt, including Pioneer and Voyager traverses into the unexplored trans-Pluto region, and Gas Giant orbiters Galileo (1989–2003), Cassini, and Juno (2011–).
The New Horizons mission to Pluto was launched in 2006 and aiming for Pluto flyby in 2015. The probe received a gravity assist from Jupiter in February 2007, examining some of Jupiter's inner moons and testing on-board instruments during the fly-by. On the horizon of NASA's plans is the MAVEN spacecraft as part of the Mars Scout Program to study the atmosphere of Mars.[89]
On December 4, 2006, NASA announced it was planning a permanent moon base.[90] The goal was to start building the moon base by 2020, and by 2024, have a fully functional base that would allow for crew rotations and in-situ resource utilization. However in 2009, the Augustine Committee found the program to be on a "unsustainable trajectory."[91] In 2010, President Barack Obama halted existing plans, including the Moon base, and directed a generic focus on manned missions to asteroids and Mars, as well as extending support for the International Space Station.[92]
On April 18, 2011, NASA awarded nearly $270 million to four companies to develop U.S. vehicles that could fly astronauts to the ISS as part of the CCDev 2 program.[93]
In September 2011, NASA announced the start of the Space Launch System program to develop a human-rated heavy lift vehicle. The Space Launch System is intended to launch the Orion Multi-Purpose Crew Vehicle and other elements towards the Moon, near-Earth asteroids, and one day Mars.[94] The Orion MPCV is planned for an unmanned test launch on a Delta IV Heavy rocket around late 2013.[95]
A variety of large-scale medical studies are being conducted in space via the National Space Biomedical Research Institute (NSBRI). Prominent among these is the Advanced Diagnostic Ultrasound in Microgravity Study in which Astronauts (including former ISS Commanders Leroy Chiao and Gennady Padalka) perform ultrasound scans under the guidance of remote experts to diagnose and potentially treat hundreds of medical conditions in space. Usually, there is no physician onboard the International Space Station and diagnosis of medical conditions is challenging. In addition, Astronauts are susceptible to a variety of health risks including decompression sickness, barotrauma, immunodeficiencies, loss of bone and muscle, orthostatic intolerance due to volume loss, sleep disturbances, and radiation injury. Ultrasound offers a unique opportunity to monitor these conditions in space. This study's techniques are now being applied to cover professional and Olympic sports injuries as well as ultrasound performed by non-expert operators in populations such as medical and high school students. It is anticipated that remote guided ultrasound will have application on Earth in emergency and rural care situations, where access to a trained physician is often rare.[96][97][98]
In the middle of the 20th century[clarification needed] NASA augmented its mission of Earth’s observation and redirected it toward environmental quality. The result was the launch of Earth Observing System (EOS) in 1980s, which was able to monitor one of the global environmental problems—ozone depletion.[99] The first comprehensive worldwide measurements were obtained in 1978 with the Nimbus-7 satellite and NASA scientists at the Goddard Institute for Space Studies.[100]
In one of the nation's largest restoration projects, NASA technology helps state and federal government reclaim 15,100 acres (61 km2) of salt evaporation ponds in South San Francisco Bay. Satellite sensors are used by scientists to study the effect of salt evaporation on local ecology.[101]
NASA has started Energy Efficiency and Water Conservation Program as an agency-wide program directed to prevent pollution and reduce energy and water utilization. It helps to ensure that NASA meets its federal stewardship responsibilities for the environment.[102]
Understanding of natural and human-induced changes on the global environment is the main objective of NASA's Earth Science Enterprise. NASA currently has more than a dozen Earth science spacecraft/instruments in orbit studying all aspects of the Earth system (oceans, land, atmosphere, biosphere, cyrosphere), with several more planned for launch in the next few years.[103]
NASA is working in cooperation with National Renewable Energy Laboratory (NREL). The goal is to produce worldwide solar resource maps with great local detail.[104] NASA was also one of the main participants in the evaluation innovative technologies for the clean up of the sources for dense non-aqueous phase liquids (DNAPLs). On April 6, 1999, the agency signed The Memorandum of Agreement (MOA) along with the United States Environmental Protection Agency, DOE, and USAF authorizing all the above organizations to conduct necessary tests at the John F. Kennedy Space center. The main purpose was to evaluate two innovative in-situ remediation technologies, thermal removal and oxidation destruction of DNAPLs.[105] National Space Agency made a partnership with Military Services and Defense Contract Management Agency named the “Joint Group on Pollution Prevention”. The group is working on reduction or elimination of hazardous materials or processes.[106]
On May 8, 2003, Environmental Protection Agency recognized NASA as the first federal agency to directly use landfill gas to produce energy at one of its facilities—the Goddard Space Flight Center, Greenbelt, Maryland.[107]
NASA's facilities are research, construction and communication centers to help its missions. Some facilities serve more than one application for historic or administrative reasons. NASA also operates a short-line railroad at the Kennedy Space Center and own special aircrafts for instance two Boeing 747 which were used for transport of the Space Shuttle orbiter.
John F. Kennedy Space Center (KSC), is one of the best-known NASA facilities. It has been the launch site for every United States human space flight since 1968. Although such flights are currently on pause, KSC continues to manage and operate unmanned rocket launch facilities for America's civilian space program from three pads at the adjoining Cape Canaveral Air Force Station.
Another major facility is Marshall Space Flight Center in Huntsville, Alabama at which the Saturn 5 rocket and Skylab were developed.[108] The JPL, mentioned above, was together with ABMA one of the agencies behind Explorer 1, the first American space mission.
The administrator is the highest-ranking NASA official and serves as the senior space science adviser to the President of the United States. The administration is located at NASA Headquarters in Washington, DC and provides overall guidance and direction to the agency.[109]
The first Administrator was Dr. T. Keith Glennan; during his term he brought together the disparate projects in space development research in the US.[110]
Some administrators like Richard H. Truly (administrator 1989–1992) have been astronauts themselves. Among others he piloted Space Shuttle Columbia in 1981 on its second flight and later supervised the rebuilding of the shuttle program after the disaster of Challenger in 1986[111]
On May 24, 2009, President Obama announced the nomination of Charles Bolden as NASA administrator, and Lori Garver as deputy administrator.[112] Bolden was confirmed by the US Senate on July 15, 2009 as the twelfth administrator of NASA. Lori Garver was confirmed as NASA's deputy administrator.[113]
Public perception of the NASA budget may be very different from reality and has been the subject of controversy since the agency's creation.
A 1997 poll reported that Americans had an average estimate of 20% for NASA's share of the federal budget. In reality, NASA's budget has been between 0.5% and 1% from the late 1960s on.
NASA budget briefly peaked at over 4% of the federal budget in the mid-1960s during the build up to the Apollo program.[114]
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Translations:
Nasa |
Dansk (Danish)
abbr. - National Aeronautics and Space Administration
Nederlands (Dutch)
Nationaal Luchtvaart en Ruimte Beheer (V.S.)
Français (French)
abbr. - (abrév = National Aeronautics and Space Administration) NASA
Deutsch (German)
abbr. - am. Raumfahrtbehörde NASA
Ελληνική (Greek)
abbr. - Εθνική Υπηρεσία Αεροναυτικής και Διαστήματος
Português (Portuguese)
abbr. - NASA
Русский (Russian)
Нац. Упр. по Аэронав. и Иссл. Косм. Простр.
Español (Spanish)
abbr. - agencia espacial norteamericana
Svenska (Swedish)
abbr. - National Aeronautics and Space Administration, organ f. civil rymdfart i USA
中文(简体)(Chinese (Simplified))
美国宇航局
中文(繁體)(Chinese (Traditional))
abbr. - 美國太空總署
한국어 (Korean)
abbr. - national aeronautics and space administration(미 항공 우주국)
日本語 (Japanese)
abbr. - アメリカ航空宇宙局
العربيه (Arabic)
(اختصار) اختصار ل National Aeronautics & Space Administration : , وكاله الفضاء الامريكيه " ناسا "
עברית (Hebrew)
abbr. - נאס"א (רשות החלל והתעופה הלאומית בארה"ב)
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