NASA, the National Aeronautics and Space Administration, is an independent agency of the US federal government. Established in 1958, it succeeded the NACA, adopting a civilian orientation for American space efforts. Headquartered in Washington, D.C., NASA is organized into mission directorates covering Science, Space Operations, Exploration Systems Development, Space Technology, Aeronautics Research, and Mission Support, and it operates ten field centers across the US. NASA has spearheaded numerous space exploration programs, including Project Mercury, Project Gemini, the Apollo program, Skylab, and the Space Shuttle.
In 1914, the United States Congress created the Aviation Section of the US Army Signal Corps, recognizing the country's lag in aviation capability compared to Europe.
In 1915, the National Advisory Committee for Aeronautics (NACA) was established to foster aeronautical research and development.
In 1956, the Air Force's Man in Space Soonest project was formed and served as a foundation for Project Mercury.
On February 1, 1958, the Army Ballistic Missile Agency launched Explorer 1, which became America's first satellite.
On July 29, 1958, the National Aeronautics and Space Act was signed, officially establishing NASA.
On October 1, 1958, NASA officially began its operations.
In 1958, NASA was established, succeeding the National Advisory Committee for Aeronautics (NACA). This transition marked a shift towards a civilian-oriented space program, emphasizing peaceful applications in space science.
In 1958, the National Aeronautics and Space Act established NASA's mission, which included Earth science study.
In 1959, the NASA Sounding Rocket Program (NSRP) began operations at the Wallops Flight Facility, providing launch capability, payload development, and field operations support for suborbital missions.
In 1960, NASA launched the Television Infrared Observation Satellite (TIROS), the first weather satellite, to study Earth. NASA cooperated with the United States Weather Bureau on future TIROS missions.
On May 5, 1961, Alan Shepard became the first American to enter space, conducting a suborbital spaceflight in the Freedom 7.
On May 25, 1961, President John F. Kennedy openly declared the goal of landing an American on the Moon and returning him safely to Earth by the end of the 1960s in his "Urgent National Needs" speech to the United States Congress.
On February 20, 1962, John Glenn conducted NASA's first orbital spaceflight in the Friendship 7, completing three full orbits.
On September 12, 1962, President Kennedy gave his "We choose to go to the Moon" speech at Rice University, aiming to reinforce public support for the Apollo program.
In May 1963, Gordon Cooper flew the sixth and final Mercury mission in the Faith 7, performing 22 orbits over 34 hours.
In 1964, President Kennedy was able to protect NASA's growing budget, despite attacks from the former president Dwight Eisenhower and presidential candidate Barry Goldwater.
In 1967, following the Apollo 1 accident, Congress directed NASA to establish an Aerospace Safety Advisory Panel (ASAP) to advise the NASA Administrator on safety issues in air and space programs.
In 1968, NASA began the Apollo program missions, which significantly contributed to space exploration.
In 1968, the Apollo 8 mission became the first crewed spacecraft to leave low Earth orbit and reach the Moon, orbiting it ten times on December 24 and 25 before safely returning to Earth.
In 1969, Apollo 11 landed on the Moon using a mix of United States customary units and metric units.
In 1969, NASA designated the Johnson Space Center as the lead center for the design, development, and manufacturing of the Space Shuttle orbiter. The Marshall Space Flight Center would lead the development of the launch system.
In 1969, following the Apollo 11 mission, NASA began to exert a notable influence on American popular culture, becoming a subject of numerous major films.
In 1971, NASA established the Space Program Advisory Council and the Research and Technology Advisory Council to provide advisory support to the administrator.
In 1972, NASA continued the Apollo program missions, which significantly contributed to space exploration.
In 1972, NASA's Apollo 17 concluded the Apollo program, marking the end of six lunar landings.
In 1972, official development of the Space Shuttle began, with Rockwell International contracted to design the orbiter and engines, Martin Marietta for the external fuel tank, and Morton Thiokol for the solid rocket boosters.
In 1973, following the end of the Apollo lunar missions, NASA launched its first space station, Skylab, on the final launch of the Saturn V.
In 1974, Skylab hosted nine missions and was decommissioned.
In 1975, the Apollo–Soyuz mission marked the first international spaceflight and a major diplomatic achievement between the Cold War rivals. It also marked the last flight of the Apollo capsule.
In 1976, the Viking program consisted of two landings on Mars.
In 1977, the Space Program Advisory Council and the Research and Technology Advisory Council were combined to create the NASA Advisory Council (NAC).
In 1977, the Voyager program launched, conducting flybys of Jupiter and Saturn, Neptune, and Uranus on a trajectory to leave the Solar System.
In 1979, Skylab was deorbited, two years before the first launch of the Space Shuttle.
In 1981, the first Space Shuttle flight occurred when the Columbia launched on the STS-1 mission. It was designed to serve as a flight test for the new spaceplane.
In 1984, President Ronald Reagan declared his support for building a larger space station, envisioning it as an orbital laboratory, repair station, and a jumping off point for lunar and Mars missions.
In 1984, the STS-41-C mission conducted the world's first on-orbit satellite servicing mission when the Challenger captured and repaired the malfunctioning Solar Maximum Mission satellite.
In 1985, NASA proposed the Space Station Freedom, intended as an international program. An international agreement to develop the program would be signed with thirteen countries.
In 1986, the Challenger disaster on the STS-51L mission resulted in the loss of the spacecraft and all seven astronauts on launch, grounding the entire space shuttle fleet for 36 months. This forced the 44 commercial companies that contracted with NASA to deploy their satellites to return to expendable launch vehicles.
In 1990, the Hubble Space Telescope was launched on STS-31 from the Discovery, with the capability of viewing galaxies 15 billion light years away.
Since 1990, NASA's Launch Services Program (LSP) has been purchasing expendable launch vehicle launch services directly from commercial providers, whenever possible, for its scientific and applications missions.
In 1991, the Compton Gamma Ray Observatory was launched from the Atlantis on STS-37, discovering a possible source of antimatter at the center of the Milky Way.
In the early 1990s, several redesigns to reduce the cost of Space Station Freedom were conducted in 1992, stripping away many of its functions.
With the end of the Cold War, the Rockwell X-30 National Aerospace Plane program was canceled in 1992 before reaching flight status, ending a joint NASA-Department of Defense effort.
In September 1993, NASA and Roscosmos initiated cooperation on the development and operation of the International Space Station (ISS), using launch systems from both countries.
In 1993, President Bill Clinton directed that costs be significantly reduced for the Space Station Freedom program, while ensuring aerospace industry jobs were not lost and the Russians were included.
In 1993, US budget constraints led to the merger of NASA's Space Station Freedom project with the Russian Mir-2 station, the European Columbus station, and the Japanese Kibō laboratory module into a single multi-national program called the International Space Station.
In 1993, the Clinton Administration announced that the Space Station Freedom would become the International Space Station in an agreement with the Russian Federation.
In 1994, the Socioeconomic Data and Applications Center (SEDAC) was founded to archive and distribute data related to human interactions in the environment.
In 1994, the first Russian cosmonaut flew on the STS-60 mission, marking a milestone in collaboration between the United States and Russia.
In 1996, NASA launched the Mars Global Surveyor orbiter and Mars Pathfinder, which deployed the first Mars rover, Sojourner.
In 1998, a series of orbital accidents on the space station spelled an end to the Shuttle-Mir program, concluding a period of joint US-Russian space cooperation.
In 1998, the United States Congress gave NASA a mandate to detect 90% of near-Earth asteroids over 1 km (0.62 mi) diameter (that threaten global devastation) by 2008.
In 1998, the on-orbit assembly of the International Space Station began, using components manufactured in various factories around the world and launched by Russian Proton and Soyuz rockets, and the American Space Shuttle.
Since 1998, the United States, the European Union, and other nations had been scanning the sky for NEOs in an effort called Spaceguard.
On September 23, 1999, a mix-up between NASA's use of SI units and Lockheed Martin Space's use of US units resulted in the loss of the Mars Climate Orbiter.
In 1999, NASA visited 433 Eros with the NEAR Shoemaker spacecraft which entered its orbit in 2000, closely imaging the asteroid with various instruments at that time.
In 1999, the Chandra X-ray Observatory was launched from the Columbia on STS-93, observing black holes, quasars, supernova, and dark matter.
In 2000, the NEAR Shoemaker spacecraft entered the orbit of 433 Eros, closely imaging the asteroid with various instruments at that time.
Due to technical challenges, the Lockheed Martin X-33 demonstrator of the VentureStar spaceplane was cancelled in 2001, despite being the first time a commercial space company directly expended a significant amount of its resources into spacecraft development.
In 2001, the 2001 Mars Odyssey orbiter reached Mars.
On May 8, 2003, the Environmental Protection Agency recognized NASA as the first federal agency to directly use landfill gas to produce energy at the Goddard Space Flight Center in Greenbelt, Maryland.
Following the Space Shuttle Columbia disaster in 2003, NASA was forced to rely on Russian Soyuz launches for its astronauts to reach the International Space Station.
Following the Space Shuttle Columbia disaster in 2003, President Bush started the Constellation program to smoothly replace the Space Shuttle and expand space exploration beyond low Earth orbit.
In 2003, the Columbia was destroyed upon reentry during the STS-107 mission, resulting in the loss of the spacecraft and all seven astronauts. This marked the beginning of the retiring of the Space Shuttle program.
In 2003, the Spitzer Space Telescope was launched from a Delta II rocket, discovering the existence of brown dwarf stars.
In November 2004, the Neil Gehrels Swift Observatory, designed to observe gamma-ray bursts and their afterglows, was launched as a collaborative effort among NASA's Goddard Space Flight Center, the United Kingdom, and Italy.
In 2004, NASA launched missions to Mercury, with the MESSENGER probe demonstrating the first use of a solar sail.
In 2004, the Spirit and Opportunity rovers landed on Mars.
In 2005, the Mars Reconnaissance Orbiter was launched to Mars.
In 2005, the original USA Spaceguard mandate was extended by the George E. Brown, Jr. Near-Earth Object Survey Act, which calls for NASA to detect 90% of NEOs with diameters of 140 m (460 ft) or greater, by 2020.
In late 2005, NASAcast, the official audio and video podcast of the NASA website, was created to provide the latest audio and video features from NASA, including NASA TV's This Week at NASA and educational materials.
The 2005 George E. Brown, Jr. Near-Earth Object Survey Act extended the USA Spaceguard mandate, tasking NASA with detecting a specified percentage of near-Earth objects by a target date.
In 2006, NASA and Air Force Space Command signed an agreement, which was replaced by a new memorandum of understanding with the Space Force in September 2020.
In 2006, the New Horizons mission was launched as the first spacecraft to visit Pluto and the Kuiper belt.
In 2006, the Space Shuttle returned to flight, conducting several mission to service the Hubble Space Telescope after the Columbia disaster.
On March 18, 2007, NASA released NASA EDGE, a video podcast exploring NASA missions, technologies, and projects.
In August 2007, NASA stated that all future missions and explorations of the Moon would be done entirely using the SI system to improve cooperation with international space agencies.
In 2007, NASA began collaborating with the Federal Aviation Administration and industry stakeholders to modernize the United States National Airspace System (NAS), with a goal to deliver major modernization components by 2025.
In 2008, the initial target year set in 1998 by the US Congress for NASA to detect 90% of near-Earth asteroids over 1 km in diameter.
Between May 2009 and until the retirement of the Space Shuttle, the International Space Station expedition crew size has been six crew members, increasing the research capabilities.
In 2009, the Kepler space telescope was launched to identify planets orbiting extrasolar stars that may be Terran and possibly harbor life.
In 2009, the WISE/NEOWISE mission was launched by NASA JPL as an infrared-wavelength astronomical space telescope.
The completion of the US Orbital Segment of the International Space Station occurred in 2009, marking a significant milestone in the station's construction.
In 2010, the Exploration Sciences Building was awarded the LEED Gold rating, highlighting NASA's environmental efforts.
The completion of the Russian Orbital Segment of the International Space Station occurred in 2010, finalizing the core structure of the station.
By 2011, NASA met the initial mandate set in 1998 by the US Congress to detect 90% of near-Earth asteroids over 1 km in diameter.
In 2011, NASA addressed environmental concerns associated with its cancelled Constellation program in accordance with the National Environmental Policy Act.
In 2011, the Space Shuttle program was retired following the STS-135 resupply mission to the International Space Station, marking the end of an era in spaceflight.
In 2011, the retirement of the Space Shuttle accelerated the International Space Station's completion, influencing the timeline and resources allocated to the project.
Since 2011, the Educational Launch of Nanosatellites (ELaNa) program has provided opportunities for NASA to work with university teams to test emerging technologies and commercial-off-the-shelf solutions by providing launch opportunities for developed CubeSats.
In 2012, the Curiosity rover discovered that the radiation levels on Mars were equal to those on the International Space Station, greatly increasing the possibility of human exploration, and observed the key chemical ingredients for life to occur.
In 2013, NASA repurposed the WISE mission as the NEOWISE mission to find potentially hazardous near-Earth asteroids and comets.
In 2013, the 20-meter Chelyabinsk meteor hit Russia, a reminder of the potential impact of NEOs.
In 2013, the Mars Atmosphere and Volatile Evolution (MAVEN) mission observed the Martian upper atmosphere and space environment.
In September 2014, NASA and the Indian Space Research Organisation (ISRO) signed a partnership to collaborate on and launch a joint radar mission, the NASA-ISRO Synthetic Aperture Radar (NISAR) mission.
In 2014, NASA started an annual competition named "Cubes in Space" jointly organized by NASA and I Doodle Learning to teach school students to design and build scientific experiments for space launch.
In 2014, the NASA Authorization Act reaffirmed the importance of the Aerospace Safety Advisory Panel (ASAP).
In 2014, the NASA-JAXA Global Precipitation Measurement mission was launched, including both NASA- and JAXA-supplied sensors on a NASA satellite launched on a JAXA rocket to provide frequent and accurate measurements of rainfall globally.
In 2014, the United States consumed 803 million US gallons of liquid fuels per day, while a single Falcon 9 rocket burns approximately 25,000 US gallons of kerosene fuel per launch, representing a small fraction of the total liquid fuel consumption.
In 2016, NASA established the Planetary Defense Coordination Office (PDCO) to catalog and track potentially hazardous near-Earth objects (NEO) and develop potential responses and defenses against these threats.
On June 21, 2017, the world's smallest satellite, KalamSAT, was launched as part of the "Cubes in Space" program.
In 2018, NASA along with other companies launched the CAUTION (CoAtings for Ultra High Temperature detectION) project to enhance the temperature range of the Thermal History Coating and improve the safety of jet engines while increasing efficiency and reducing CO2 emissions.
In 2018, the Interior exploration using Seismic Investigations Geodesy, and Heat Transport (InSight) studied the Martian interior.
In 2019, NASA announced the Artemis program, intending to return to the Moon and establish a permanent human presence. This was paired with the Artemis Accords with partner nations to establish rules of behavior and norms of space commercialization on the Moon.
In January 2020, NASA officials estimated it would take 30 years to find all objects meeting the 140 m size criteria, more than twice the timeframe that was built into the 2005 mandate.
As of January 2020, it is estimated that less than half of NEOs with diameters of 140 m or greater, have been found.
On July 29, 2020, NASA requested American universities to propose new technologies for extracting water from the lunar soil and developing power systems, to help conduct sustainable exploration of the Moon.
In September 2020, NASA and the Space Force formally acknowledged their joint role by signing a memorandum of understanding, replacing a similar document from 2006.
On December 18, 2020, Colonel Michael S. Hopkins, commander of SpaceX Crew-1, was commissioned into the Space Force from the International Space Station, signifying partnership between NASA and the Space Force.
In 2020, NASA won the Webby People's Voice Award for Green in the Web category.
In June 2021, NASA authorized the development of the NEO Surveyor spacecraft to reduce the projected duration to achieve the mandate down to 10 years.
In July 2021, NASA announced contract awards for the development of nuclear thermal propulsion reactors, with three contractors developing individual designs over 12 months for later evaluation by NASA and the US Department of Energy.
On September 27, 2021, Landsat 9, the most recent satellite in the Landsat series, was launched.
In December 2021, the James Webb Space Telescope (JWST) was launched on an Ariane 5 rocket to operate in a halo orbit around the Sun-Earth L2 point, designed for high-sensitivity infrared spectrum and imaging resolution.
In 2021, the James Webb Space Telescope, named after the NASA administrator who led the Apollo program, was launched as an infrared observatory intended to observe the formation of the first galaxies.
In 2021, the Perseverance rover carried the first extraplanetary aircraft, a helicopter named Ingenuity, to Mars.
In March 2022, the GOES-T satellite (later designated GOES-18 after launch) joined the fleet of US geostationary weather monitoring satellites.
On May 13, 2022, NASA and SpaceX Crew-4 astronauts successfully tested its rHEALTH ONE universal biomedical analyzer for its ability to identify and analyzer biomarkers, cells, microorganisms, and proteins in a spaceflight environment.
In June 2022, NASA conducted its first rocket launch from a commercial spaceport outside the US, launching a Black Brant IX from the Arnhem Space Centre in Australia.
In June 2022, Thomas Zurbuchen, head of the NASA Science Mission Directorate, confirmed the start of NASA's UAP independent study team to bring a scientific perspective to the study of unidentified aerial phenomena. He noted it as "high-risk, high-impact" research.
In June 2022, two NASA-sponsored CubeSats launched on a Virgin Orbit LauncherOne vehicle as the ELaNa 39 mission as part of the Educational Launch of Nanosatellites (ELaNa) program.
In July 2022, NASA and Roscosmos signed a deal to share space station flights, enabling crew from each country to ride on the systems provided by the other.
On September 26, 2022, the DART spacecraft successfully impacted the Dimorphos asteroid to test planetary defense concepts.
As of October 2022, nine satellites had been built under the Landsat program, with eight of them successfully operating in orbit, providing a unique resource for global change research and applications.
In 2022, NASA's X-57 Maxwell, an experimental all-electric aircraft, was scheduled to fly before the end of the year, after completing ground testing in its initial configuration.
In January 2023, NASA announced a partnership with the Defense Advanced Research Projects Agency (DARPA) on the Demonstration Rocket for Agile Cislunar Operations (DRACO) program to demonstrate a NTR engine in space.
As of June 2023, 22 countries had signed the Artemis Accords, which define a framework for cooperation in the peaceful exploration of the Moon, Mars, asteroids, and comets.
In July 2023, NASA and DARPA jointly announced the award of $499 million to Lockheed Martin to design and build an experimental NTR rocket to be launched in 2027.
In July 2023, NASA announced the upcoming launch of NASA+, a free, ad-free streaming service.
On November 8, 2023, NASA launched NASA+, a new streaming service offering live coverage of launches, documentaries, and original programs.
In 2023, NASA established the Moon to Mars Program office to oversee the various projects, mission architectures, and associated timelines relevant to lunar and Mars exploration and science.
The NEOWISE mission was extended into 2023.
Information regarding the directors leading NASA's 10 major field centers and subordinate facilities was valid as of December 23, 2024.
As of 2024, the International Space Station has been continuously occupied for the past 25 years and 17 days, having exceeded the previous record held by Mir. Expeditions typically consist of a crew of four.
In 2024, NASA was tasked by the US Government to create a Time standard for the Moon, to be called Coordinated Lunar Time.
On May 31, 2025, the administration's original nominee of Jared Isaacman was withdrawn as NASA administrator.
In July 2025, Acting NASA Administrator Sean Duffy issued a directive to fast-track plans for placing a nuclear reactor on the Moon to support the agency's Artemis program and maintain U.S. leadership in space exploration.
The NASA-ISRO Synthetic Aperture Radar (NISAR) mission was launched on July 30, 2025.
On November 4, 2025, Jared Isaacman was renominated for the position of NASA administrator.
As of 2025, Sean Duffy is the acting administrator for NASA.
The modernization effort to increase the safety, efficiency, capacity, access, flexibility, predictability, and resilience of the NAS while reducing the environmental impact of aviation is set for 2025.
The NEO Surveyor spacecraft, designed to survey the Solar System for potentially hazardous asteroids, is scheduled to launch in 2026.
The Time standard for the Moon, to be called Coordinated Lunar Time, is expected to be finalized in 2026.
In 2027, NASA and DARPA are planning to launch the experimental NTR rocket which is currently under development by Lockheed Martin.
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