This is a list of NASA missions, both crewed and

robotic Robotics is the interdisciplinary study and practice of the design, construction, operation, and use of robots. Within mechanical engineering, robotics is the design and construction of the physical structures of robots, while in computer s ...

, since the establishment of NASA in 1957. There are over 80 currently active science missions.

X-Plane program

Since 1945,

NACA The National Advisory Committee for Aeronautics (NACA) was a United States federal agency that was founded on March 3, 1915, to undertake, promote, and institutionalize aeronautical research. On October 1, 1958, the agency was dissolved and its ...

(NASA's predecessor) and, since January 26, 1958, NASA has conducted the X-Plane Program. The program was originally intended to create a family of

experimental aircraft An experimental aircraft is an aircraft intended for testing new aerospace technologies and design concepts. The term ''research aircraft'' or '' testbed aircraft'', by contrast, generally denotes aircraft modified to perform scientific studies, ...

not intended for production beyond the limited number of each design built solely for flight research. The first X-Plane, the

Bell X-1 The Bell X-1 (Bell Model 44) is a rocket engine–powered aircraft, designated originally as the XS-1, and was a joint National Advisory Committee for Aeronautics– U.S. Army Air Forces– U.S. Air Force supersonic research project built by B ...

, was the first rocket-powered airplane to break the

sound barrier The sound barrier or sonic barrier is the large increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound. When aircraft first approached the speed of sound, th ...

on October 14, 1947. X-Planes have set numerous milestones since then, both crewed and unpiloted.

Human spaceflight

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

has successfully launched over 200 crewed flights. Three have ended in failure, causing the death of the entire crew:

Apollo 1 Apollo 1, initially designated AS-204, was planned to be the first crewed mission of the Apollo program, the American undertaking to land the first man on the Moon. It was planned to launch on February 21, 1967, as the first low Earth orbital ...

(which never launched) in 1967 lost three crew members,

STS-51-L STS-51-L was the disastrous 25th mission of NASA's Space Shuttle program and the final flight of Space Shuttle ''Challenger''. It was planned as the first Teacher in Space Project flight in addition to observing Halley's Comet for six day ...

( the ''Challenger'' disaster) in 1986, and

STS-107 STS-107 was the 113th flight of the Space Shuttle program, and the 28th(twenty eigth) and final flight of Space Shuttle ''Columbia''. The mission ended on the 1st of February 2003, with the Space Shuttle ''Columbia'' disaster which killed al ...

( the ''Columbia'' disaster) in 2003. Notes:

Early Obama administration review

In May 2009, the

Obama administration Barack Obama's tenure as the 44th president of the United States began with his first inauguration on January 20, 2009, and ended on January 20, 2017. Obama, a Democrat from Illinois, took office following his victory over Republican nomine ...

announced the launch of an independent review of planned U.S. human space flight activities with the goal of ensuring that the nation is on a vigorous and sustainable path to achieving its boldest aspirations in space. The review was conducted by a panel of experts led by

Norman Augustine Norman Ralph "Norm" Augustine (born July 27, 1935) is a U.S. aerospace businessman who served as United States Under Secretary of the Army from 1975 to 1977. Augustine served as chairman and CEO of the Lockheed Martin Corporation. He was chairm ...

, the former CEO of

Lockheed Martin The Lockheed Martin Corporation is an American Arms industry, defense and aerospace manufacturer with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta on March 15, 1995. It is headquartered in North ...

, who served on the President's Council of Advisers on Science and Technology under both

Democrat Democrat, Democrats, or Democratic may refer to: Politics *A proponent of democracy, or democratic government; a form of government involving rule by the people. *A member of a Democratic Party: **Democratic Party (Cyprus) (DCY) **Democratic Part ...

and Republican presidents. The " Review of United States Human Space Flight Plans" was to examine ongoing and planned National Aeronautics and Space Administration (

) development activities, as well as potential alternatives and present options for advancing a safe, innovative, affordable, and sustainable human space flight program in the years following Space Shuttle retirement. The panel worked closely with NASA and sought input from the

United States Congress The United States Congress is the legislature, legislative branch of the federal government of the United States. It is a Bicameralism, bicameral legislature, including a Lower house, lower body, the United States House of Representatives, ...

the White House The White House is the official residence and workplace of the president of the United States. Located at 1600 Pennsylvania Avenue NW in Washington, D.C., it has served as the residence of every U.S. president since John Adams in 1800 whe ...

, the public, industry, and international partners as it developed its options. It presented its results on October 22, 2009. In February 2010, Obama announced his proposal to cancel the

Constellation program The Constellation program (abbreviated CxP) was a crewed spaceflight program developed by NASA, the space agency of the United States, from 2005 to 2009. The major goals of the program were "completion of the International Space Station" and a " ...

as part of his reform program. Constellation was officially canceled by the NASA Budget Authorization Act on October 11, 2010.

Future

NASA brought the

Orion spacecraft Orion (Orion Multi-Purpose Crew Vehicle or Orion MPCV) is a partially reusable crewed spacecraft used in NASA's Artemis program. The spacecraft consists of a Crew Module (CM) space capsule designed by Lockheed Martin that is paired with a Eu ...

back to life from the defunct

and successfully test-launched the first capsule on December 5, 2014, aboard EFT-1. After a near-perfect flight traveling above Earth, the spacecraft was recovered for study. NASA plans to use the Orion crew vehicle to send humans to deep space locations such as the Moon and Mars starting in the 2020s. Orion will be powered by NASA's new heavy-lift vehicle, the

Space Launch System The Space Launch System (SLS) is an American Super heavy-lift launch vehicle, super heavy-lift Expendable launch system, expendable launch vehicle used by NASA. As the primary launch vehicle of the Artemis program, Artemis Moon landing progra ...

(SLS), which is currently under development.

Artemis I Artemis I, formerly Exploration Mission-1 (EM-1), was an uncrewed Lunar orbit, Moon-orbiting mission that was launched in November 2022. As the first major spaceflight of NASA's Artemis program, Artemis I marked the agency's return to lunar e ...

was the first flight of the SLS and was launched as a test of the completed Orion and SLS system. During the mission, an uncrewed Orion capsule spent 10 days in a distant retrograde orbit around the Moon before returning to Earth.

Artemis II Artemis II is a planned mission under the NASA-led Artemis program, set to be the second launch of the Space Launch System (SLS) rocket and the first crewed flight of the Orion (spacecraft), Orion spacecraft. Scheduled to launch in early 2026, ...

, the first crewed mission of the program, will launch four astronauts in 2025 on a free-return flyby of the Moon at a distance of . After Artemis II, the Power and Propulsion Element of the

Lunar Gateway The Lunar Gateway, or simply Gateway, is a planned space station which is to be assembled in orbit around the Moon. The Gateway is intended to serve as a communication hub, science laboratory, and habitation module for astronauts as part ...

and three components of an expendable lunar lander are planned to be delivered on multiple launches from commercial

launch service provider A launch service provider or launch vehicle provider is a type of company that delivers a payload into space, including the delivery of satellites, spacecraft, cargo, astronauts, and potentially space tourists. Services provided may include furnis ...

Artemis III Artemis III is planned to be the first crewed Moon landing mission of the Artemis program and the first crewed flight of the Starship HLS lander. Artemis III is planned to be the second crewed Artemis mission and the first crewed lunar landing ...

is planned to launch in 2026 aboard an SLS Block 1 rocket and will use the minimalist Gateway and expendable lander to achieve the first crewed lunar landing of the program. The flight is planned to touch down on the

lunar south pole The lunar south pole is the southernmost point on the Moon. It is of interest to scientists because of the lunar water, occurrence of water ice in Crater of eternal darkness, permanently shadowed areas around it. The lunar south pole region fea ...

region, with two astronauts staying there for about one week.

Robotic missions

Suborbital

* Anomalous Transport Rocket Experiment (ATREX) – five consecutive launches, 80 seconds apart on March 27, 2012, studied the high-altitude jet stream. *

NASA Sounding Rocket Program The NASA Sounding Rocket Program (NSRP) is a NASA run program of sounding rockets which has been operating since 1959. The missions carried out by this program are primarily used for scientific research, particularly low gravity and material bas ...

SHIELDS A shield is a piece of personal armour held in the hand, which may or may not be strapped to the wrist or forearm. Shields are used to intercept specific attacks, whether from close-ranged weaponry like spears or long ranged projectiles suc ...

– launched April 19, 2021, collected data from the heliopause.

Earth and Heliocentric satellites

Biosatellite program NASA, NASA's Biosatellite program was a series of three Uncrewed spacecraft, uncrewed artificial satellites to assess the effects of spaceflight, especially radiation and weightlessness, on living organisms. Each was designed to reenter Earth's at ...

:* ''

Biosatellite 1 Biosatellite 1, also known as Biosat 1 and Biosatellite A, was the first mission in NASA's Biosatellite program. It was launched on December 14, 1966, by a Delta G rocket from Launch Complex 17A of the Cape Canaveral Air Force Station into an or ...

'', launched December 1966, :* '' Biosatellite 2'', launched September 1967, :* '' Biosatellite 3'', launched June 1969, *

Cosmic Background Explorer The Cosmic Background Explorer (COBE ), also referred to as Explorer 66, was a NASA satellite dedicated to cosmology, which operated from 1989 to 1993. Its goals were to investigate the cosmic microwave background radiation (CMB or CMBR) of th ...

(COBE), launched November 1989, *

Upper Atmosphere Research Satellite The Upper Atmosphere Research Satellite (UARS) was a NASA-operated orbital observatory whose mission was to study the Earth's atmosphere, particularly the protective ozone layer. The satellite was deployed from Space Shuttle Discovery, Space Shu ...

(UARS), launched September 1991, *

Gravity Recovery and Climate Experiment The Gravity Recovery and Climate Experiment (GRACE) was a joint mission of NASA and the German Aerospace Center (DLR). Twin satellites took detailed measurements of Earth's gravity field anomalies from its launch in March 2002 to the end of it ...

(GRACE), launched March 2002, * Gravity Recover and Climate Experiment - Follow-On (GRACE-FO), launched May 2018, *

NPOESS Preparatory Project The Suomi National Polar-orbiting Partnership (Suomi NPP), previously known as the National Polar-orbiting Operational Environmental Satellite System Preparatory Project (NPP) and NPP-Bridge, is a weather satellite operated by the United States ...

(NPP) – National Polar-orbiting Operational Environmental Satellite System (NPOESS), launched October 2011, * Echo 1 and 2, launched August 1960 and January 1964, respectively, *

Great Observatories NASA's series of Great Observatories satellites are four large, powerful space telescope, space-based astronomical telescopes launched between 1990 and 2003. They were built with different technology to examine specific wavelength/energy region ...

Hubble Space Telescope The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the Orbiting Solar Observatory, first space telescope, but it is one of the largest and most ...

, launched April 1990, :*

Compton Gamma Ray Observatory The Compton Gamma Ray Observatory (CGRO) was a space observatory detecting photons with photon energy, energies from 20 kElectronvolt#Properties, eV to 30 GeV, in Earth orbit from 1991 to 2000. The observatory featured four main tel ...

, launched April 1991, :*

Chandra X-ray Observatory The Chandra X-ray Observatory (CXO), previously known as the Advanced X-ray Astrophysics Facility (AXAF), is a Flagship-class space telescope launched aboard the during STS-93 by NASA on July 23, 1999. Chandra is sensitive to X-ray sources ...

, launched July 1999, :*

Spitzer Space Telescope The Spitzer Space Telescope, formerly the Space Infrared Telescope Facility (SIRTF), was an infrared space telescope launched in 2003, that was deactivated when operations ended on 30 January 2020. Spitzer was the third space telescope dedicate ...

, launched August 2003, * High Energy Astronomy Observatory program :*

High Energy Astronomy Observatory 1 HEAO-1 was an X-ray telescope launched in 1977. HEAO-1 surveyed the sky in the X-ray portion of the electromagnetic spectrum (0.2 keV – 10 MeV), providing nearly constant monitoring of X-ray sources near the ecliptic poles and more detailed stu ...

(HEAO 1), launched August 1977, :*

Einstein Observatory Einstein Observatory (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three HEAO Program, High Energy Astrophysical Observatories. Named HEAO B before launch, the observatory's name was changed to ho ...

(HEAO 2) launched November 1978, – first fully imaging

X-ray telescope An X-ray telescope (XRT) is a telescope that is designed to observe remote objects in the X-ray spectrum. X-rays are absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets ...

High Energy Astronomy Observatory 3 The last of NASA's three High Energy Astronomy Observatories, HEAO 3 was launched 20 September 1979 on an Atlas-Centaur launch vehicle, into a nearly circular, 43.6 degree inclination low Earth orbit with an initial perigeum of 486.4 km. T ...

(HEAO 3), launched September 1979, *

Imager for Magnetopause-to-Aurora Global Exploration IMAGE (Imager for Magnetopause-to-Aurora Global Exploration, Explorer 78 or MIDEX-1) was a NASA Medium Explorer mission that studied the global response of the Earth's magnetosphere to changes in the solar wind. It was believed lost but as of ...

(IMAGE), launched March 2000, *

Infrared Astronomical Satellite The Infrared Astronomical Satellite ( Dutch: ''Infrarood Astronomische Satelliet'') (IRAS) was the first space telescope to perform a survey of the entire night sky at infrared wavelengths. Launched on 25 January 1983, its mission lasted ten mo ...

(IRAS), launched January 1983, *

Jason-1 Jason-1 was a satellite altimeter oceanography mission. It sought to monitor global ocean circulation, study the ties between the ocean and the atmosphere, improve global climate forecasts and predictions, and monitor events such as El Niño ...

, launched December 2001, *

OSTM/Jason-2 OSTM/Jason-2, or Ocean Surface Topography Mission/Jason-2 satellite, was an international Earth observation satellite altimeter joint mission for sea surface height measurements between NASA and CNES. It was the third satellite in a series sta ...

, launched June 2008, *

Jason-3 Jason-3 is a satellite altimeter created by a partnership of the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) and National Aeronautic and Space Administration (NASA), and is an international cooperative mi ...

, launched January 2016, *

Neil Gehrels Swift Observatory Neil Gehrels Swift Observatory, previously called the Swift Gamma-Ray Burst Explorer, is a NASA three-telescope space observatory for studying gamma-ray bursts (GRBs) and monitoring the afterglow in X-ray, and UV/visible light at the location o ...

(SWIFT), launched November 2004, *

Landsat program The Landsat program is the longest-running enterprise for acquisition of satellite imagery of Earth. It is a joint National Aeronautics and Space Administration, NASA / United States Geological Survey, USGS program. On 23 July 1972, the Landsa ...

Landsat 1 Landsat 1 (LS-1), formerly named Earth Resources Technology Satellite ERTS-A or ERTS-1, was the first satellite of the United States' Landsat program. It was a modified version of the Nimbus 4 Meteorology, meteorological satellite and was laun ...

, launched July 1972, :* Landsat 2, launched January 1975, :*

Landsat 3 Landsat 3 is the third satellite of the Landsat program. It was launched on March 5, 1978, with the primary goal of providing a global archive of satellite imagery. Unlike later Landsat satellites, Landsat 3 was managed solely by NASA. Landsat 3 ...

, launched March 1978, :*

Landsat 4 Landsat 4 is the fourth satellite of the Landsat program. It was launched on July 16, 1982, with the primary goal of providing a global archive of satellite imagery. Although the Landsat Program is managed by NASA, data from Landsat 4 was coll ...

, launched July 1982, :*

Landsat 5 Landsat 5 was a low Earth orbit satellite launched on March 1, 1984, to collect imagery of the surface of Earth. A continuation of the Landsat Program, Landsat 5 was jointly managed by the U.S. Geological Survey (USGS) and the National Aerona ...

, launched March 1984, :*

Landsat 6 Landsat 6, equipped with upgraded versions of the instruments on Landsat 5, was designed to carry forward the Landsat program. It was launched on October 5, 1993, with a Titan II launch vehicle, but failed to reach orbit. Landsat 6 omitted the Mu ...

, launched October 1993, :*

Landsat 7 Landsat 7 is the seventh satellite of the Landsat program. Launched on 15 April 1999, Landsat 7's primary goal is to refresh the global archive of satellite photos, providing up-to-date and cloud-free images. The Landsat program is managed and ...

, launched April 1999, :*

Landsat 8 Landsat 8 is an American Earth observation satellite launched on 11 February 2013. It is the eighth satellite in the Landsat program and the seventh to reach orbit successfully. Originally called the Landsat Data Continuity Mission (LDCM), it i ...

, launched February 2013, :*

Landsat 9 Landsat 9 is an Earth observation satellite launched on 27 September 2021 from Vandenberg Space Launch Complex 3, Space Launch Complex-3E at Vandenberg Space Force Base on an Atlas V , Atlas V 401 launch vehicle. NASA is in charge of building, ...

, launched September 2021, *

Living With a Star Living With a Star (LWS) is a NASA scientific program to study those aspects of the connected Sun-Earth system that directly affect life and society. LWS is a crosscutting initiative with goals and objectives relevant to NASA's Exploration Initiat ...

Van Allen Probes The Van Allen Probes, formerly known as the Radiation Belt Storm Probes (RBSP), were two robotic spacecraft that were used to study the Van Allen radiation belts that surround Earth. NASA conducted the Van Allen Probes mission as part of the Liv ...

, launched August 2012, – Twin probes studying the

Van Allen radiation belt The Van Allen radiation belt is a zone of energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetosphere. Earth has two such belts, and sometimes others ma ...

Earth Observing System The Earth Observing System (EOS) is a program of NASA comprising a series of artificial satellite missions and scientific instruments in Earth orbit designed for long-term global observations of the land surface, biosphere, earth's atmosphere, at ...

Terra Terra may often refer to: * Terra (mythology), primeval Roman goddess * An alternate name for planet Earth, as well as the Latin name for the planet Terra may also refer to: Geography Astronomy * Terra (satellite), a multi-national NASA scient ...

, launched December 1999, :*

Aqua Aqua is the Latin word for water. As such, it is often used in many words which relate to water, such as aquatic life. In English, it may also refer to: Arts * Aqua (color), a greenish-blue color Business * Aqua (Chicago), an 82-story resid ...

, launched May 2002, :*

Aura Aura most commonly refers to: * Aura (paranormal), a purported field of luminous multi-colored radiation around a person or object * Aura (symptom), a symptom experienced before a migraine or seizure * Halo (religious iconography), glory, or aure ...

, launched July 2004, *

New Millennium Program New Millennium Program (NMP) was a NASA project with focus on engineering validation of new technologies for space applications. Funding for the program was eliminated from the FY2009 budget by the 110th United States Congress, effectively leading ...

(NMP) :*

Earth Observing-1 Earth Observing-1 (EO-1) was a NASA Earth observation satellite created to develop and validate a number of instrument and spacecraft bus breakthrough technologies. It was intended to enable the development of future Earth imaging observatories t ...

(EO-1), launched November 2000, :*

Space Technology 5 Space Technology 5 (ST5) of the NASA New Millennium program was a test of ten new technologies aboard a group of Microsatellite (spaceflight), microsatellites. Developed by NASA Goddard Space Flight Center, the three individual small spacecraft w ...

(ST5), launched March 2006, :*

Space Technology 6 Space Technology 6 (ST-6) is part of the NASA New Millennium Program. ST-6 is a subsystem technology demonstration that consisted of 2 separate projects, the Autonomous Sciencecraft Experiment on board the Earth Observing 1 satellite and the Inert ...

(ST6) *

NanoSail-D NanoSail-D was a small satellite which was to have been used by NASA's Ames Research Center to study the deployment of a solar sail in space. It was a three-unit CubeSat measuring , with a mass of . The satellite was lost shortly after launch ...

, launched August 2008, *

NanoSail-D2 NanoSail-D2 was a small satellite built by NASA's Marshall Space Flight Center and Ames Research Center to study the deployment of a solar sail in space. It was a three-unit CubeSat, measuring with a mass of . Its solar sail had an area of , a ...

, launched November 2010, *

Orbiting Carbon Observatory The Orbiting Carbon Observatory (OCO) was a failed NASA satellite mission intended to provide global space-based observations of atmospheric carbon dioxide (). The original spacecraft was lost in a launch failure on 24 February 2009, when the ...

(OCO), launched February 2009, *

(OCO-2), launched July 2014, * Origins program :*

Far Ultraviolet Spectroscopic Explorer Far Ultraviolet Spectroscopic Explorer (FUSE, Explorer 77, and MIDEX-0) represented the next generation, high-orbit, ultraviolet space observatory covering the wavelength range of 90.5–119.5 nanometre (nm) of the NASA operated by the Johns Ho ...

(FUSE), launched June 1999, :*

Kepler Johannes Kepler (27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music. He is a key figure in the 17th-century Scientific Revolution, best known for his laws of p ...

, launched March 2009, – searching for Earth-sized

exoplanets An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first detec ...

in the

habitable zone In astronomy and astrobiology, the habitable zone (HZ), or more precisely the circumstellar habitable zone (CHZ), is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressu ...

James Webb Space Telescope The James Webb Space Telescope (JWST) is a space telescope designed to conduct infrared astronomy. As the largest telescope in space, it is equipped with high-resolution and high-sensitivity instruments, allowing it to view objects too old, Lis ...

, launched December 2021, *

Time History of Events and Macroscale Interactions during Substorms In Greek mythology and religion, Themis (; ) is the goddess and personification of justice, divine order, law, and custom. She is one of the twelve Titan children of Gaia and Uranus, and the second wife of Zeus. She is associated with oracles a ...

(THEMIS), launched February 2007, * Small Explorer program (SMEX) :*

Aeronomy of Ice in the Mesosphere The Aeronomy of Ice in the Mesosphere (AIM or Explorer 90) was a NASA satellite launched in 2007 to conduct a planned 26-month study of noctilucent clouds (NLCs). It is the ninetieth Explorer program mission and is part of the NASA-funded S ...

(AIM), launched April 2007, :*

Fast Auroral Snapshot Explorer The Fast Auroral SnapshoT Explorer (FAST or Explorer 70) was a NASA plasma physics satellite, and was the second spacecraft in the Small Explorer program (SMEX). It was launched on 21 August 1996, from Vandenberg Space Force Base, Vandenberg Ai ...

(FAST), launched August 1996, :*

Galaxy Evolution Explorer Galaxy Evolution Explorer (GALEX or Explorer 83 or SMEX-7) was a NASA orbiting space telescope designed to observe the universe in ultraviolet wavelengths to measure the history of star formation in the universe. In addition to paving the way ...

(GALEX), launched April 2003, :*

Interstellar Boundary Explorer Interstellar Boundary Explorer (IBEX or Explorer 91 or SMEX-10) is a NASA satellite in Earth orbit that uses energetic neutral atoms (ENAs) to image the interaction region between the Solar System and Outer space, interstellar space. The missi ...

(IBEX), launched October 2008, :*

Nuclear Spectroscopic Telescope Array NuSTAR (Nuclear Spectroscopic Telescope Array, also named Explorer 93 and SMEX-11) is a NASA space-based X-ray telescope that uses a conical approximation to a Wolter telescope to focus high energy X-rays from astrophysical sources, especial ...

(NuSTAR), launched June 2012, –

X-ray An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ran ...

telescope orbiting Earth :*

Reuven Ramaty High Energy Solar Spectroscopic Imager Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI, originally High Energy Solar Spectroscopic Imager or HESSI or Explorer 81) was a NASA solar flare observatory. It was the sixth mission in the Small Explorer program (SMEX), selecte ...

(RHESSI), launched February 2002, – Sun observing, Earth satellite :* Solar Anomalous and Magnetospheric Particle Explorer (SAMPEX), launched July 1992, :*

Submillimeter Wave Astronomy Satellite Submillimeter Wave Astronomy Satellite (SWAS, also Explorer 74 and SMEX-3) is a NASA submillimetre astronomy satellite, and is the fourth spacecraft in the Small Explorer program (SMEX). It was launched on 6 December 1998, at 00:57:54 UTC, fro ...

(SWAS), launched December 1998, :* Transition Region and Coronal Explorer (TRACE), launched August 1998, – Sun observing, Earth satellite :*

Wide Field Infrared Explorer Wide-field Infrared Explorer (WIRE, also Explorer 75 and SMEX-5) was a NASA satellite launched on 5 March 1999, on the Pegasus XL launch vehicle into polar orbit between above the surface of Earth. WIRE was intended to be a four-month infrare ...

(WIRE), launched March 1999, * Solar Terrestrial Probes program :* Hinode (Solar-B) :* Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) * Two Wide-angle Imaging Neutral-atom Spectrometers (TWINS) * Uhuru *

Wilkinson Microwave Anisotropy Probe The Wilkinson Microwave Anisotropy Probe (WMAP), originally known as the Microwave Anisotropy Probe (MAP and Explorer 80), was a NASA spacecraft operating from 2001 to 2010 which measured temperature differences across the sky in the cosmic mic ...

(WMAP) *

Imaging X-ray Polarimetry Explorer Imaging X-ray Polarimetry Explorer, commonly known as IXPE or SMEX-14, is a space observatory with three identical telescopes designed to measure the polarization of cosmic X-rays of black holes, neutron stars, and pulsars. The observatory, ...

(IXPE) *

BioSentinel BioSentinel is a lowcost CubeSat spacecraft on a astrobiology mission that will use budding yeast to detect, measure, and compare the impact of deep space radiation on DNA repair over long time beyond low Earth orbit. Selected in 2013 for a ...

Nancy Grace Roman Space Telescope The Nancy Grace Roman Space Telescope (shortened as the Roman Space Telescope, Roman, or RST) is a NASA infrared space telescope in development and scheduled to launch to a Sun–Earth L2 orbit by May 2027. It is named after former NASA Chie ...

, launching May 2027, *

INCUS The ''incus'' (: incudes) or anvil in the ear is one of three small bones (ossicles) in the middle ear. The incus receives vibrations from the malleus, to which it is connected laterally, and transmits these to the stapes medially. The incus i ...

, launching 2027,

Sun

Pioneer program The Pioneer programs were two series of United States lunar and planetary space probes. The first program, which ran from 1958 to 1960, unsuccessfully attempted to send spacecraft to orbit the Moon, successfully sent one spacecraft to fly by the ...

:* ''

Pioneer 6, 7, 8, and 9 ''Pioneer 6'', ''7'', ''8'', and ''9'' were space probes in the Pioneer program, launched between 1965 and 1969. They were a series of solar-orbiting, spin-stabilized, solar cell- and battery-powered satellites designed to obtain measurements o ...

'', launched between December 1965 and November 1968, –

Solar wind The solar wind is a stream of charged particles released from the Sun's outermost atmospheric layer, the Stellar corona, corona. This Plasma (physics), plasma mostly consists of electrons, protons and alpha particles with kinetic energy betwee ...

solar magnetic field The Sun is the star at the centre of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light an ...

and

cosmic rays Cosmic rays or astroparticles are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light. They originate from the Sun, from outside of the Solar ...

* Helios 1 and 2, launched December 1974 and January 1976, * ''Ulysses'' spacecraft, launched October 1990, –

ESA The European Space Agency (ESA) is a 23-member international organization devoted to space exploration. With its headquarters in Paris and a staff of around 2,547 people globally as of 2023, ESA was founded in 1975 in the context of European ...

partnership * ''

Genesis Genesis may refer to: Religion * Book of Genesis, the first book of the biblical scriptures of both Judaism and Christianity, describing the creation of the Earth and of humankind * Genesis creation narrative, the first several chapters of the Bo ...

'', launched August 2001, – returned sample of solar wind *

Solar and Heliospheric Observatory The Solar and Heliospheric Observatory (SOHO) is a European Space Agency (ESA) spacecraft built by a European industrial consortium led by Matra Marconi Space (now Airbus Defence and Space) that was launched on a Lockheed Martin Atlas IIAS la ...

(SOHO), launched December 1995, –

partnership *

Advanced Composition Explorer Advanced Composition Explorer (ACE or Explorer 71) is a NASA Explorer program satellite and space exploration mission to study matter comprising energetic particles from the solar wind, the interplanetary medium, and other sources. Real-ti ...

(ACE), launched August 1997, *

Solar Maximum Mission The Solar Maximum Mission satellite (or SolarMax) was designed to investigate Solar phenomena, particularly solar flares. It was launched on February 14, 1980. The SMM was the first satellite based on the Multimission Modular Spacecraft bus man ...

(SolarMax), launched February 1980, – suffered partial failure after launch; repaired in April 1984 during a Space Shuttle mission * Solar Terrestrial Probes program :*

TIMED timed (time daemon) is an operating system program that maintains the system time in synchronization with time servers using the Time Synchronization Protocol (TSP) developed by Riccardo Gusella and Stefano Zatti. Gusella and Zatti had done e ...

, launched December 2001, :* Hinode, launched September 2006, :*

STEREO Stereophonic sound, commonly shortened to stereo, is a method of sound reproduction that recreates a multi-directional, 3-dimensional audible perspective. This is usually achieved by using two independent audio channels through a configurat ...

, launched October 2006, :* MMS, launched March 2015, :*

IMAP In computing, the Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection. IMAP is defined by . IMAP was designed with the goal of per ...

, launching 2025, *

Parker Solar Probe The Parker Solar Probe (PSP; previously Solar Probe, Solar Probe Plus or Solar Probe+) is a NASA space probe launched in 2018 to make observations of the Stellar corona, Sun's outer corona. It used repeated Gravity assist, gravity assists from ...

, launched August 2018, – the first mission into the Sun's

corona Corona (from the Latin for 'crown') most commonly refers to: * Stellar corona, the outer atmosphere of the Sun or another star * Corona (beer), a Mexican beer * Corona, informal term for the coronavirus or disease responsible for the COVID-19 ...

Solar Dynamics Observatory The Solar Dynamics Observatory (SDO) is a NASA mission which has been observing the Sun since 2010. Launched on 11 February 2010, the observatory is part of the Living With a Star (LWS) program. The goal of the LWS program is to develop the ...

(SDO), launched February 2010, :*

Balloon Array for RBSP Relativistic Electron Losses A barrel or cask is a hollow cylindrical container with a bulging center, longer than it is wide. They are traditionally made of wooden staves and bound by wooden or metal hoops. The word vat is often used for large containers for liquids, ...

(BARREL) – two campaigns of 20 balloons each, studying the Van Allen radiation belts, 2012 to 2014 This mission is a complement to the Van Allen Probes (RBSP). *

CubeSat for Solar Particles CubeSat for Solar Particles (CuSP) was a low-cost 6U CubeSat to orbit the Sun to study the dynamic particles and magnetic fields. The principal investigator for CuSP is Mihir Desai, at the Southwest Research Institute (SwRI) in San Antonio, T ...

(CuSP), launched November 2022

Moon

:* ''

Pioneer 0 Pioneer 0 (also known as Able 1) was a failed United States space probe that was designed to go into orbit around the Moon, carrying a television camera, a micrometeorite detector and a magnetometer. It was part of the first International Geophys ...

'', launched August 1958, :* ''

Pioneer 1 Pioneer 1 (also known as Able 2) was an American space probe, the first under the auspices of NASA, which was launched by a Thor-Able rocket on 11 October 1958. It was intended to orbit the Moon and make scientific measurements, but due to a g ...

'', launched October 1958, :* ''

Pioneer 2 Pioneer 2 (also known as Able 3) was the last of the three project Able space probes designed to probe lunar and cislunar space. The launch took place at 07:30:21 GMT on 8 November 1958. After Pioneer 1 had failed due to guidance system deficie ...

'', launched November 1958, :* ''

Pioneer 3 Pioneer 3 was a spin-stabilized spacecraft launched at 05:45:12 GMT on 6 December 1958 by the U.S. Army Ballistic Missile Agency in conjunction with NASA, using a Juno II rocket. This spacecraft was intended as a lunar probe, but failed to go pa ...

'', launched December 1958, :* ''

Pioneer 4 Pioneer 4 was an American spin-stabilized uncrewed spacecraft launched as part of the Pioneer program on a lunar flyby trajectory and into a heliocentric orbit making it the first probe of the United States to escape from the Earth's gravity. ...

'', launched March 1959, :* ''

Pioneer P-1 Pioneer P-1 was a failed mission in the Pioneer program. The spacecraft A spacecraft is a vehicle that is designed spaceflight, to fly and operate in outer space. Spacecraft are used for a variety of purposes, including Telecommunications ...

'', launched September 1959, :* ''

Pioneer P-3 Pioneer P-3 (also known as Atlas-Able 4 or Pioneer X) was intended to be a lunar orbiter probe, but the mission failed shortly after launch. The objectives were to place a highly instrumented probe in lunar orbit, to investigate the environme ...

'', launched November 1959, :* ''

Pioneer P-30 Pioneer P-30 (also known as Able 5A, Atlas-Able 5A, or Pioneer Y) was intended to be a lunar orbiter probe, but the mission failed shortly after launch on September 25, 1960. The objectives were to place a highly instrumented probe in lunar orb ...

'', launched September 1960, :* ''

Pioneer P-31 Pioneer P-31 (also known as Atlas-Able 5B or Pioneer Z) was intended to be a lunar orbiter probe, but the mission failed shortly after launch. The objectives were to place a highly instrumented probe in lunar orbit, to investigate the environme ...

'', launched December 1960, *

Ranger program The Ranger program was a series of uncrewed space missions by the United States in the 1960s whose objective was to obtain the first close-up images of the surface of the Moon. The Ranger spacecraft were designed to take images of the lunar su ...

:* ''

Ranger 1 Ranger 1 was a prototype spacecraft launched as part of the Ranger program of uncrewed space missions. Its primary mission was to test the performance of those functions and parts necessary for carrying out subsequent lunar and planetary missio ...

'', launched August 1961, :* ''

Ranger 2 Ranger 2 was a flight test of the Ranger spacecraft system of the NASA Ranger program designed for future lunar and interplanetary missions. Ranger 2 was designed to test various systems for future exploration and to conduct scientific observatio ...

'', launched November 1961, :* ''

Ranger 3 Ranger 3 was a space exploration mission conducted by NASA to study the Moon. The Ranger 3 robotic spacecraft was launched January 26, 1962 as part of the Ranger program. Due to a series of malfunctions, the spacecraft missed the Moon by and ...

'', launched January 1962, :* ''

Ranger 4 Ranger 4 was a spacecraft of the Ranger program, launched in 1962. It was designed to transmit pictures of the lunar surface to Earth stations during a period of 10 minutes of flight prior to crashing upon the Moon, to rough-land a seismometer ca ...

'', launched April 1962, :* ''

Ranger 5 Ranger 5 was a spacecraft of the Ranger program designed to transmit pictures of the lunar surface to Earth stations during a period of 10 minutes of flight prior to impacting on the Moon, to rough-land a seismometer capsule on the Moon, to colle ...

'', launched October 1962, :* ''

Ranger 6 Ranger 6 was a lunar probe in the NASA Ranger program, a series of robotic spacecraft of the early and mid-1960s to obtain close-up images of the Moon's surface. It was launched on January 30, 1964 and was designed to transmit high-resolution pho ...

'', launched January 1964, :* ''

Ranger 7 Ranger 7 was the first NASA space probe to successfully transmit close-up images of the lunar surface back to Earth. It was also the first completely successful flight of the Ranger program. Launched on July 28, 1964, Ranger 7 was designed to a ...

'', launched July 1964, :* ''

Ranger 8 Ranger 8 was a lunar probe in the Ranger program, a robotic spacecraft series launched by NASA in the early-to-mid-1960s to obtain the first close-up images of the Moon's surface. These pictures helped select landing sites for Apollo missions and ...

'', launched February 1965, :* ''

Ranger 9 Ranger 9 was a Lunar probe, launched in 1965 by NASA. It was designed to achieve a lunar impact trajectory and to transmit high-resolution photographs of the lunar surface during the final minutes of flight up to impact. The spacecraft carried s ...

'', launched March 1965, *

Surveyor program The Surveyor program was a NASA program that, from June 1966 through January 1968, sent seven robotic spacecraft to the surface of the Moon. Its primary goal was to demonstrate the feasibility of Soft landing (rocketry), soft landings on the Moo ...

:* ''

Surveyor 1 Surveyor 1 was the first lunar soft-lander in the uncrewed Surveyor program of the National Aeronautics and Space Administration (NASA, United States). This lunar soft-lander gathered data about the lunar surface that would be needed for the c ...

'', launched May 1966, :* ''

Surveyor 2 Surveyor 2 was to be the second lunar lander in the uncrewed American Surveyor program to explore the Moon. After launch on September 20, 1966, a mid-course correction failure resulted in the spacecraft losing control. Contact was lost with the sp ...

'', launched September 1966, :* ''

Surveyor 3 Surveyor 3 is the third lander of the American uncrewed Surveyor program sent to explore the surface of the Moon in 1967 and the second to successfully land. It was the first mission to carry a surface-soil sampling-scoop. Surveyor 3 was vis ...

'', launched April 1967, :* '' Surveyor 4'', launched July 1967, :* '' Surveyor 5'', launched September 1967, :* '' Surveyor 6'', launched November 1967, :* ''

Surveyor 7 Surveyor 7 was sent to the Moon in 1968 on a scientific and photographic mission as the seventh and last lunar lander of the American uncrewed Surveyor program. With two previous unsuccessful missions in the Surveyor series, and with Surveyor 7's ...

'', launched January 1968, *

Lunar Orbiter program The Lunar Orbiter program was a series of five uncrewed lunar orbiter missions launched by the United States in 1966 and 1967. Intended to help select Apollo landing sites by mapping the Moon's surface, they provided the first photographs from ...

:* ''

Lunar Orbiter 1 The 1966 Lunar Orbiter 1 robotic spacecraft mission, part of NASA's Lunar Orbiter program, was the first American spacecraft to orbit the Moon. It was designed primarily to photograph smooth areas of the lunar surface for selection and verific ...

'', launched August 1966, :* ''

Lunar Orbiter 2 The 1966 Lunar Orbiter 2 robotic spacecraft mission, part of the Lunar Orbiter program, Lunar Orbiter Program, was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the S ...

'', launched November 1966, :* ''

Lunar Orbiter 3 The Lunar Orbiter 3 was a spacecraft launched by NASA in 1967 as part of the Lunar Orbiter program, Lunar Orbiter Program. It was designed primarily to photograph areas of the Moon, lunar surface for confirmation of safe landing sites for the S ...

'', launched February 1967, :* ''

Lunar Orbiter 4 Lunar Orbiter 4 was a robotic U.S. spacecraft, part of the Lunar Orbiter program, Lunar Orbiter Program, designed to orbit the Moon, after the three previous orbiters had completed the required needs for Project Apollo, Apollo mapping and site s ...

'', launched May 1967, :* ''

Lunar Orbiter 5 Lunar Orbiter 5, the last of the "Lunar Orbiter series", was designed to take additional Project Apollo, Apollo and Surveyor program, Surveyor landing site photography and to take broad survey images of unphotographed parts of the Moon's far sid ...

'', launched August 1967, * ''

Clementine A clementine (''Citrus × clementina'') is a tangor, a citrus fruit hybrid between a willowleaf mandarin orange ( ''C.'' × ''deliciosa'') and a sweet orange (''C. × sinensis''), named in honor of Clément Rodier, a French missionary who f ...

'', launched January 1994, *

Discovery Program The Discovery Program is a series of Solar System exploration missions funded by the U.S. National Aeronautics and Space Administration (NASA) through its Planetary Missions Program Office. The cost of each mission is capped at a lower level t ...

:* ''Discovery 3'' – ''

Lunar Prospector ''Lunar Prospector'' was a spacecraft that orbited the Moon for 19 months in 1998-99. From a low polar orbit, it mapped surface composition including lunar hydrogen deposits, measured magnetic and gravity fields, and studied lunar outgassing e ...

'', launched January 1998, :* ''Discovery 11'' –

GRAIL The Holy Grail (, , , ) is a treasure that serves as an important motif in Arthurian literature. Various traditions describe the Holy Grail as a cup, dish, or stone with miraculous healing powers, sometimes providing eternal youth or sustenanc ...

, launched September 2011, *

Moon Mineralogy Mapper The Moon Mineralogy Mapper (M3) is one of two instruments of NASA that was carried by India's first mission to the Moon, Chandrayaan-1, launched October 22, 2008. It is an imaging spectrometer, and the team is led by Principal investigator Carle ...

(M³) – instrument for ISRO's '' Chandraayan-1'', launched October 2008, *

Lunar Precursor Robotic Program The Lunar Precursor Robotic Program (LPRP) is a NASA program that uses robotic spacecraft to prepare for future human spaceflight, crewed missions to the Moon. The program gathers data such as lunar radiation, surface imaging, areas of scientific i ...

(LPRP) :*

LCROSS The Lunar Crater Observation and Sensing Satellite (LCROSS) was a robotic spacecraft operated by NASA. The mission was conceived as a low-cost means of determining the nature of hydrogen detected at the polar regions of the Moon. Launched immedi ...

, launched June 2009, :* ''

Lunar Reconnaissance Orbiter The Lunar Reconnaissance Orbiter (LRO) is a NASA robotic spacecraft currently orbiting the Moon in an eccentric Polar orbit, polar mapping orbit. Data collected by LRO have been described as essential for planning NASA's future human and robotic ...

'' (LRO), launched June 2009, :*

LADEE The Lunar Atmosphere and Dust Environment Explorer (LADEE; ) was a NASA lunar exploration and technology demonstration mission. It was launched on a Minotaur V rocket from the Mid-Atlantic Regional Spaceport on September 7, 2013. During its s ...

, launched September 2013, * ''

Korea Pathfinder Lunar Orbiter The Korea Pathfinder Lunar Orbiter (KPLO), officially Danuri, is South Korea's first lunar mission. The orbiter, its science payload and ground control infrastructure are technology demonstrators. The orbiter will also be tasked with surveying ...

s ShadowCam instrument, launched August 2022, *

CAPSTONE __NOTOC__ Capstone may refer to: Architecture * Keystone (architecture), also known as a capstone Brands and enterprises * Capstone Investment Advisors, a US investment management firm * Capstone Partners, an investment banking firm * Capstone P ...

, launched November 2022, * ''

LunaH-Map Lunar Polar Hydrogen Mapper, or LunaH-Map, was one of the 10 CubeSats launched with Artemis 1 on 16 November 2022. Along with Lunar IceCube and LunIR, LunaH-Map will help investigate the possible presence of water-ice on the Moon. Arizona S ...

'', launched November 2022, * ''

Lunar IceCube Lunar IceCube is a NASA nanosatellite orbiter mission that was intended to prospect, locate, and estimate amount and composition of water ice deposits on the Moon for future exploitation. It was launched as a secondary payload mission on Arte ...

'', launched November 2022, * ''

Lunar Flashlight Lunar Flashlight was a low-cost CubeSat lunar orbiter mission to explore, locate, and estimate size and composition of water ice deposits on the Moon for future exploitation by robots or humans. The spacecraft, of the 6U CubeSat format, ...

'', launched December 2022, *

Commercial Lunar Payload Services Commercial Lunar Payload Services (CLPS) is a NASA program to hire companies to send small robotic landers and rovers to the Moon. Most landing sites are near the lunar south pole where they will scout for lunar resources, test in situ resource ...

:* ''

Peregrine Mission One ''Peregrine'' Lunar Lander flight 01, commonly referred to as Peregrine Mission One, was a failed American lunar lander mission. The lander, dubbed ''Peregrine'', was built by Astrobotic Technology and carried payloads for the NASA Commercial Lu ...

'', launched January 2024, :* ''

IM-1 IM-1 was a robotic Moon landing mission conducted by Intuitive Machines (IM) in February 2024 using a Intuitive Machines Nova-C, Nova-C lunar lander. After contact with the lunar surface on February 22 the lander tipped to an unplanned 30 de ...

'', launched February 2024, – first commercial lunar landing. First American Moon landing since

Apollo 17 Apollo 17 (December 7–19, 1972) was the eleventh and final mission of NASA's Apollo program, the sixth and most recent time humans have set foot on the Moon. Commander Gene Cernan and Lunar Module Pilot Harrison Schmitt walked on the Moon, ...

in December 1972. :* ''

Blue Ghost Mission 1 Blue Ghost Mission 1 was a robotic Moon landing mission by Firefly Aerospace that launched on January 15, 2025, and successfully Soft landing, soft-landed on the lunar surface on March 2, 2025, at 08:34Coordinated Universal Time, UTC. With thi ...

'', launched January 2025, :* ''

IM-2 IM-2 was a lunar mission run by Intuitive Machines as part of NASA's Commercial Lunar Payload Services (CLPS) program. It was launched on 27 February 2025, at 00:16:30 UTC. The Nova-C lunar lander, named ''Athena'', reached the surface of t ...

'', launched February 2025,

Mercury

Mariner program The Mariner program was conducted by the American space agency NASA to explore other planets. Between 1962 and late 1973, NASA's Jet Propulsion Laboratory (JPL) designed and built 10 robotic interplanetary probes named Mariner to explore the in ...

:* ''

Mariner 10 ''Mariner 10'' was an American Robotic spacecraft, robotic space probe launched by NASA on 3 November 1973, to fly by the planets Mercury (planet), Mercury and Venus. It was the first spacecraft to perform flybys of multiple planets. ''Marin ...

'', launched November 1973, – flyby of

Venus Venus is the second planet from the Sun. It is often called Earth's "twin" or "sister" planet for having almost the same size and mass, and the closest orbit to Earth's. While both are rocky planets, Venus has an atmosphere much thicker ...

; multiple flybys of Mercury; first spacecraft to Mercury *

Discovery program The Discovery Program is a series of Solar System exploration missions funded by the U.S. National Aeronautics and Space Administration (NASA) through its Planetary Missions Program Office. The cost of each mission is capped at a lower level t ...

:* ''Discovery 7'' – ''

MESSENGER Messenger, Messengers, The Messenger or The Messengers may refer to: People * Courier, a person or company that delivers messages, packages, or mail * Messenger (surname) * Bicycle messenger, a bicyclist who transports packages through cities * M ...

'', launched August 2004, – first to orbit Mercury

Venus

:* ''

Mariner 1 Mariner 1, built to conduct the first American planetary flyby of Venus, was the first spacecraft of NASA's interplanetary Mariner program. Developed by Jet Propulsion Laboratory, and originally planned to be a purpose-built probe launched summ ...

'', launched July 1962, – intended to be first American flyby of

:* ''

Mariner 2 Mariner 2 (Mariner-Venus 1962), an American space probe to Venus, was the first robotic space probe to report successfully from a planetary encounter. The first successful spacecraft in the NASA Mariner program, it was a simplified version of t ...

'', launched August 1962, – first flyby of

by an operational spacecraft :* ''

Mariner 5 Mariner 5 (Mariner V or Mariner Venus 1967) was a spacecraft of the Mariner program that carried a complement of experiments to probe Venus' atmosphere by radio occultation, measure the hydrogen Lyman-alpha (hard ultraviolet) spectrum, and sam ...

'', launched June 1967, – flyby of

:* ''

'', launched November 1973, – flyby of

; multiple flybys of Mercury; first spacecraft to Mercury *

:* ''

Pioneer 5 ''Pioneer 5'' (also known as Pioneer P-2, and Able 4, and nicknamed the "Paddle-Wheel Satellite") was a spin-stabilized space probe in the NASA Pioneer program used to investigate interplanetary space between the orbits of Earth and Venus. It ...

'', launched March 1960, – interplanetary space between Earth and

Pioneer Venus project The Pioneer Venus project was part of the Pioneer program consisting of two spacecraft, the Pioneer Venus Orbiter and the Pioneer Venus Multiprobe, launched to Venus in 1978. The program was managed by NASA's Ames Research Center. The Pionee ...

::* ''

Pioneer Venus Orbiter The ''Pioneer Venus Orbiter'', also known as ''Pioneer Venus 1'' or ''Pioneer 12'', was a mission to Venus conducted by NASA as part of the Pioneer Venus project. Launched in May 1978 atop an Atlas-Centaur rocket, the spacecraft was inserted into ...

'', launched May 1978, –

orbiter ::* ''

Pioneer Venus Multiprobe The Pioneer Venus Multiprobe, also known as Pioneer Venus 2 or Pioneer 13, was a spacecraft launched in 1978 to explore Venus as part of NASA's Pioneer program. This part of the mission included a Satellite bus, spacecraft bus which was launched ...

'', launched August 1978, –

atmospheric probes * ''

Magellan Ferdinand Magellan ( – 27 April 1521) was a Portuguese people, Portuguese explorer best known for having planned and led the Magellan expedition, 1519–22 Spanish expedition to the East Indies. During this expedition, he also discovered t ...

'', launched May 1989, – radar mapping of

:* ''Discovery 15'' – ''

VERITAS In Roman mythology, Veritas (), meaning Truth, is the Goddess of Truth, a daughter of Saturn (mythology), Saturn (called Cronus by the Greeks, the Titan (mythology), Titan of Time, perhaps first by Plutarch) and the mother of Virtus (deity), Vi ...

'', launching 2028, :* ''Discovery 16'' – ''

DAVINCI Leonardo di ser Piero da Vinci (15 April 1452 - 2 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested o ...

'', launching 2029,

Mars

:* ''

Mariner 4 Mariner 4 (Mariner C-3, together with Mariner 3 known as Mariner-Mars 1964) was the Mariner program, fourth in a series of spacecraft intended for planetary exploration in a flyby mode. It was designed to conduct closeup scientific observations ...

'', launched November 1964, :* ''

Mariner 6 and 7 Mariner 6 and Mariner 7 (Mariner Mars 69A and Mariner Mars 69B) were two uncrewed NASA robotic spacecraft that completed the first dual mission to Mars in 1969 as part of NASA's wider Mariner program. Mariner 6 was launched from Launch Complex ...

'', launched February 1969, :* ''

Mariner 8 Mariner-H (Mariner Mars '71), also commonly known as Mariner 8, was (along with Mariner 9) part of the Mariner Mars '71 project. It was intended to go into Mars orbit and return images and data, but a launch vehicle failure prevented Mariner 8 ...

'', launched May 1971, :* ''

Mariner 9 Mariner 9 (Mariner Mars '71 / Mariner-I) was a robotic spacecraft that contributed greatly to the exploration of Mars and was part of the NASA Mariner program. Mariner 9 was launched toward Mars on May 30, 1971, from Spaceport Florida Launch Comp ...

'', launched May 1971, *

Viking program The ''Viking'' program consisted of a pair of identical American space probes, ''Viking 1'' and ''Viking 2'' both launched in 1975, and landed on Mars in 1976. The mission effort began in 1968 and was managed by the NASA Langley Research Cent ...

:* ''

Viking 1 ''Viking 1'' was the first of two spacecraft, along with '' Viking 2'', each consisting of an orbiter and a lander, sent to Mars as part of NASA's Viking program. The lander touched down on Mars on July 20, 1976, the first successful Mars lan ...

'', launched August 1975, :* ''

Viking 2 The ''Viking 2'' mission was part of the American Viking program to Mars, and consisted of an orbiter and a lander essentially identical to that of the '' Viking 1'' mission. ''Viking 2'' was operational on Mars for sols ( days; '). The ''V ...

'', launched September 1975, * ''

Mars Observer The ''Mars Observer'' spacecraft, also known as the ''Mars Geoscience/Climatology Orbiter'', was a Robotic spacecraft, robotic space probe launched by NASA on September 25, 1992, to study the Martian surface, atmosphere, climate and magnetic fie ...

'', launched September 1992, * ''

Mars Global Surveyor ''Mars Global Surveyor'' (MGS) was an American Robotic spacecraft, robotic space probe developed by NASA's Jet Propulsion Laboratory. It launched November 1996 and collected data from 1997 to 2006. MGS was a global mapping mission that examined ...

'', launched November 1996, *

:* ''Discovery 2'' – ''

Mars Pathfinder ''Mars Pathfinder'' was an American robotic spacecraft that landed a base station with a rover (space exploration), roving probe on Mars in 1997. It consisted of a Lander (spacecraft), lander, renamed the Carl Sagan Memorial Station, and a ligh ...

'' / ''Sojourner'' rover, launched July 1997, :* ''Discovery 12'' – ''

InSight Insight is the understanding of a specific causality, cause and effect within a particular context. The term insight can have several related meanings: *a piece of information *the act or result of understanding the inner nature of things or of se ...

'', launched May 2018, * ''

Mars Polar Lander The Mars Polar Lander, also known as the Mars Surveyor '98 Lander, was a 290-kilogram uncrewed spacecraft lander launched by NASA on January 3, 1999, to study the soil and climate of Planum Australe, a region near the south pole on Mars. It fo ...

'', launched January 1999, :* ''

Deep Space 2 Deep Space 2 was a NASA space probe, part of the New Millennium Program. It included two highly advanced miniature space probes that were sent to Mars aboard the Mars Polar Lander in January 1999. The probes were named "Scott" and "Amundsen", in ...

'', launched January 1999, – (sub-surface probes) * ''

2001 Mars Odyssey ''2001 Mars Odyssey'' is a robotic spacecraft orbiting the planet Mars. The project was developed by NASA, and contracted out to Lockheed Martin, with an expected cost for the entire mission of US$297 million. Its mission is to use spectro ...

'', launched April 2001, *

Mars Exploration Rover NASA's Mars Exploration Rover (MER) mission was a robotic space mission involving two Mars rovers, ''Spirit (rover), Spirit'' and ''Opportunity (rover), Opportunity'', exploring the planet Mars. It began in 2003 with the launch of the two rove ...

s :* ''Spirit'' rover, launched June 2003, :* ''Opportunity'' rover, launched June 2003, * ''

Mars Reconnaissance Orbiter The ''Mars Reconnaissance Orbiter'' (''MRO'') is a spacecraft designed to search for the existence of water on Mars and provide support for missions to Mars, as part of NASA's Mars Exploration Program. It was launched from Cape Canaveral on Au ...

'', launched August 2005, –

Mars Mars is the fourth planet from the Sun. It is also known as the "Red Planet", because of its orange-red appearance. Mars is a desert-like rocky planet with a tenuous carbon dioxide () atmosphere. At the average surface level the atmosph ...

orbiter *

Mars Scout program Mars is the fourth planet from the Sun. It is also known as the "Red Planet", because of Mars surface color, its orange-red appearance. Mars is a desert-like rocky planet with a tenuous carbon dioxide () Atmosphere of Mars, atmosphere. At ...

:* '' Phoenix'', launched August 2007, –

lander :*

MAVEN MAVEN is a NASA spacecraft orbiting Mars to study the loss of that planet's atmospheric gases to space, providing insight into the history of the planet's climate and water. The name is an acronym for "Mars Atmosphere and Volatile Evolution" w ...

, launched November 2013, – orbiter studying the

atmosphere of Mars The atmosphere of Mars is the layer of gases surrounding Mars. It is primarily composed of carbon dioxide (95%), molecular nitrogen (2.85%), and argon (2%). It also contains trace levels of water vapor, oxygen, carbon monoxide, hydrogen, and nob ...

* ''

Mars Science Laboratory Mars Science Laboratory (MSL) is a robotic spacecraft, robotic space probe mission to Mars launched by NASA on November 26, 2011, which successfully landed ''Curiosity (rover), Curiosity'', a Mars rover, in Gale (crater), Gale Crater on Augus ...

'' (MSL) / ''Curiosity'' rover, launched November 2011, –

Mars rover A Mars rover is a remote-controlled motor vehicle designed to travel on the surface of Mars. Rovers have several advantages over stationary landers: they examine more territory, they can be directed to interesting features, they can place them ...

exploring

Gale Crater Gale is a crater, and probable dry lake, at in the northwestern part of the Aeolis quadrangle on Mars. It is in diameter and estimated to be about 3.5–3.8 billion years old. The crater was named after Walter Frederick Gale, an amateur a ...

* ''

'', launched May 2018, *

Mars 2020 Mars 2020 is a NASA mission that includes the rover ''Perseverance (rover), Perseverance'', the now-retired small robotic helicopter ''Ingenuity (helicopter), Ingenuity'', and associated delivery systems, as part of the Mars Exploration Progra ...

:* ''Perseverance'' rover, launched July 2020, –

exploring

Jezero Crater Jezero is a Impact crater, crater on Mars in the Syrtis Major quadrangle, about in diameter. Thought to have once been flooded with water, the crater contains a fan-river delta, delta deposit rich in clays. The lake in the crater was present w ...

:* ''Ingenuity'' helicopter, launched July 2020, – first powered flight on

EscaPADE Escapade or Escapades may refer to: Transportation *Beneteau Escapade, a French sailboat design * HMS ''Escapade'', a 1934 Royal Navy destroyer that served in World War II *'' Just Escapade'', an American two-seat kit-built light aircraft Films ...

, launching 2025, *

NASA-ESA Mars Sample Return The NASA-ESA Mars Sample Return is a proposed Large strategic science missions, Flagship-class Mars sample return (MSR) mission to collect Martian rock and soil samples in 43 small, cylindrical, pencil-sized, titanium tubes and sample-return mi ...

, launching 2027 and 2028,

Jupiter

:* ''

Pioneer 10 ''Pioneer 10'' (originally designated Pioneer F) is a NASA space probe launched in 1972 that completed the first mission to the planet Jupiter. ''Pioneer 10'' became the first of five artificial objects to achieve the escape velocity needed ...

'', launched March 1972, – first to the

asteroid belt The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies called asteroids ...

and

Jupiter Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a Jupiter mass, mass more than 2.5 times that of all the other planets in the Solar System combined a ...

:* ''

Pioneer 11 ''Pioneer 11'' (also known as ''Pioneer G'') is a NASA robotic space probe launched on April 5, 1973, to study the asteroid belt, the environment around Jupiter and Saturn, the solar wind, and cosmic rays. It was the first probe to Exploration ...

'', launched April 1973, –

and

, first to

Saturn Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about 9 times that of Earth. It has an eighth the average density of Earth, but is over 95 tim ...

Voyager program The Voyager program is an American scientific program that employs two interstellar probes, ''Voyager 1'' and ''Voyager 2''. They were launched in 1977 to take advantage of a favorable planetary alignment to explore the two gas giants Jupiter ...

:* ''

Voyager 1 ''Voyager 1'' is a space probe launched by NASA on September 5, 1977, as part of the Voyager program to study the outer Solar System and the interstellar medium, interstellar space beyond the Sun's heliosphere. It was launched 16 days afte ...

'', launched September 1977, – flybys of

and

; extended mission to explore

interstellar medium The interstellar medium (ISM) is the matter and radiation that exists in the outer space, space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as cosmic dust, dust and cosmic rays. It f ...

; most distant human-made object :* ''

Voyager 2 ''Voyager 2'' is a space probe launched by NASA on August 20, 1977, as a part of the Voyager program. It was launched on a trajectory towards the gas giants (Jupiter and Saturn) and enabled further encounters with the ice giants (Uranus and ...

'', launched August 1977, – flybys of

Uranus Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a Supercritical fluid, supercritical phase of matter, which astronomy calls "ice" or Volatile ( ...

, and

Neptune Neptune is the eighth and farthest known planet from the Sun. It is the List of Solar System objects by size, fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 t ...

; extended mission to explore

; first spacecraft to

and

* ''

Galileo Galileo di Vincenzo Bonaiuti de' Galilei (15 February 1564 – 8 January 1642), commonly referred to as Galileo Galilei ( , , ) or mononymously as Galileo, was an Italian astronomer, physicist and engineer, sometimes described as a poly ...

'', launched October 1989, –

and its

moons A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body (or sometimes another natural satellite). Natural satellites are colloquially referred to as moons, a deriva ...

New Frontiers program The New Frontiers program is a series of space exploration missions being conducted by NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the ...

:* ''New Frontiers 2'' – ''Juno'', launched August 2011, –

orbiter mission * ''

Europa Clipper Europa Clipper (previously known as Europa Multiple Flyby Mission) is a space probe developed by NASA to study Europa (moon), Europa, a Galilean moon of Jupiter. It was launched on October 14, 2024. The spacecraft used a gravity assist from Mar ...

'', launched October 2024,

Saturn

:* ''

'', launched April 1973, –

and

, first to

:* ''

'', launched September 1977, – flybys of

and

; extended mission to explore

; most distant human-made object :* ''

'', launched August 1977, – flybys of

, and

; extended mission to explore

; first spacecraft to

and

* ''

Cassini–Huygens ''Cassini–Huygens'' ( ), commonly called ''Cassini'', was a space research, space-research mission by NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, i ...

'', launched October 1997, –

and its

:* ''New Frontiers 4'' – ''

Dragonfly A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of dragonflies are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threat ...

'', launching 2028, * ''

Enceladus Orbilander The Enceladus Orbilander is a proposed NASA Large strategic science missions, Flagship mission to Saturn, Saturn's moon Enceladus. The Enceladus Orbilander would spend a year and a half orbiting Enceladus and sampling its Enceladus#South polar ...

'', launching 2038,

Uranus

:* ''

'', launched August 1977, – flybys of

, and

; extended mission to explore

; first spacecraft to

and

Uranus Orbiter and Probe The Uranus Orbiter and Probe is an orbiter mission concept to study Uranus and its moons. The orbiter would also deploy an atmospheric probe to characterize Uranus's atmosphere. The concept is being developed as a potential large strategic sci ...

, launching 2032,

Neptune

:* ''

'', launched August 1977, – flybys of

, and

; extended mission to explore

; first spacecraft to

and

Asteroids/comets

(NMP) :*

NEAR Shoemaker ''Near Earth Asteroid Rendezvous – Shoemaker'' (''NEAR Shoemaker''), renamed after its 1996 launch in honor of planetary scientist Eugene Merle Shoemaker, Eugene Shoemaker, was a Robotic spacecraft, robotic space probe designed by the Johns ...

, launched February 1996, – close study of

433 Eros 433 Eros is a stony asteroid of the Amor group, and the first discovered, and second-largest near-Earth object. It has an elongated shape and a volume-equivalent diameter of approximately . Visited by the NEAR Shoemaker space probe in 1998, ...

Deep Space 1 ''Deep Space 1'' (DS1) was a NASA technology demonstration spacecraft which flew by an asteroid and a comet. It was part of the New Millennium Program, dedicated to testing advanced technologies. Launched on 24 October 1998, the ''Deep Space ...

(DS1), launched October 1998, – first spacecraft propelled by an

ion thruster An ion thruster, ion drive, or ion engine is a form of electric propulsion used for spacecraft propulsion. An ion thruster creates a cloud of positive ions from a neutral gas by ionizing it to extract some electrons from its atoms. The i ...

:* ''Discovery 4'' – ''

Stardust Stardust may refer to: * A type of cosmic dust, composed of particles in space Entertainment Songs * “Stardust” (1927 song), by Hoagy Carmichael * “Stardust” (David Essex song), 1974 * “Stardust” (Lena Meyer-Landrut song), 2012 * ...

'', launched February 1999, – follow-up for Deep Impact's primary mission to

9P/Tempel Tempel 1 (official designation: 9P/Tempel) is a periodic Jupiter-family comet discovered by Wilhelm Tempel in 1867. It completes an orbit of the Sun every 5.6 years. Tempel 1 was the target of the ''Deep Impact'' space mission, which photograph ...

:* ''Discovery 6'' –

CONTOUR Contour may refer to: * Contour (linguistics), a phonetic sound * Pitch contour * Contour (camera system), a 3D digital camera system * Contour Airlines * Contour flying, a form of low level flight * Contour, the KDE Plasma 4 interface for tab ...

, launched July 2002, :* ''Discovery 8'' – '' Deep Impact'' (''primary'');

EPOXI ''EPOXI'' was a compilation of NASA Discovery program missions led by the University of Maryland and principal investigator Michael A'Hearn, with co-operation from the Jet Propulsion Laboratory and Ball Aerospace. ''EPOXI'' uses the '' Deep I ...

(''extended''), launched January 2005, :* ''Discovery 9'' – ''

Dawn Dawn is the time that marks the beginning of twilight before sunrise. It is recognized by the diffuse sky radiation, appearance of indirect sunlight being Rayleigh scattering, scattered in Earth's atmosphere, when the centre of the Sun's disc ha ...

'', launched September 2007, – Vesta in 2011-2012, and Ceres in 2015-2018 :* ''Discovery 13'' – ''

Lucy Lucy is an English language, English feminine given name derived from the Latin masculine given name Lucius with the meaning ''as of light'' (''born at dawn or daylight'', maybe also ''shiny'', or ''of light complexion''). Alternative spellings ar ...

'', launched October 2021, – Will fly by one main-belt asteroid and seven Jupiter Trojan asteroids. :* ''Discovery 14'' – ''

Psyche Psyche (''Psyché'' in French) is the Greek term for "soul" ( ψυχή). Psyche or La Psyché may also refer to: Psychology * Psyche (psychology), the totality of the human mind, conscious and unconscious * ''Psyche'', an 1846 book about the unc ...

'', launched October 2023, *

:* ''New Frontiers 3'' –

OSIRIS-REx OSIRIS-REx was a NASA asteroid-study and sample-return mission that visited and collected samples from 101955 Bennu, a C-type asteroid, carbonaceous near-Earth object, near-Earth asteroid. The material, returned in September 2023, is expected ...

– launched September 2016, *

Double Asteroid Redirection Test The Double Asteroid Redirection Test (DART) was a NASA space mission aimed at testing a method of planetary defense against near-Earth objects (NEOs). It was designed to assess how much a spacecraft impact deflects an asteroid through its trans ...

(DART), launched November 2021, *

Near-Earth Asteroid Scout The Near-Earth Asteroid Scout (NEA Scout) was a mission by NASA to develop a controllable low-cost CubeSat solar sail spacecraft capable of encountering near-Earth asteroids (NEA). NEA Scout was one of ten CubeSats launched into a heliocentri ...

, launched November 2022,

Dwarf planets

:* ''New Frontiers 1'' – ''

New Horizons ''New Horizons'' is an Interplanetary spaceflight, interplanetary space probe launched as a part of NASA's New Frontiers program. Engineered by the Johns Hopkins University Applied Physics Laboratory (APL) and the Southwest Research Institut ...

'', launched January 2006, – flyby of

Pluto Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of Trans-Neptunian object, bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Su ...

and its

in 2015; first to

:* ''Discovery 9'' – ''

'', launched September 2007, – Vesta in 2011-2012, and Ceres in 2015-2018

Canceled or undeveloped missions

Comet Rendezvous Asteroid Flyby The Comet Rendezvous Asteroid Flyby (CRAF) was a cancelled plan for a NASA-led exploratory mission designed by the Jet Propulsion Laboratory during the mid-to-late 1980s and early 1990s, that planned to send a spacecraft to encounter an asteroi ...

(CRAF) *

Jupiter Icy Moons Orbiter The ''Jupiter Icy Moons Orbiter'' (JIMO) was a proposed NASA spacecraft designed to explore the icy moons of Jupiter. The main target was Europa, where an ocean of liquid water may harbor alien life. Ganymede and Callisto, which are now tho ...

(JIMO) * Mars Astrobiology Explorer-Cacher (MAX-C) *

Mars Telecommunications Orbiter The Mars Telecommunications Orbiter (MTO) was a cancelled Mars mission that was originally intended to launch in 2009 and would have established an Interplanetary Internet between Earth and Mars. The spacecraft would have arrived in a high orbi ...

(MTO) *

Asteroid Redirect Mission The Asteroid Redirect Mission (ARM), also known as the Asteroid Retrieval and Utilization (ARU) mission and the Asteroid Initiative, was a space mission proposed by NASA in 2013; the mission was later cancelled. The Asteroid Retrieval Robotic ...

(2013–2017) * Origins Program :* Space Interferometry Mission (SIM) :*

Terrestrial Planet Finder The Terrestrial Planet Finder (TPF) was a proposed project by NASA to construct a system of space telescopes for detecting extrasolar terrestrial planets. TPF was postponed several times and finally cancelled in 2011. There were two telescope ...

(TPF) * Pluto Kuiper Express (PLUTOKE) – ''replaced by

Old proposals

* Mars Scout program :* Aerial Regional-scale Environmental Survey (ARES) (2000-2010 concept) :*

TAU (spacecraft) TAU (Thousand Astronomical Units) was a proposed uncrewed interstellar probe that would go to a distance of one thousand astronomical units (1000 AU) from the Earth and Sun by the NASA Jet Propulsion Laboratory in 1987 using tested technology. O ...

- probe to 1000 AU (1980s concept)

References

Bibliography

* *

External links

NASA - Missions
{{DEFAULTSORT:NASA missions Lists of space missions Missions

X-Plane program

Human spaceflight

Early Obama administration review

Future

Robotic missions

Suborbital

Earth and Heliocentric satellites

Sun

Moon

Mercury

Venus

Mars

Jupiter

Saturn

Uranus

Neptune

Asteroids/comets

Dwarf planets

Canceled or undeveloped missions

Old proposals

See also

References

Bibliography

External links