List of Solar System probes

This is a list of space probes that have left Earth orbit (or were launched with that intention but failed), organized by their planned destination. It includes planetary probes, solar probes, and probes to asteroids and comets, but excludes lunar missions, which are listed separately at List of lunar probes and List of Apollo missions. Flybys (such as gravity assists) that were incidental to the main purpose of the mission are also included. Flybys of Earth are listed separately at List of Earth flybys. Confirmed future probes are included, but missions that are still at the concept stage, or which never progressed beyond the concept stage, are not.

Key

Colour key:

– Mission or flyby completed successfully (or partially successfully)     Failed or cancelled mission
– Mission en route or in progress (including mission extensions) Planned mission
  • means "tentatively identified", as classified by NASA. These are Cold War-era Soviet missions, mostly failures, about which few or no details have been officially released. The information given may be speculative.
  • Date is the date of:
  • closest encounter (flybys)
  • impact (impactors)
  • orbital insertion to end of mission, whether planned or premature (orbiters)
  • landing to end of mission, whether planned or premature (landers)
  • launch (missions that never got underway due to failure at or soon after launch)
In cases which do not fit any of the above, the event to which the date refers is stated. As a result of this scheme missions are not always listed in order of launch.
  • Some of the terms used under Type:
  • Flyby: The probe flies by an astronomical body, but does not orbit it
  • Orbiter: Part of a probe that orbits an astronomical body
  • Lander: Part of a probe that descend to the surface of an astronomical body
  • Rover: Part of a probe that acts as a vehicle to move on the solid-surface of an astronomical body
  • Penetrator: Part of a probe that impacts an astronomical body
  • Atmospheric probe or balloon: Part of a probe that descend through or floats in the atmosphere of an astronomical body; not restricted to weather balloons and other atmospheric sounders, as it can also be used for surface and subsurface imaging and remote sensing.
  • Sample return: Parts of the probe return to Earth with physical samples
  • Under Status, in the case of flybys (such as gravity assists) that are incidental to the main mission, "success" indicates the successful completion of the flyby, not necessarily that of the main mission.

Solar probes

While the Sun is not physically explorable with current technology, the following solar observation probes have been designed and launched to operate in heliocentric orbit or at one of the Earth–Sun Lagrangian points – additional solar observatories were placed in Earth orbit and are not included in this list:

1960–1969

Spacecraft Organization Date Type Status Notes Image Ref
Pioneer 5 United States NASA/
DOD
March–April 1960 orbiter success measured magnetic field phenomena, solar flare particles, and ionization in the interplanetary region 1960-001A
Pioneer 6(A) United States NASA December 1965 – still contactable in 2000 orbiter success network of solar-orbiting "space weather" monitors, observing solar wind, cosmic rays, and magnetic fields 1965-105A
Pioneer 7(B) United States NASA August 1966 – still contactable in 1995 orbiter success 1966-075A
Pioneer 8(C) United States NASA December 1967 – still contactable in 2001 orbiter success 1967-123A
Pioneer 9(D) United States NASA November 1968 – May 1983 orbiter success 1968-100A
Pioneer-E United States NASA 27 August 1969 orbiter failure intended as part of the Pioneer 6–9 network; failed to reach orbit PIONE

1974–1997

Spacecraft Organization Date Type Status Notes Image Ref
Helios A West Germany DFVLR/
United States NASA
November 1974 – 1982 orbiter success observations of solar wind, magnetic and electric fields, cosmic rays and cosmic dust between Earth and Sun 1974-097A
Helios B West Germany DFVLR/
United States NASA
January 1976 – 1985? orbiter success 1976-003A
ISEE-3 United States NASA 1978–1982 orbiter success observed solar phenomena in conjunction with earth-orbiting ISEE-1 and ISEE-2; later renamed International Cometary Explorer (ICE) and directed to Comet Giacobini-Zinner 1976-003A
Ulysses
(first pass)
Europe ESA/
United States NASA
1994 orbiter success south polar observations 1990-090B
1995 north polar observations
WIND United States NASA November 1994 – still active as of February 2020 orbiter success solar wind measurements 1994-071A
SOHO Europe ESA/
United States NASA
May 1996 – extended to December 2025 orbiter success investigation of Sun's core, corona, and solar wind; comet discoveries 1995-065A
ACE United States NASA August 1997 – projected until 2024 orbiter success solar wind observations 1997-045A

2000–present

Spacecraft Organization Date Type Status Notes Image Ref
Ulysses
(second pass)
Europe ESA/
United States NASA
2000 orbiter success south polar observations 1990-090B
2001 north polar observations
Genesis United States NASA 2001–2004 orbiter/
sample return
success solar wind sample return; crash landed on return to Earth, much data salvaged 2001-034A
STEREO A United States NASA December 2006 –
still active as of September 2021
orbiter success stereoscopic imaging of coronal mass ejections and other solar phenomena 2006-047A
STEREO B United States NASA December 2006 – October 2014.
August 2016 – October 2018
(communication lost between 1 October 2014 and 21 August 2016)
NASA directed that periodic recovery operations of Stereo-B cease with last support on October 17, 2018.
orbiter success stereoscopic imaging of coronal mass ejections and other solar phenomena 2006-047B
Ulysses
(third pass)
Europe ESA/
United States NASA
2007 orbiter success south polar observations 1990-090B
2008 partial success north polar observations; some data returned despite failing power and reduced transmission capacity
DSCOVR United States NOAA February 2015 – orbiter success solar wind and coronal mass ejection monitoring, as well as Earth climate monitoring 2015-007A
Parker Solar Probe United States NASA November 2018 – December 2025 orbiter/flyby
(approach 26 times)
en route close-range solar coronal study 2018-065A
Solar Orbiter Europe ESA 10 February 2020 (launch) orbiter en route solar and heliospheric physics 2020-010A
ASO-S

Kuafu project

China CNSA 8 October 2022 (launch) orbiter success Solar flares and coronal mass ejection monitoring Polar Orbit based Solar observatory 2022-129A
CuSP United States NASA 16 November 2022 orbiter success study particles and magnetic fields. CUSP
Aditya-L1 India ISRO 2 September 2023 (launch) orbiter en route Solar corona observation 2023-132A

Mercury probes

Spacecraft Organization Date Type Status Notes Image Ref
Mariner 10 United States NASA 29 March 1974 flyby success minimum distance 704 km 1973-085A
21 September 1974 48,069 km
16 March 1975 327 km
MESSENGER United States NASA 14 January 2008 flyby success minimum distance 200 km 2004-030A
6 October 2008 minimum distance 200 km
29 September 2009 minimum distance 228 km
18 March 2011 –
30 April 2015
orbiter success first spacecraft to orbit Mercury; unavoidable impact on the surface at end of mission
BepiColombo
(Mercury Cruise System)
Europe ESA/
Japan JAXA
1 October 2021 flyby success 2018-080A
23 June 2022
19 June 2023
September 2024 flyby en route
December 2024
January 2025
   Mercury
Planetary Orbiter
Europe ESA 5 December 2025 (orbital insertion)
14 March 2026 (final MPO orbit)
orbiter en route (attached to Mercury Cruise System)
Mio
(Mercury
Magnetospheric Orbiter)
Japan JAXA 5 December 2025 (orbital insertion) orbiter en route (attached to Mercury Cruise System)

Venus probes

Early programs encompassing multiple spacecraft include:

1961–1969

Spacecraft Organization Date Type Status Notes Image Ref
Tyazhely Sputnik Soviet Union (USSR) 4 February 1961 lander failure failed to escape from Earth orbit 1961-002A
Venera 1 Soviet Union (USSR) 19 May 1961 –
20 May 1961
flyby failure contact lost 7 days after launch; first spacecraft to fly by another planet 1961-003A
Mariner 1 United States NASA 22 July 1962 flyby failure guidance failure shortly after launch MARIN1
Sputnik 19 Soviet Union (USSR) 25 August 1962 lander failure failed to escape Earth orbit 1962-040A
Sputnik 20 Soviet Union (USSR) 1 September 1962 lander failure failed to escape Earth orbit 1962-043A
Sputnik 21 Soviet Union (USSR) 12 September 1962 flyby failure third stage exploded 1962-045A
Mariner 2 United States NASA 14 December 1962 flyby success first successful Venus flyby; minimum distance 34,773 km 1962-041A
Cosmos 21 Soviet Union (USSR) 11 November 1963 flyby? failure failed to escape Earth orbit 1963-044A
Venera 1964A Soviet Union (USSR) 19 February 1964 flyby failure failed to reach Earth orbit
Venera 1964B Soviet Union (USSR) 1 March 1964 flyby failure failed to reach Earth orbit
Cosmos 27 Soviet Union (USSR) 27 March 1964 flyby failure failed to escape Earth orbit 1964-014A
Zond 1 Soviet Union (USSR) 1964 flyby and possible lander failure contact lost en route 1964-016D
Cosmos 96 Soviet Union (USSR) 23 November 1965 lander failure did not depart low Earth orbit due to a launch failure 1965-094A
Venera 1965A Soviet Union (USSR) 26 November 1965 flyby failure launch vehicle failure?
Venera 2 Soviet Union (USSR) 27 February 1966 flyby failure ceased to operate en route 1965-091A
Venera 3 Soviet Union (USSR) 1 March 1966 lander failure contact lost before arrival; first spacecraft to impact on the surface of another planet 1965-092A
Kosmos 167 Soviet Union (USSR) 17 June 1967 lander failure failed to escape Earth orbit 1967-063A
Venera 4 Soviet Union (USSR) 18 October 1967 atmospheric probe success continued to transmit to an altitude of 25 km 1967-058A
Mariner 5 United States NASA 19 October 1967 flyby success minimum distance 5,000 km 1967-060A
Venera 5 Soviet Union (USSR) 16 May 1969 atmospheric probe success transmitted atmospheric data for 53 minutes, to an altitude of about 26 km 1969-001A
Venera 6 Soviet Union (USSR) 17 May 1969 atmospheric probe success transmitted atmospheric data for 51 minutes, to an altitude of perhaps 10–12 km 1969-002A

1970–1978

Spacecraft Organization Date Type Status Notes Image Ref
Cosmos 359 Soviet Union (USSR) 22 August 1970 lander? failure failed to escape Earth orbit 1970-065A
Venera 7 Soviet Union (USSR) 15 December 1970 lander success first successful landing on another planet; signals returned from surface for 23 minutes 1970-060A
Cosmos 482 Soviet Union (USSR) 31 March 1972 lander? failure failed to escape Earth orbit 1972-023A
Venera 8 Soviet Union (USSR) 22 July 1972 lander success signals returned from surface for 50 minutes 1972-021A
Mariner 10 United States NASA 5 February 1974 flyby success minimum distance 5768 km, en route to Mercury; first use of gravity assist by an interplanetary spacecraft 1973-085A
Venera 9 Soviet Union (USSR) 1975 orbiter success first spacecraft to orbit Venus; communications relay for lander; atmospheric and magnetic studies 1975-050A
22 October 1975 lander success first images from the surface; operated on surface for 53 minutes 1975-050D
Venera 10 Soviet Union (USSR) 1975 orbiter success communications relay for lander; atmospheric and magnetic studies 1975-054A
23 October 1975 lander success transmitted from surface for 65 minutes 1975-054D
Pioneer Venus Orbiter United States NASA 4 December 1978 –
1992
orbiter success atmospheric and magnetic studies 1978-051A
Pioneer Venus Multiprobe United States NASA 9 December 1978
bus probe transporter success deployed four atmospheric probes, then burnt up in Venusian atmosphere, continuing to transmit to 110 km altitude 1978-078A
large probe atmospheric probe success 1978-078D
north probe atmospheric probe success 1978-078E
day probe atmospheric probe success survived impact and continued to transmit from surface for over an hour 1978-078G
night probe atmospheric probe success 1978-078F
Venera 12 Soviet Union SAS
flight platform 21 December 1978 flyby success minimum distance 34,000 km; deployed lander and then acted as communications relay 1978-086A
descent craft 21 December 1978 lander partial success soft landing; transmissions returned for 110 minutes; failure of some instruments 1978-086C
Venera 11 Soviet Union SAS identical to Venera 12
   flight platform 25 December 1978 flyby success minimum distance 34,000 km; deployed lander and then acted as communications relay 1978-084A
descent craft 25 December 1978 lander partial success soft landing; transmissions returned for 95 minutes; failure of some instruments 1978-084D

1982–1999

Spacecraft Organization Date Type Status Notes Image Ref
Venera 13 Soviet Union SAS
   bus 1 March 1982 flyby success deployed lander and then acted as communications relay 1981-106A
descent craft 1 March 1982 lander success survived on surface for 127 minutes 1981-106D
Venera 14 Soviet Union SAS identical to Venera 13
bus 5 March 1982 flyby success deployed lander and then acted as communications relay 1981-110A
descent craft 5 March 1982 lander success survived on surface for 57 minutes 1981-110D
Venera 15 Soviet Union SAS 1983–1984 orbiter success radar mapping 1983-053A
Venera 16 Soviet Union SAS 1983–1984 orbiter success radar mapping; identical to Venera 15 1983-054A
Vega 1 Soviet Union SAS 11 June 1985 flyby success went on to fly by Halley's comet 1984-125A
lander failure instruments deployed prematurely 1984-125E
atmospheric balloon success floated at an altitude of about 54 km and transmitted for around 46 hours 1984-125F
Vega 2 Soviet Union SAS 15 June 1985 flyby success went on to fly by Halley's comet 1984-128A
lander success transmitted from surface for 56 minutes 1984-128E
atmospheric balloon success floated at an altitude of about 54 km and transmitted for around 46 hours 1984-128F
Galileo United States NASA 10 February 1990 flyby success gravity assist en route to Jupiter; minimum distance 16,000 km 1989-084B
Magellan United States NASA 10 August 1990 –
12 October 1994
orbiter success global radar mapping 1989-033B
Cassini United States NASA/
Europe ESA/
Italy ASI
26 April 1998 flyby success gravity assist en route to Saturn 1997-061A
24 June 1999

2006–present

Spacecraft Organization Date Type Status Notes Image Ref
Venus Express Europe ESA 11 April 2006 – 18 January 2015 orbiter success atmospheric studies; planetary imaging; magnetic observations 2005-045A
MESSENGER United States NASA 24 October 2006 flyby success gravity assist only; minimum distance 2990 km 2004-030A
6 June 2007 success minimum distance 300 km; en route to Mercury
Akatsuki
(PLANET-C)
Japan JAXA 6 December 2010 (Venus flyby) orbiter failure failed orbital insertion in 2010; success in 2015
science mission ongoing since May 2016
2010-020D
7 December 2015 (orbital insertion) – orbiter success
IKAROS Japan JAXA 8 December 2010 flyby success solar sail technology development / interplanetary space exploration 2010-020E
Shin'en
(UNITEC-1)
Japan UNISEC December 2010? flyby failure contact lost shortly after launch 2010-020F
Parker Solar Probe United States NASA October 2018 – November 2024 flyby (approach 7 times) en route gravity assist en route to solar corona 2018-065A
BepiColombo
(first pass)
Europe ESA/
Japan JAXA
15 October 2020 flyby success gravity assist en route to Mercury; minimum approach distance was about 10,720 km 2018-080A
Solar Orbiter Europe ESA 27 December 2020 flyby success gravity assist en route to inclined heliocentric orbit for solar polar observations 2020-010A
9 August 2021
BepiColombo
(second pass)
Europe ESA/
Japan JAXA
10 August 2021 flyby success gravity assist en route to Mercury, during which it may study Venus' atmosphere and solar environment 2018-080A
Solar Orbiter Europe ESA September 2022 flyby en route gravity assist en route to inclined heliocentric orbit 2020-010A
February 2025
JUICE Europe ESA August 2025 flyby Enroute gravity assist en route to Jupiter
Solar Orbiter Europe ESA December 2026 flyby en route gravity assist en route to inclined heliocentric orbit 2020-010A

Proposed

Spacecraft Organization Date Type Status Notes Image Ref
Rocket Lab's Venus probe United States MIT/Rocket Lab 30 December 2024 atmospheric probe under development To search for organic molecules in the Venusian cloud particles and constrain the particle composition.
Venus Orbiter Mission India ISRO December 2024 orbiter, atmospheric balloon under development To study the Venusian atmosphere and conduct geological mapping.
Venera-D Russia RKA 2029 orbiter, lander proposed
Dragonfly United States NASA 2027 flyby planned gravity assist en route to Titan
Solar Orbiter Europe ESA March 2028 flyby proposed mission extension 2020-010A
June 2029 proposed
September 2030 proposed
DAVINCI+ United States NASA 2028-2030 atmospheric probe planned
Tianwen-4 China CNSA April 2030 flyby proposed gravity assist en route to Jupiter
VERITAS United States NASA NET 2031 orbiter planned
EnVision Europe ESA 2034 orbiter planned
Venus In Situ Explorer United States NASA TBD lander or airplane proposed

Earth flybys

See List of Earth flybys

In addition, several planetary probes have sent back observations of the Earth-Moon system shortly after launch, most notably Mariner 10, Pioneers 10 and 11 and both Voyager probes (Voyager 1 and Voyager 2).

Lunar probes

See List of lunar probes

Mars probes

Major early programs encompassing multiple probes include:

1960–1969

Spacecraft Organization Date Type Status Notes Image Ref
Mars 1M No.1 Soviet Union USSR 10 October 1960 flyby failure failed to reach Earth orbit MARSNK1
Mars 1M No.2 Soviet Union USSR 14 October 1960 flyby failure failed to reach Earth orbit MARSNK2
Mars 1962A Soviet Union USSR 24 October 1962 flyby failure exploded in or en route to Earth orbit 1962-057A
Mars 1962B Soviet Union USSR 11 November 1962 (launch) lander failure broke up during transfer to Mars trajectory 1962-062A
Mars 1 Soviet Union USSR 19 June 1963 flyby failure contact lost en route; flew within approximately 193,000 km of Mars 1962-061A
Mariner 3 United States NASA 5 November 1964 flyby failure protective shield failed to eject, preventing craft from attaining correct trajectory 1964-073A
Mariner 4 United States NASA 15 July 1965 flyby success first close-up images of Mars 1964-077A
Zond 2 Soviet Union USSR 6 August 1965 flyby failure contact lost en route; flew within 1,500 km of Mars 1964-078C
Mariner 6 United States NASA 31 July 1969 flyby success 1969-014A
Mariner 7 United States NASA 5 August 1969 flyby success 1969-030A
Mars 1969A Soviet Union USSR 27 March 1969 (launch) orbiter failure launch failure MARS69A
Mars 1969B Soviet Union USSR 2 April 1969 (launch) orbiter failure launch failure MARS69B

1971–1976

Spacecraft Organization Date Type Status Notes Image Ref
Mariner 8 United States NASA 9 May 1971 (launch) orbiter failure launch vehicle failure MARINH
Kosmos 419 Soviet Union USSR 10 May 1971 (launch) orbiter failure failed to escape Earth orbit 1971-042A
Mariner 9 United States NASA 14 November 1971 –
27 October 1972
orbiter success first spacecraft to orbit another planet 1971-051A
Mars 2 Soviet Union USSR 27 November 1971 –
22 August 1972
orbiter success first Soviet spacecraft to orbit another planet 1971-045A
   Mars 2 Lander Soviet Union USSR 27 November 1971 lander and short range rover failure crashed; first manmade object to reach surface of Mars 1971-045D
Mars 3 Soviet Union USSR 2 December 1971 –
22 August 1972
orbiter partial success attained a different orbit than intended due to insufficient fuel 1971-049A
Mars 3 Lander Soviet Union USSR 2 December 1971 lander and short range rover partial success first soft landing on Mars; contact lost 110 sec after soft landing, first picture from surface 1971-049F
Mars 4 Soviet Union USSR 10 February 1974 orbiter failure orbit insertion failed, became flyby 1973-047A
Mars 5 Soviet Union USSR 12 February 1974 –
28 February 1974
orbiter success 1973-049A
Mars 6 Soviet Union USSR 12 March 1974 flyby success 1973-052A
Mars 6 Lander Soviet Union USSR 12 March 1974 lander failure contact lost 148 sec after parachute deployment (returned 224 seconds of atmospheric data)
Mars 7 Soviet Union USSR 9 March 1974 flyby success 1973-053A
Mars 7 Lander Soviet Union USSR 9 March 1974 lander failure missed Mars
Viking 1 Orbiter United States NASA 19 June 1976 –
17 August 1980
orbiter success 1975-075A
Viking 1 Lander United States NASA 20 July 1976 –
13 November 1982
lander success 1975-075C
Viking 2 Orbiter United States NASA 7 August 1976 –
25 July 1978
orbiter success 1975-083A
Viking 2 Lander United States NASA 3 September 1976 –
11 April 1980
lander success 1975-083C

1988–1999

Spacecraft Organization Date Type Status Notes Image Ref
Phobos 1 Soviet Union USSR 7 July 1988 (launch) orbiter failure contact lost en route to Mars 1988-058A
Phobos 2 Soviet Union USSR 29 January 1989 –
27 March 1989
orbiter partial success Mars orbit acquired, but contact lost shortly before Phobos approach phase and deployment of Phobos landers 1988-059A
Mars Observer United States NASA 25 September 1992 (launch) orbiter failure contact lost shortly before Mars orbit insertion 1992-063A
Mars 96 Russia RKA 16 November 1996 (launch) orbiter failure failed to escape Earth orbit 1996-064A
lander MARS96B
lander MARS96C
penetrator MARS96D
penetrator MARS96E
Mars Pathfinder United States NASA 4 July 1997 –
27 September 1997
lander success 1996-068A
    Sojourner United States NASA 6 July 1997 –
27 September 1997
rover success first Mars rover MESURPR
Mars Global Surveyor United States NASA 12 September 1997 –
2 November 2006
orbiter success 1996-062A
Mars Climate Orbiter United States NASA 23 September 1999 orbiter failure Mars orbit insertion failed due to navigation error. Part of Mars Surveyor '98. 1998-073A
Mars Polar Lander United States NASA 3 December 1999 lander failure Contact lost just prior to entering Martian atmosphere. Part of Mars Surveyor '98. 1999-001A
Deep Space 2 "Amundsen" United States NASA 3 December 1999 penetrator DEEPSP2
Deep Space 2 "Scott" United States NASA 3 December 1999 penetrator

2001–2009

Spacecraft Organization Date Type Status Notes Image Ref
2001 Mars Odyssey United States NASA 24 October 2001 – orbiter success studying climate and geology; communications relay for Spirit and Opportunity rovers
longest surviving spacecraft in orbit around a planet other than Earth
2001-014A
Nozomi Japan ISAS 14 December 2003 orbiter failure failed to attain Mars orbit, became flyby 1998-041A
Mars Express Europe ESA 25 December 2003 – orbiter success surface imaging and mapping; first European probe in Martian orbit 2003-022A
   Beagle 2 United Kingdom UK 25 December 2003 lander failure Deployed by the Mars Express; lost for 11 years and imaged by NASA's MRO in 2015 2003-022C
Mars Exploration Rover-A "Spirit" United States NASA 4 January 2004 – 22 March 2010 rover success became stuck in May 2009; then operating as a static science station until contact lost in March 2010 2003-027A
Mars Exploration Rover-B "Opportunity" United States NASA 25 January 2004 – 10 June 2018 rover success lost contact 10 June 2018 due to 2018 global dust storm. NASA concluded mission on 13 February 2019 after failed communication attempts since August 2018. 2003-032A
Mars Reconnaissance Orbiter United States NASA 10 March 2006 – orbiter success surface imaging and surveying 2005-029A
Rosetta Europe ESA 25 February 2007 flyby success gravity assist en route to asteroid and comet encounters 2004-006A
Phoenix United States NASA 25 May 2008 –
10 November 2008
lander success collection of soil samples near the northern pole to search for water and investigate Mars' geological history and biological potential 2007-034A
Dawn United States NASA 17 February 2009 flyby success gravity assist en route to Vesta and Ceres 2007-043A

2011–2018

Spacecraft Organization Date Type Status Notes Image Ref
Fobos-Grunt Russia RKA 8 November 2011 (launch) orbiter and Phobos sample return failure failed to escape Earth orbit 2011-065A
    Yinghuo-1 China CNSA orbiter YINGHUO-1
Mars Science Laboratory Curiosity United States NASA 6 August 2012 – rover success investigation of past and present habitability, climate and geology 2011-070A
Mangalyaan / Mars Orbiter Mission India ISRO 24 September 2014 – 27 September 2022 orbiter success first Indian spacecraft to orbit another planet, studying Martian atmosphere; mineralogical mapping. 2013-060A
MAVEN United States NASA 25 September 2014 – orbiter success studying Martian atmosphere 2013-063A
ExoMars Trace Gas Orbiter (ExoMars 2016) Europe ESA/
Russia RKA
19 October 2016 – orbiter success atmospheric gas analysis; communication relay for surface probes 2016-017A
    Schiaparelli EDM lander Europe ESA 19 October 2016 lander crashed upon landing landing test, meteorological observation
InSight United States NASA 26 November 2018 – 21 December 2022 lander success studied the deep interior of Mars, with a seismometer and a heat-flow probe. 2018-042A
MarCO A "WALL-E" United States NASA 26 November 2018 flyby success relaying data from InSight during its entry, descent, and landing
2018-042B
MarCO B "EVE" United States NASA 26 November 2018 flyby success 2018-042C

2020–Present

Spacecraft Organization Date Type Status Notes Image Ref
Emirates Mars Mission United Arab Emirates MBRSC 9 February 2021 – orbiter in orbit conduct studies of Martian atmosphere 2020-047A
Tianwen-1 orbiter China CNSA 10 February 2021 - orbiter in orbit orbital studies of Martian surface morphology, soil, and atmosphere 2020-049A
    Tianwen-1 Deployable Camera 1 China CNSA ~10 February 2021 flyby (post mission) success imaged Tianwen-1 in deep space
    Tianwen-1 Deployable Camera 2 China CNSA 10 February 2021 (released on 31 December 2021) orbiter success imaged Tianwen-1 orbiter and Northern Mars Ice Caps from Mars orbit.
    Tianwen-1 lander China CNSA 14 May 2021 lander landed Reaches end of designed lifespan after successful soft landing.
    Zhurong China CNSA 22 May 2021 - rover deployed in-situ studies of Martian surface morphology, soil, and atmosphere
    Tianwen-1 Remote Camera China CNSA 1 June 2021 lander success imaged Tianwen-1 lander and Zhurong rover on Mars
Mars 2020 Perseverance United States NASA 18 February 2021 - rover landed investigate past and present habitability, climate, and geology; produce O2 from CO2; collect samples for Mars Sample Return Mission 2020-052A
    Mars Helicopter Ingenuity United States NASA 3 April 2021 - autonomous UAV helicopter deployed experimental scout for the Perseverance rover. Took 1st flight successfully from takeoff to landing.
Psyche United States NASA 13 October 2023 (launch)
May 2026 (flyby)
flyby enroute gravity assist en route to Psyche

Proposed

Spacecraft Organization Date Type Status Notes Image Ref
Martian Moons Exploration (MMX) Japan JAXA 2024 (launch)
Mid-2025 (arrival)
orbiter planned monitoring Martian climate
Tianwen-2 (ZhengHe) China CNSA May 2025 (launch)
2028 (flyby)
flyby planned gravity assist en route to 311P/PANSTARRS
ExoMars Kazachok (ExoMars) Russia RKA /
Europe ESA
NET 2026 lander suspended This mission is currently suspended due to sanctions against Russia during the 2022 Russian invasion of Ukraine.
    Rosalind Franklin Europe ESA /
Russia RKA
NET 2026 rover suspended
Mars Orbiter Mission 2 India ISRO NET 2024 orbiter planned Orbital studies of Mars including Mars' ionosphere
Mars 2026 United States NASA July 2026 (launch) rover under study
Tianwen-3 China CNSA 2028 (orbiter/return module)
2028 (lander/ascent module)
2031 (samples to earth)
orbiter/return module,
lander/ascent module
planned Two spacecrafts: one consists of orbiter and return module, the other of lander, ascent module and a mobile sampling robot.
NASA-ESA Mars Sample Return United States NASA /
Europe ESA
2027 (orbiter)
2028 (lander)
2033 (samples to earth)
orbiter,
lander,
ascent vehicle,
2 autonomous UAV helicopters
planned lander carries ascent vehicle; and 2 Ingenuity class helicopters, that fetch Perseverance samples
Next Mars Orbiter (NeMO) United States NASA Late 2020s orbiter under study Laser communications relay, high-resolution mapping

Phobos probes

Spacecraft Organization Date Type Status Notes Image Ref
Phobos 1 Soviet Union USSR 7 July 1988 (launch) flyby failure contact lost en route to Mars 1988-058A
   DAS Soviet Union USSR 2 September 1988 fixed lander failure never deployed
Phobos 2 Soviet Union USSR 27 March 1989 (contact lost) flyby failure attained Mars orbit; contact lost prior to deployment of lander 1988-059A
   DAS Soviet Union USSR 27 March 1989 fixed lander failure never deployed
   "Frog" Soviet Union USSR 27 March 1989 mobile lander failure never deployed
Fobos-Grunt Russia RKA 8 November 2011 (launch) sample return failure failed to escape Earth orbit; launched with Yinghuo-1 Mars orbiter 2011-065A
MMX Japan JAXA 2024 (launch)
2025 (arrival)
sample return planned orbital insertion in 2025
    MMX rover France CNES/
Germany DLR
2025 rover planned

Ceres probes

Spacecraft Organization Date Type Status Notes Image Ref
Dawn United States NASA 6 March 2015 – 1 November 2018 orbiter success first spacecraft to orbit two different celestial bodies; previously visited Vesta 2007-043A

Asteroid probes

Target Spacecraft Organization Date Type Status Notes Image Ref
951 Gaspra Galileo United States NASA 29 October 1991 flyby success en route to Jupiter; minimum distance 1900 km 1989-084B
243 Ida Galileo United States NASA 28 August 1993 flyby success en route to Jupiter; minimum distance 2400 km; discovery of the first asteroid satellite Dactyl 1989-084B
1620 Geographos Clementine United States BMDO/
NASA
1994 flyby failure flyby cancelled due to equipment malfunction 1994-004A
253 Mathilde NEAR
Shoemaker
United States NASA 27 June 1997 flyby success flew within 1200 km of 253 Mathilde en route to 433 Eros 1996-008A
433 Eros NEAR
Shoemaker
United States NASA January 1999 orbiter failure became flyby due to software and communications problems (later attempt at orbit insertion succeeded; see below) 1996-008A
9969 Braille Deep Space 1 United States NASA 29 July 1999 flyby partial success no close-up images due to camera pointing error; went on to visit comet 19P/Borrelly 1998-061A
2685 Masursky Cassini United States NASA/
Europe ESA/
Italy ASI
23 January 2000 distant flyby success en route to Saturn 1997-061A
433 Eros NEAR
Shoemaker
United States NASA February 2000 –
February 2001
orbiter, became lander success improvised landing by orbiter at end of mission 1996-008A
5535 Annefrank Stardust United States NASA 2 November 2002 distant flyby success went on to visit comet 81P/Wild 1999-003A
25143 Itokawa Hayabusa Japan ISAS 2005–07 sample return success 2005: landed and collected dust grains.
2010: sample returned.
2003-019A
    MINERVA Japan ISAS 12 November 2005 hopper failure missed target
132524 APL New Horizons United States NASA June 2006 distant flyby success flew past Pluto successfully 2006-001A
2867 Šteins Rosetta Europe ESA 5 September 2008 flyby success en route to comet 67P/Churyumov–Gerasimenko 2004-006A
21 Lutetia Rosetta Europe ESA 11 July 2010 flyby success en route to comet 67P/Churyumov–Gerasimenko 2004-006A
4 Vesta Dawn United States NASA 16 July 2011 – 5 September 2012 orbiter success first spacecraft to orbit two different celestial bodies; now orbiting Ceres 2007-043A
4179 Toutatis Chang'e 2 China CNSA 13 December 2012 flyby success came within 3.2 km (2.0 mi) to Toutatis 2010-050A
2000 DP107 PROCYON Japan University of Tokyo / JAXA 12 May 2016 flyby failure launched with Hayabusa2 in 2014; mission abandoned after ion thruster failure 2014-076D
162173 Ryugu Hayabusa2 Japan JAXA 27 June 2018 – 13 November 2019 sample return success asteroid rendezvous in June 2018, sample capture in 2019; returned sample to Earth on 5 December 2020 2014-076A
    Minerva II-1A Japan JAXA 21 September 2018 hopper success
    Minerva II-1B Japan JAXA 21 September 2018 hopper success
    MASCOT Germany DLR/
France CNES
3 October 2018 mobile lander success
    SCI Japan JAXA 5 April 2019 impactor success
    DCAM-3 Japan JAXA 5 April 2019 orbiter success observing SCI's impact, and the ejecta created by the impact
    Minerva II-2 Japan JAXA 2 October 2019 hopper failure Rover failed before deployment, it was deployed in orbit around the asteroid to perform gravitational measurements before it impacted on 8 October 2019.
101955 Bennu OSIRIS-REx United States NASA August 2018 sample return orbiter/sample return/ flyby orbital insertion in 2018, sample capture in 2020, a flyby in 2021, return to Earth in 2023 2016-055A
2002 GT Deep Impact United States NASA January 2020 flyby failure contact lost; previously visited comet 103P/Hartley 2005-001A
65803 Didymos DART United States NASA 26 September 2022 flyby/impactor success kinetic impactor of Dimorphos to test planetary defense 2021-110A
    LICIACube Italy ASI 26 September 2022 flyby success observe DART's impact
2020 GE (tentative) Near-Earth Asteroid Scout United States NASA 16 November 2022 (launch) flyby failure Small spacecraft asteroid flyby technology demonstration. Communication failure NEA-SCOUT
152830 Dinkinesh Lucy United States NASA 1 November 2023 flyby success main-belt asteroid flyby en route to Jupiter Trojans; minimum distance 425 km; discovered a natural satellite of the asteroid 2021-093A
52246 Donaldjohanson Lucy United States NASA April 2025 flyby enroute main-belt asteroid flyby en route to Jupiter Trojans 2021-093A
16 Psyche Psyche United States NASA 13 October 2023 (launch)
April 2029 (arrival)
orbiter enroute Selected for mission #14 of NASA's Discovery Program to explore a metallic asteroid.
469219 Kamoʻoalewa Tianwen-2 (ZhengHe) China CNSA May 2025 (launch)
2026 (orbit)
sample return planned orbit then return sample from an Apollo NEA
2019 VL5 China Asteroid deflection probe China CNSA 2025 (launch) flyby/impactor planned probes to observe/impact an Aten NEA
2001 CC21 Hayabusa2 Japan JAXA 2026 flyby en route 2014-076A
3548 Eurybates Lucy United States NASA August 2027 flyby enroute First flyby of a Jupiter trojan 2021-093A
15094 Polymele Lucy United States NASA September 2027 flyby enroute 2021-093A
65803 Didymos Hera Europe ESA 2027 orbiter planned studying effects of DART's impact on the asteroid
    APEX Europe ESA 2027 orbiter planned to be deployed from Hera
    Juventas Europe ESA 2027 orbiter planned to be deployed from Hera
(65803) Dimorphos APEX Europe ESA lander planned
Juventas Europe ESA lander planned
11351 Leucus Lucy United States NASA April 2028 flyby enroute 2021-093A
21900 Orus Lucy United States NASA November 2028 flyby enroute 2021-093A
3200 Phaethon DESTINY+ Japan JAXA 2024 (launch)
2028 (flyby)
flyby planned First flyby of a rock comet
223 Rosa JUICE Europe ESA 14 April 2023 (launch)
2028 (flyby)
Flyby enroute en route to Jupiter and it's moons
99942 Apophis OSIRIS-APEX (formerly OSIRIS-REx) United States NASA 2029 orbiter planned after Bennu sample return study of a C-type asteroid in 2029 2016-055A
1998 KY26 Hayabusa2 Japan JAXA 2030 flyby en route flyby of a fast rotator asteroid 2014-076A
P/2013 P5 Tianwen-2 (ZhengHe) China CNSA May 2025 (launch)
2034 (orbit)
orbiter, lander planned study of an asteroid/main-belt comet
Patroclus and Menoetius Lucy United States NASA March 2033 flyby enroute First flyby of a Trojan Camp Jupiter Trojan 2021-093A

Jupiter probes

Spacecraft Organization Date Type Status Notes Image Ref
Pioneer 10 United States NASA 3 December 1973 flyby success first probe to cross the asteroid belt; first Jupiter probe; first man-made object on an interstellar trajectory; now in the outer regions of the Solar System but no longer contactable 1972-012A
Pioneer 11 United States NASA 4 December 1974 flyby success went on to visit Saturn 1973-019A
Voyager 1 United States NASA 5 March 1979 flyby success went on to visit Saturn 1977-084A
Voyager 2 United States NASA 9 July 1979 flyby success went on to visit Saturn, Uranus and Neptune 1977-076A
Ulysses
(first pass)
Europe ESA/
United States NASA
February 1992 flyby success gravity assist en route to inclined heliocentric orbit for solar polar observations 1990-090B
Galileo Orbiter United States NASA/
Germany West Germany
7 December 1995 –
21 September 2003
orbiter success also flew by various of Jupiter's moons; intentionally flown into Jupiter at end of mission; first spacecraft to orbit Jupiter; first spacecraft to flyby an asteroid 1989-084B
   Galileo Probe United States NASA 7 December 1995 atmospheric probe success first probe to enter Jupiter's atmosphere 1989-084E
Cassini United States NASA/
Europe ESA/
Italy ASI
December 2000 flyby success gravity assist en route to Saturn 1997-061A
Ulysses
(second pass)
Europe ESA/
United States NASA
2003–04 distant flyby success 1990-090B
New Horizons United States NASA 28 February 2007 flyby success gravity assist en route to Pluto 2006-001A
Juno United States NASA 5 July 2016 – July 2018, extended to July 2021 and then September 2025 orbiter success First solar-powered Jupiter orbiter, first mission to achieve a polar orbit of Jupiter. 2011-040A
JUICE Europe ESA 14 April 2023 (launch) orbiter enroute mission to study Jupiter's three icy moons Callisto, Europa and Ganymede, eventually orbiting Ganymede as the first spacecraft to orbit a satellite of another planet.
Europa Clipper United States NASA 2024 orbiter planned planned to orbit Jupiter and fly by Europa multiple times
IHP-1 China CNSA 2024 (launch), 2029 (Jupiter closest approach) flyby under study Proposed Interstellar Heliosphere Probe with Jovian gravity assist
IHP-2 China CNSA 2025 (launch), 2033 (Jupiter closest approach) flyby under study Proposed Interstellar Heliosphere Probe with Jovian gravity assist (and later Neptune and KBO flybys)
Tianwen-4 China CNSA September 2029 orbiter planned Planned Jupiter orbiter with attached Uranus probe

Ganymede probes

Spacecraft Organization Date Type Status Notes Image Ref
JUICE Europe ESA 14 April 2023 (launch) orbiter enroute mission to study Jupiter's three icy moons Callisto, Europa and Ganymede, eventually orbiting Ganymede as the first spacecraft to orbit a satellite of another planet.

Saturn probes

Spacecraft Organization Date Type Status Notes Image Ref
Pioneer 11 United States NASA 1 September 1979 flyby success previously visited Jupiter 1973-019A
Voyager 1 United States NASA 12 November 1980 flyby success previously visited Jupiter 1977-084A
Voyager 2 United States NASA 5 August 1981 flyby success previously visited Jupiter, went on to visit Uranus and Neptune 1977-076A
Cassini United States NASA/
Europe ESA/
Italy ASI
1 July 2004 – 15 September 2017 orbiter success also performed flybys of a number of Saturn's moons, and deployed the Huygens Titan lander; first spacecraft to orbit Saturn 1997-061A

Titan probes

Spacecraft Organization Date Type Status Notes Image Ref
Huygens Europe ESA 14 January 2005 atmospheric probe, lander success deployed by Cassini; first probe to land on a satellite of another planet 1997-061C
Dragonfly United States NASA July 2028 rotorcraft lander planned planned lander and aircraft, study prebiotic chemistry and extraterrestrial habitability.

Uranus probes

Spacecraft Organization Date Type Status Notes Image Ref
Voyager 2 United States NASA 24 January 1986 flyby success previously visited Jupiter and Saturn; went on to visit Neptune 1977-076A
Tianwen-4 China CNSA 2029 or early 2030s flyby planned Planned Jupiter orbiter with attached Uranus probe
Uranus Orbiter and Probe United States NASA 2031 Orbiter and Probe under study highest priority Flagship-class mission by the 2023–2032 Planetary Science Decadal Survey

Neptune probes

Spacecraft Organization Date Type Status Notes Image Ref
Voyager 2 United States NASA 25 August 1989 flyby success previously visited Jupiter, Saturn and Uranus 1977-076A
IHP-2 China CNSA 2024 (launch), 2038 (Neptune closest approach) flyby under study Proposed heliosphere probe with Neptunian flyby and possible atmospheric probe

Pluto probes

Spacecraft Organization Date Type Status Notes Image Ref
New Horizons United States NASA 14 July 2015 flyby success later flew by Kuiper belt object 486958 Arrokoth when it was 43.4 AU from the Sun. 2006-001A

Comet probes

Target Spacecraft Organization Date Type Status Notes Image Ref
21P/Giacobini-Zinner ICE (formerly ISEE3) United States NASA 11 September 1985 flyby success previously solar monitor ISEE3; went on to observe Halley's Comet 1978-079A
1P/Halley Vega 1 Soviet Union SAS 6 March 1986 flyby success minimum distance 8,890 km; previously visited Venus 1984-125A
1P/Halley Suisei Japan ISAS 8 March 1986 flyby success 151,000 km 1985-073A
1P/Halley Vega 2 Soviet Union SAS 9 March 1986 flyby success minimum distance 8,890 km; previously visited Venus 1984-128A
1P/Halley Sakigake Japan ISAS March 1986 distant flyby partial success minimum distance 6.99 million km 1985-001A
1P/Halley Giotto Europe ESA 14 March 1986 flyby success minimum distance 596 km; went on to visit comet 26P/Grigg–Skjellerup 1985-056A
1P/Halley ICE (formerly ISEE3) United States NASA 28 March 1986 distant obser-
vations
success minimum distance 32 million km; previously visited comet 21P/Giacobini–Zinner 1978-079A
26P/Grigg–Skjellerup Giotto Europe ESA 10 July 1992 flyby success previously visited Halley's Comet 1985-056A
45P/
Honda–Mrkos–Pajdusakova
Sakigake Japan ISAS 1996 flyby failure contact lost; previously visited Halley's Comet 1985-001A
21P/Giacobini-Zinner Sakigake Japan ISAS 1998 flyby failure
55P/Tempel-Tuttle Suisei Japan ISAS 1998 flyby failure abandoned due to lack of fuel; previously visited Halley's Comet 1985-073A
21P/Giacobini-Zinner Suisei Japan ISAS 1998 flyby failure
107P/Wilson-Harrington Deep Space 1 United States NASA January 2001 flyby failure abandoned due to problems with the star tracker, but was re-tasked to fly by comet 19P/Borrelly 1998-061A
19P/Borrelly Deep Space 1 United States NASA 22 September 2001 flyby success previously visited asteroid 9969 Braille 1998-061A
2P/Encke CONTOUR United States NASA 2003 flyby failure contact lost shortly after launch 2002-034A
81P/Wild Stardust United States NASA 2 January 2004 flyby, sample return success sample returned January 2006; also visited asteroid 5535 Annefrank 1999-003A
9P/Tempel Deep Impact United States NASA July 2005 flyby success 2005-001A
    Impactor United States NASA 4 July 2005 impactor success
73P/
Schwassmann-Wachmann
CONTOUR United States NASA 2006 flyby failure contact lost shortly after launch 2002-034A
6P/d'Arrest CONTOUR United States NASA 2008 flyby failure contact lost shortly after launch 2002-034A
103P/Hartley Deep Impact (redesignated EPOXI) United States NASA 4 November 2010 flyby success mission extension (target changed from comet Boethin) 2005-001A
9P/Tempel Stardust (redesignated NExT) United States NASA 14 February 2011 flyby success mission extension 1999-003A
67P/Churyumov–
Gerasimenko
Rosetta Europe ESA 6 August 2014 – 30 September 2016 orbiter success flybys of asteroids 2867 Šteins and 21 Lutetia completed; intentionally impacted at end of mission 2004-006A
    Philae Europe ESA 12 November 2014 – 9 July 2015 lander success 2004-006C
TBD
(potentially an interstellar object)
Comet Interceptor Europe ESA 2029 (launch) flyby planned flyby of a pristine comet, will initially be parked at the Sun-Earth L2 point until a suitable destination is identified
311P/PANSTARRS Tianwen-2 (ZhengHe) China CNSA 2025 (launch)
2034 (orbit)
orbiter, lander planned study of an asteroid/main-belt comet

Kuiper Belt probes

Target Spacecraft Organization Date Type Status Notes Image Ref
486958 Arrokoth New Horizons United States NASA 1 January 2019 flyby success extended mission after Pluto, currently sending data from flyby; may flyby another object in 2020s. 2006-001A
To Be Determined IHP-2 China CNSA 2024 (launch,) after 2038 (KBO flyby) flyby under study Proposed Interstellar Heliosphere Probe with potential KBO target

Probes leaving the Solar System

Spacecraft Organization Status Notes Image Ref
Pioneer 10 United States NASA success Left Jupiter in December 1973. Mission ended March 1997. Last contact 23 January 2003. Craft now presumed dead; no further contact attempts planned. 1972-012A
Pioneer 11 United States NASA success Left Saturn in September 1979. Last contact September 1995. The craft's antenna cannot be maneuvered to point to Earth, and it is not known if it is still transmitting. No further contact attempts are planned. 1973-019A
Voyager 1 United States NASA success Left Saturn in November 1980. Still in regular contact and transmitting scientific data. 1977-084A
Voyager 2 United States NASA success Left Neptune in August 1989. Still in regular contact and transmitting scientific data. 1977-076A
New Horizons United States NASA success Left Pluto 14 July 2015; flew by Kuiper belt object 486958 Arrokoth on 1 January 2019 when it was 43.4 AU from the Sun. 2006-001A
IHP-1 China CNSA under study Proposed Interstellar Heliosphere Probe with a 2024 launch date. Anticipated to reach a distance of at least 85 AU from Earth by 2049
IHP-2 China CNSA under study Proposed Interstellar Heliosphere Probe with a 2024 launch date. Anticipated to reach a distance of at least 83 AU from Earth by 2049

Other probes to leave Earth orbit

For completeness, this section lists probes that have left (or will leave) Earth orbit, but are not primarily targeted at any of the above bodies.

Spacecraft Organization Date Location Status Notes Image Ref
WMAP United States NASA 30 June 2001 (launch) –
October 2010 (end)
Sun-Earth L2 point success cosmic background radiation observations; sent to graveyard orbit after 9 years of use. 2001-027A
Spitzer Space Telescope United States NASA 25 August 2003 (launch) –
30 January 2020 (end)
Earth-trailing heliocentric orbit success infrared astronomy 2003-038A
Kepler United States NASA 6 March 2009 (launch) Earth-trailing heliocentric orbit completed (2009–2018) search for extrasolar planets 2009-011A
Herschel Space Observatory Europe ESA 14 May 2009 (launch) Lissajous orbit around Sun-Earth L2 point completed study of formation and evolution of galaxies and stars 2009-026A
Planck Europe ESA 14 May 2009 (launch) Lissajous orbit around Sun-Earth L2 point completed (2009–2013) cosmic microwave background observations 2009-026B
IKAROS Japan JAXA 20 May 2010 (launch) Earth-Venus transfer heliocentric orbit operational solar sail technology development / interplanetary space exploration 2010-020E
Shin'en
(UNITEC-1)
Japan UNISEC failure technology development; contact lost shortly after launch 2010-020F
Chang'e 2 China CNSA 25 August 2011 (arrive) –
15 April 2012 (end)
Sun-Earth L2 point success Left the point on 15 April 2012, then flew by asteroid 4179 Toutatis 2010-050A
Gaia Europe ESA 19 December 2013 (launch) Lissajous orbit around Sun-Earth L2 point success astrometry mission to measure the position and motion of 1 billion stars 2013-074A
Shin'en 2 Japan Kyushu Institute of Technology 3 December 2014 (launch) heliocentric orbit success amateur radio satellite / material demonstration 2014-076B
ARTSAT2:DESPATCH Japan Tama Art University success deep space artwork / amateur radio satellite 2014-076C
LISA Pathfinder Europe ESA 3 December 2015 (launch) –
30 June 2017 (end)
Halo orbit around Sun-Earth L1 point success test mission for proposed LISA gravitational wave observatory 2015-070A
Spektr-RG Russia Germany 13 July 2019 (launch) Halo orbit around Sun-Earth L2 point operational X-ray astronomy 2019-040A
Chang'e 5 China CNSA 23 November 2020 (launch) -
30 August 2021 (left L1)
Halo orbit about Sun-Earth L1 point success test mission post lunar sample return 2020-087A
James Webb Space Telescope United States NASA
Europe ESA
Canada CSA
25 December 2021 (launch) Sun-Earth L2 point in orbit infrared astronomy 2021-130A
ArgoMoon Italy ASI 16 November 2022 (launch) High Earth Orbit with Lunar Flybys (heliocentric) in orbit image the ICPS and perform deep space Nanotechnology experiments. ARGOMOON
BioSentinel United States NASA heliocentric orbit in orbit it contains yeast cards that will be rehydrated in space, designed to detect, measure, and compare the effects of deep space radiation. BIOSENTNL
Team Miles United States Fluid & Reason in orbit demonstrate low-thrust plasma propulsion in deep space. TEAMMILES
Euclid Europe ESA 1 July 2023 (launch) Halo orbit around Sun-Earth L2 point enroute measure the rate of expansion of the Universe through time to better understand dark energy and dark matter
Miyin China CASC 2030 Sun-Earth L2 under development mid-infrared interferometry, 4 telescopes + beam-combiner

Cancelled probes and missions

Target Spacecraft Organization Date Type Status Notes Image Ref
Mercury BepiColombo Mercury Surface Element Europe ESA lander cancelled
Moon LUNAR-A Japan JAXA orbiter, penetrators cancelled originally scheduled for 1995, cancelled 2007 LUNAR-A
Mars Mars Surveyor 2001 Lander United States NASA 2001 lander cancelled spacecraft bus repurposed for Phoenix lander MS2001L
Mars Beagle 2: Evolution 2004 lander cancelled
Mars NetLander France CNES/
Europe ESA
lander cancelled
Mars Mars Telecommunications Orbiter United States NASA 2010 orbiter cancelled Mission could be fulfilled by the proposed NeMO Mission
Phobos, Deimos Aladdin United States NASA sample return not selected
Europa Europa Orbiter United States NASA orbiter cancelled
Europa, Ganymede, Callisto Jupiter Icy Moons Orbiter United States NASA 2021 orbiter cancelled
Pluto Pluto Fast Flyby United States NASA 2010 flyby cancelled Re-proposed as Pluto Kuiper Express
Pluto Pluto Kuiper
Express
United States NASA 2012 flyby cancelled Replaced by New Horizons PLUTOKE
4660 Nereus Hayabusa Japan ISAS sample return cancelled rerouted to 25143 Itokawa 2003-019A
3840 Mimistrobell Rosetta Europe ESA 2006 flyby cancelled rerouted 2004-006A
4979 Otawara Rosetta Europe ESA 2006 flyby cancelled rerouted 2004-006A
4660 Nereus Near Earth Asteroid Prospector SpaceDev sample return cancelled
46P/Wirtanen Rosetta Europe ESA 2011 orbiter cancelled rerouted to 67P/Churyumov–Gerasimenko 2004-006A

See also


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