List of Solar System probes

For a list of active probes only, see List of active Solar System probes. For a list of landers only, see Landings on other planets.

This is a list of all 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 manned lunar spacecraft (listed separately at List of Apollo missions). Flybys (such as gravity assists) that were incidental to the main purpose of the mission are also included. 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
  • 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. Note that as a result of this scheme missions are not always listed in order of launch.
  • 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
  • Sample return: Parts of the probe return back to Earth with physical samples

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:

Solar Probes (List)
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 [2]
Pioneer 6 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 [3]
Pioneer 7 United States NASA August 1966 – still contactable in 1995 orbiter success [4]
Pioneer 8 United States NASA December 1967 – still contactable in 2001 orbiter success [5]
Pioneer 9 United States NASA November 1968 – May 1983 orbiter success [6]
Pioneer-E United States NASA 27 August 1969 orbiter failure intended as part of the Pioneer 6–9 network; failed to reach orbit [7]
Helios A United States NASA/
West Germany BWF
November 1974 – 1982 orbiter success observations of solar wind, magnetic and electric fields, cosmic rays and cosmic dust between Earth and Sun [8]
Helios B United States NASA/
West Germany BWF
January 1976 – 1985? orbiter success [9]
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 [10]
Ulysses
(first pass)
ESA/
United States NASA
1994 orbiter success south polar observations [11]
1995 north polar observations
WIND United States NASA November 1994 — still returning data (as of June 2015)[12] orbiter success solar wind measurements [13]
SOHO ESA/
United States NASA
May 1996 – mission extended until 31 December 2016[14] orbiter success investigation of Sun's core, corona, and solar wind; comet discoveries [15]
ACE United States NASA August 1997 – still returning data (as of June 2015)[16] orbiter success solar wind observations [17]
Ulysses
(second pass)
ESA/
United States NASA
2000 orbiter success south polar observations [11]
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 [18]
STEREO A United States NASA December 2006 – still returning data (as of June 2015)[19][20] orbiter success stereoscopic imaging of coronal mass ejections and other solar phenomena [21]
STEREO B United States NASA December 2006 – still returning data (as of June 2015)[19][20] orbiter success [22]
Ulysses
(third pass)
ESA/
United States NASA
2007 orbiter success south polar observations [11]
2008 partial success north polar observations; some data returned despite failing power and reduced transmission capacity
DSCOVR United States NOAA February 2015 – present orbiter success solar wind and coronal mass ejection monitoring, as well as Earth climate monitoring [23]
Solar Sentinels United States NASA 2015 multi-probe orbiter planned six probes watching the sun [24]
"Solar Orbiter" ESA 2018 orbiter planned solar and heliospheric physics [25]
Solar Probe Plus United States NASA 2018[26] orbiter planned close-range coronal observations [27]
Intergelio-Zond Russia RKA 2019 orbiter planned close-range solar observations [28]
Aditya India ISRO 2017-2018 orbiter planned to study Solar Corona [29]

Mercury probes

Mercury Probes (List)
Spacecraft Organization Date Type Status Notes Image Ref
Mariner 10 United States NASA 29 March 1974 flyby success minimum distance 704 km [30]
21 September 1974 48,069 km
16 March 1975 327 km
MESSENGER United States NASA 14 January 2008 flyby success minimum distance 200 km [31]
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 ESA/
Japan JAXA
27 January 2017 (launch)
1 January 2024 (orbital insertion)
1 April 2025 (end of nominal mission)
[32]
   Mercury
Planetary Orbiter
ESA orbiter under construction
Mercury Magnetospheric
Orbiter
Japan JAXA orbiter testing

Venus probes

Main article: Exploration of Venus

1961–1965

Venus Probes (List) [1961-1965]
Spacecraft Organization Date Type Status Notes Image Ref
Sputnik 7 Soviet Union (USSR) 4 February 1961 lander failure failed to escape from Earth orbit [33]
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 [34]
Mariner 1 United States NASA 22 July 1962 flyby failure guidance failure shortly after launch [35]
Sputnik 19 Soviet Union (USSR) 25 August 1962 lander failure failed to escape Earth orbit [36]
Sputnik 20 Soviet Union (USSR) 1 September 1962 lander failure failed to escape Earth orbit [37]
Sputnik 21 Soviet Union (USSR) 12 September 1962 flyby failure third stage exploded [38]
Mariner 2 United States NASA 14 December 1962 flyby success first successful Venus flyby; minimum distance 34,773 km [39]
Cosmos 21 Soviet Union (USSR) 11 November 1963 flyby? failure failed to escape Earth orbit [40]
Venera 1964A Soviet Union (USSR) 19 February 1964 flyby failure failed to reach Earth orbit [41]
Venera 1964B Soviet Union (USSR) 1 March 1964 flyby failure failed to reach Earth orbit [41]
Cosmos 27 Soviet Union (USSR) 27 March 1964 flyby failure failed to escape Earth orbit [42]
Zond 1 Soviet Union (USSR) 1964 flyby and possible lander failure contact lost en route [43]
Cosmos 96 Soviet Union (USSR) 23 November 1965 lander failure exploded? [44]
Venera 1965A Soviet Union (USSR) 26 November 1965 flyby failure launch vehicle failure? [41]

1966–1970

Spacecraft Organization Date Type Status Notes Image Ref
Venera 2 Soviet Union (USSR) 27 February 1966 flyby failure ceased to operate en route [45]
Venera 3 Soviet Union (USSR) 1 March 1966 lander failure contact lost before arrival; first spacecraft to impact on the surface of another planet [46]
Kosmos 167 Soviet Union (USSR) 17 June 1967 lander failure failed to escape Earth orbit [47]
Venera 4 Soviet Union (USSR) 18 October 1967 atmospheric probe success continued to transmit to an altitude of 25 km [48]
Mariner 5 United States NASA 19 October 1967 flyby success minimum distance 5,000 km [49]
Venera 5 Soviet Union (USSR) 16 May 1969 atmospheric probe success transmitted atmospheric data for 53 minutes, to an altitude of about 26 km [50]
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 [51]
Cosmos 359 Soviet Union (USSR) 22 August 1970 lander? failure failed to escape Earth orbit [52]
Venera 7 Soviet Union (USSR) 15 December 1970 lander success first successful landing on another planet; signals returned from surface for 23 minutes [53]

1971–1975

Spacecraft Organization Date Type Status Notes Image Ref
Cosmos 482 Soviet Union (USSR) 31 March 1972 lander? failure failed to escape Earth orbit [54]
Venera 8 Soviet Union (USSR) 22 July 1972 lander success signals returned from surface for 50 minutes [55]
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 [30]
Venera 9 Soviet Union (USSR) 1975 orbiter success first spacecraft to orbit Venus; communications relay for lander; atmospheric and magnetic studies [56]
22 October 1975 lander success first images from the surface; operated on surface for 53 minutes [57]
Venera 10 Soviet Union (USSR) 1975 orbiter success communications relay for lander; atmospheric and magnetic studies [58]
23 October 1975 lander success transmitted from surface for 65 minutes [59]

1978

Spacecraft Organization Date Type Status Notes Image Ref
Pioneer Venus Orbiter United States NASA 4 December 1978 
1992
orbiter success atmospheric and magnetic studies [60]
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 [61]
large probe atmospheric probe success [62]
north probe atmospheric probe success [63]
day probe atmospheric probe success survived impact and continued to transmit from surface for over an hour [64]
night probe atmospheric probe success [65]
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 [66]
descent craft 21 December 1978 lander partial success soft landing; transmissions returned for 110 minutes; failure of some instruments [67]
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 [68]
descent craft 25 December 1978 lander partial success soft landing; transmissions returned for 95 minutes; failure of some instruments [69]

1982–1994

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 [70]
descent craft 1 March 1982 lander success survived on surface for 127 minutes [71]
Venera 14 Soviet Union SAS identical to Venera 13
bus 5 March 1982 flyby success deployed lander and then acted as communications relay [72]
descent craft 5 March 1982 lander success survived on surface for 57 minutes [73]
Venera 15 Soviet Union SAS 1983–1984 orbiter success radar mapping [74]
Venera 16 Soviet Union SAS 1983–1984 orbiter success radar mapping; identical to Venera 15 [75]
Vega 1 Soviet Union SAS 11 June 1985 flyby success went on to fly by Halley's comet [76]
lander failure instruments deployed prematurely [77]
atmospheric balloon success floated at an altitude of about 54 km and transmitted for around 46 hours [78]
Vega 2 Soviet Union SAS 15 June 1985 flyby success went on to fly by Halley's comet [79]
lander success transmitted from surface for 56 minutes [80]
atmospheric balloon success floated at an altitude of about 54 km and transmitted for around 46 hours [81]
Galileo United States NASA 10 February 1990 flyby success gravity assist en route to Jupiter; minimum distance 16,000 km [82]
Magellan United States NASA 10 August 1990
12 October 1994
orbiter success global radar mapping [83]

1998 – 2015

Spacecraft Organization Date Type Status Notes Image Ref
Cassini United States NASA/
ESA/
Italy ASI
26 April 1998 flyby success gravity assist en route to Saturn [84]
24 June 1999
Venus Express ESA 11 April 2006 18 January 2015[85] orbiter success atmospheric studies; planetary imaging; magnetic observations [86]
MESSENGER United States NASA 24 October 2006 flyby success gravity assist only; minimum distance 2990 km [31]
6 June 2007 success minimum distance 300 km; en route to Mercury
Akatsuki
(PLANET-C)
Japan JAXA 7 December 2010 (Venus flyby) orbiter in Venus orbit; payload may be functional failed to attain Venus orbit in 2010;
orbit insertion on 7 December 2015
[87][88]
IKAROS Japan JAXA 8 December 2010[89] flyby[90] success solar sail technology development / interplanetary space exploration [91]
Shin'en
(UNITEC-1)
Japan UNISEC December 2010? flyby[92] failure contact lost shortly after launch [93][94]

Proposed

Spacecraft Organization Date Type Status Notes Image Ref
Venus In-Situ Explorer United States NASA 2022? in-situ explorer proposed [95]
Venera-D Russia RKA 2024 orbiter proposed [96][97]

Earth flybys

Main article: List of Earth flybys

These are probes that incidentally performed Earth flybys during missions to other bodies, often as part of gravity-assist orbital manoeuvres.

Spacecraft Organization Date Type Closest Approach Status Notes Image Ref
Giotto
(first pass)
ESA 2 July 1990 flyby 22,730 km success first Earth flyby, en route to Comet Grigg–Skjellerup [98]
Galileo
(first pass)
United States NASA 8 December 1990 flyby 301 km success gravity assist en route to Jupiter; minimum distance 960 km [99]
Sakigake
(first pass)
Japan ISAS 8 January 1992 flyby 88,790 km success previously visited Halley's comet [100]
Suisei Japan ISAS 20 August 1992 flyby failure failure previously visited Halley's comet; hydrazine depleted, further planned comet flybys abandoned [101]
Galileo
(second pass)
United States NASA 8 December 1992 flyby success gravity assist en route to Jupiter; minimum distance 305 km [82]
Sakigake
(second and third passes)
Japan ISAS 14 June 1993 flyby [102]
28 October 1994 flyby out of fuel; telemetry contact lost November 1995
NEAR Shoemaker United States NASA 23 January 1998 flyby 540 km success gravity assist en route to Eros [103]
Nozomi
(first pass)
Japan ISAS 20 December 1998 flyby 1000 km partial success gravity assist on planned mission to Mars; valve malfunction during flyby required extra burn, which later forced alternate trajectory plan [104]
Giotto
(second pass)
ESA 1 July 1999 flyby failure n/a already defunct [98]
Cassini United States NASA/
ESA/
Italy ASI
August, 1999 flyby success gravity assist en route to Saturn [105]
Stardust
(first pass)
United States NASA 15 January 2001 flyby 6000 km success gravity assist en route to comet 81P/Wild [106]
Nozomi
(second pass)
Japan ISAS December, 2002 flyby 11,000 km success gravity assist en route to Mars [104]
Nozomi
(third pass)
Japan ISAS 19 June 2003 flyby 1000 km success gravity assist en route to Mars [104]
Hayabusa Japan ISAS 19 May 2004 flyby 20,000 km success en route to Itokawa [107]
Rosetta
(first pass)
ESA 4 March 2005 flyby 1950 km success gravity assist en route to asteroid and comet encounters [108]
MESSENGER United States NASA 2 August 2005 flyby 2348 km success gravity assist en route to Mercury [109]
Stardust
(second pass)
United States NASA 15 January 2006 flyby success drop-off of sample return capsule [106]
Rosetta
(second pass)
ESA 13 November 2007 flyby success gravity assist en route to asteroid and comet encounters
Deep Impact (redesignated EPOXI) (first pass) United States NASA 31 December 2007[110] flyby 15,567 success previously visited Comet 9P/Tempel; gravity assist en route to encounter with Comet 103P/Hartley [111]
Deep Impact (redesignated EPOXI) (second pass) United States NASA December 2008[110][112] flyby 43,450 km success gravity assist [111]
Stardust
(third pass)
United States NASA 14 January 2009 flyby 9200 km success[113] mission extension to Comet 9P/Tempel; minimum distance 9200 km [106]
Rosetta
(third pass)
ESA 13 November 2009 flyby success gravity assist en route to asteroid and comet encounters
Deep Impact (redesignated EPOXI) (third pass) United States NASA June 2009[110] distant flyby success [111]
Deep Impact (redesignated EPOXI) (fourth pass) United States NASA December 2009[110][112] distant flyby success [111]
Deep Impact (redesignated EPOXI) (fifth pass) United States NASA June 2010[110] flyby 36,900 km success [111]
Juno United States NASA 9 October 2013 flyby 559 km success gravity assist en route to Jupiter [114]
Hayabusa 2 Japan JAXA 3 December 2015 flyby en route gravity assist en route to Asteroid 162173 Ryugu [115]
PROCYON Japan University of Tokyo/JAXA 3 December 2015[116] flyby en route was en route to Asteroid 2000 DP107 but mission abandoned[117]
Shin'en 2 Japan Kyutech 4 December 2015[118] flyby en route [119]

Lunar probes

See List of lunar probes

1958

Spacecraft Organization Date Type Status Notes Image Ref
Pioneer 0 United States DOD 17 August 1958 orbiter failure first attempted launch beyond Earth orbit; launch vehicle failure; maximum altitude 16 km
Luna E-1 No.1 Soviet Union USSR 23 September 1958 impactor failure launch vehicle failure
Pioneer 1 United States NASA/
DOD
11 October 1958 orbiter failure second stage premature shutdown; maximum altitude 113,800 km; some data returned
Luna E-1 No.2 Soviet Union USSR 12 October 1958 impactor failure launch vehicle failure
Pioneer 2 United States NASA/
STL
8 November 1958 orbiter failure third stage failure; maximum altitude 1,550 km; some data returned
Luna E-1 No.3 Soviet Union USSR 4 December 1958 impactor failure launch vehicle failure
Pioneer 3 United States NASA/
DOD
6 December 1958 flyby failure fuel depletion; maximum altitude 102,360 km; some data returned

1959

Spacecraft Organization Date Type Status Notes Image Ref
Luna 1 Soviet Union USSR 4 January 1959 flyby partial success first spacecraft in the vicinity of the Moon (flew within 5,995 km, but probably an intended impactor)
Luna E-1A No.1 Soviet Union USSR 18 June 1959 impactor failure failed to reach Earth orbit
Pioneer 4 United States NASA/
DOD
4 March 1959 flyby partial success achieved distant flyby; first US probe to enter solar orbit
Luna 2 Soviet Union USSR 14 September 1959 impactor success first impact on Moon
Pioneer P-1 United States NASA 24 September 1959? orbiter? failure designation sometimes given to a failed launch or launchpad explosion during testing; conflicting information between sources
Luna 3 Soviet Union USSR 6 October 1959 flyby success first images from the lunar farside
Pioneer P-3 United States NASA 26 November 1959 orbiter failure disintegrated shortly after launch

1960

Spacecraft Organization Date Type Status Notes Image Ref
Luna 1960A Soviet Union USSR 15 April 1960 flyby failure failed to attain correct trajectory
Luna 1960B Soviet Union USSR 16 April 1960 flyby failure launch vehicle failure
Pioneer P-30 United States NASA 25 September 1960 orbiter failure second stage failure; failed to reach Earth orbit
Pioneer P-31 United States NASA 15 December 1960 orbiter failure first stage failure

1962–1963

Spacecraft Organization Date Type Status Notes Image Ref
Ranger 3 United States NASA 28 January 1962 impactor failure missed target
Ranger 4 United States NASA 26 April 1962 impactor failure hit the lunar farside; no data returned
Ranger 5 United States NASA 21 October 1962 impactor failure power failure, missed target
Sputnik 25 Soviet Union USSR 5 January 1963 lander failure failed to escape Earth orbit
Luna 1963B Soviet Union USSR 2 February 1963 lander? failure failed to reach Earth orbit
Luna 4 Soviet Union USSR 5 April 1963 lander? failure missed target, became Earth satellite

1964

Spacecraft Organization Date Type Status Notes Image Ref
Ranger 6 United States NASA 2 February 1964 impactor partial success impacted, but no pictures returned due to power failure
Luna 1964A Soviet Union USSR 21 March 1964 lander failure failed to reach Earth orbit
Luna 1964B Soviet Union USSR 20 April 1964 lander failure failed to reach Earth orbit
Ranger 7 United States NASA 31 July 1964 impactor success returned pictures up until impact

1965

Spacecraft Organization Date Type Status Notes Image Ref
Ranger 8 United States NASA 20 February 1965 impactor success returned pictures up until impact
Cosmos 60 Soviet Union USSR 12 March 1965 lander failure failed to leave Earth orbit
Ranger 9 United States NASA 24 March 1965 impactor success TV broadcast of live pictures up until impact
Luna 1965A Soviet Union USSR 10 April 1965 lander? failure failed to reach Earth orbit?
Luna 5 Soviet Union USSR 12 May 1965 lander failure crashed into Moon
Luna 6 Soviet Union USSR 8 June 1965 lander failure missed Moon
Zond 3 Soviet Union USSR 20 July 1965 flyby success possibly originally intended as a Mars probe, but target changed after launch window missed
Luna 7 Soviet Union USSR 7 October 1965 lander failure crashed into Moon
Luna 8 Soviet Union USSR 6 December 1965 lander failure crashed into Moon

1966

Spacecraft Organization Date Type Status Notes Image Ref
Luna 9 Soviet Union USSR 3 February 1966 
6 February 1966
lander success first soft landing; first images from the surface
Cosmos 111 Soviet Union USSR 1 March 1966 orbiter failure failed to escape Earth orbit
Luna 10 Soviet Union USSR 3 April 1966 
30 May 1966
orbiter success first artificial satellite of the moon
Luna 1966A Soviet Union USSR 30 April 1966 orbiter? failure failed to reach Earth orbit
Surveyor 1 United States NASA 2 June 1966 lander success first US soft landing; Surveyor program performed various tests in support of forthcoming manned landings
Explorer 33 United States NASA 1 July 1966
15 September 1971
orbiter partial success studied interplanetary plasma, cosmic rays, magnetic fields and solar X rays; failed to attain lunar orbit as intended, but achieved mission objectives from Earth orbit
Lunar Orbiter 1 United States NASA 14 August 1966
29 October 1966
orbiter success photographic mapping of lunar surface; intentionally impacted after completion of mission
Luna 11 Soviet Union USSR 28 August 1966
1 October 1966
orbiter success gamma-ray and X-ray-based observations of Moon's composition; gravity, radiation and meteorite studies
Surveyor 2 United States NASA 23 September 1966 lander failure crashed into Moon
Luna 12 Soviet Union USSR 25 October 1966
19 January 1967
orbiter success lunar surface photography
Lunar Orbiter 2 United States NASA 10 November 1966
11 October 1967
orbiter success photographic mapping of lunar surface; intentionally impacted after completion of mission
Luna 13 Soviet Union USSR 24 December 1966 lander success TV pictures of lunar landscape; soil measurements

1967

Spacecraft Organization Date Type Status Notes Image Ref
Lunar Orbiter 3 United States NASA 8 February 1967
9 October 1967
orbiter success photographic mapping of lunar surface; intentionally impacted after completion of mission
Surveyor 3 United States NASA 20 April 1967
4 May 1967
lander success various studies, primarily in support of forthcoming manned landings
Lunar Orbiter 4 United States NASA MayOctober 1967 orbiter success lunar photographic survey
Explorer 35 United States NASA July 1967 –
24 June 1973
orbiter success studies of interplanetary plasma, magnetic fields, energetic particles and solar X rays
Surveyor 4 United States NASA 17 July 1967 lander failure crashed into Moon
Lunar Orbiter 5 United States NASA 5 August 1967
31 January 1968
orbiter success lunar photographic survey; intentionally impacted after completion of mission
Surveyor 5 United States NASA 11 September 1967
17 December 1967
lander success various studies, primarily in support of forthcoming manned landings
Zond 1967A Soviet Union USSR 28 September 1967 failure lunar capsule test flight; launch failure
Surveyor 6 United States NASA 10 November 1967
14 December 1967
lander success various studies, primarily in support of forthcoming manned landings
Zond 1967B Soviet Union USSR 22 November 1967 failure lunar capsule test flight; launch failure

1968

Spacecraft Organization Date Type Status Notes Image Ref
Surveyor 7 United States NASA 10 January 1968
21 February 1968
lander success various studies, primarily in support of forthcoming manned landings; fifth and final Surveyor mission to achieve soft landing
Luna 1968A Soviet Union USSR 7 February 1968 orbiter? failure failed to reach Earth orbit
Zond 4 Soviet Union USSR 2 March 1968 (launch) lunar programme flight test, directed away from Moon, either intentionally or unintentionally
Luna 14 Soviet Union USSR 10 April 1968 ? orbiter success tests of radio communications technologies; lunar mascon studies
Zond 1968A Soviet Union USSR 23 April 1968 flyby? failure launch failure
Zond 5 Soviet Union USSR 18 September 1968 flyby success bioscience experiments; returned to soft landing on Earth
Zond 6 Soviet Union USSR 14 November 1968 flyby success cosmic-ray, micrometeoroid and bioscience studies; returned to soft landing on Earth

1969

Spacecraft Organization Date Type Status Notes Image Ref
Zond 1969A Soviet Union USSR 20 January 1969 flyby failure launch aborted
Luna 1969A Soviet Union USSR 19 February 1969 rover failure launch vehicle failure
Zond L1S-1 Soviet Union USSR 21 February 1969 orbiter failure launch vehicle failure
Luna 1969B Soviet Union USSR 15 April 1969 sample return? failure launch failure
Luna 1969C Soviet Union USSR 14 June 1969 sample return failure launch failure
Zond L1S-2 Soviet Union USSR 3 July 1969 orbiter failure launch failure
Luna 15 Soviet Union USSR 21 July 1969 sample return? failure? completed 52 lunar orbits then crash-landed
Zond 7 Soviet Union USSR 11 August 1969 flyby success returned to soft landing on Earth
Cosmos 300 Soviet Union USSR 23 September 1969 sample return failure failed to escape Earth orbit
Cosmos 305 Soviet Union USSR 22 October 1969 sample return failure failed to escape Earth orbit

1970

Spacecraft Organization Date Type Status Notes Image Ref
Luna 1970A Soviet Union USSR 6 February 1970 sample return? failure launch vehicle failure
Luna 1970B Soviet Union USSR 19 February 1970 orbiter? failure launch vehicle failure
Luna 16 Soviet Union USSR 20 September 1970 sample return success first robotic sample return
Zond 8 Soviet Union USSR 24 October 1970 flyby success returned to soft landing on Earth
Luna 17 Soviet Union USSR 17 November 1970
4 October 1971
lander success deployed rover
   Lunokhod 1 rover success first robotic rover; travelled over 10 km

1971–1983

Spacecraft Organization Date Type Status Notes Image Ref
Luna 18 Soviet Union USSR 11 September 1971 lander/sample return? failure crashed into Moon
Luna 19 Soviet Union USSR 3 October 1971
October 1972
orbiter success
Luna 20 Soviet Union USSR 21 February 1972 sample return success second successful robotic sample return
Soyuz L3 Soviet Union USSR 23 November 1972 orbiter failure launch failure
Luna 21 Soviet Union USSR 15 January 1973
May 1973?
lander success deployed rover
   Lunokhod 2 rover success second robotic rover; travelled 37 km
Explorer 49 United States NASA 15 June 1973
June 1975
orbiter success radio astronomy observations; last US lunar mission until 1994
Mariner 10 United States NASA November 1973 flyby success en route to Venus and Mercury [120]
Luna 22 Soviet Union USSR 2 June 1974
November 1974
orbiter success
Luna 23 Soviet Union USSR 6 November 1974 sample return failure damaged on landing, sample return failed
Luna 1975A Soviet Union USSR 16 October 1975 sample return failure failed to reach Earth orbit
Luna 24 Soviet Union USSR 18 August 1976 sample return success third and final successful sample return in Luna programme
ICE (formerly ISEE3) United States NASA 22 December 1983 flyby success gravity assist en route to comet flybys

1990–1999

Spacecraft Organization Date Type Status Notes Image Ref
Hiten Japan ISAS March 1990 October 1991 flyby (approached 10 times) success in Moon-crossing Earth orbit from January 1990, later transferred to lunar orbit after failure of Hagoromo; intentionally impacted on Moon at end of mission; first Japanese probe to enter lunar orbit
February 1992 April 1993 orbiter success
   Hagoromo Japan ISAS March 1990 orbiter failure released by Hiten into lunar orbit, but transmitter failed and orbit never confirmed
GEOTAIL Japan ISAS / United StatesNASA September 1992 November 1994 flyby (approached 14 times) success gravity assist en route magnetotail around L2 / finally deployed into high Earth orbit
Clementine United States BMDO/
NASA
February June 1994 orbiter partial success lunar and Earth observations and component testing; planned Geographos flyby failed
HGS-1 Hughes Global Services May/June 1998 errant communications satellite, flew within 6,200 kilometers of Moon during orbit correction manoeuvres
Lunar Prospector United States NASA January 1998
July 1999
orbiter success lunar surface mapping; intentionally impacted into polar crater at end of mission to test for liberation of water vapour (not detected)
Nozomi Japan ISAS 24 September 1998 flyby success gravity assists on planned mission to Mars
18 December 1998 flyby success

2000–2009

Spacecraft Organization Date Type Status Notes Image Ref
SMART-1 ESA 13 November 2004
3 September 2006
orbiter success technology testbed and lunar geological studies; intentionally impacted at end of mission; first European probe to orbit the Moon
SELENE
(Kaguya)
Japan JAXA 3 October 2007 10 June 2009 orbiter success mineralogical, geographical, magnetic and gravitational observations
Okina
(Relay Star)
9 October 2007 12 February 2009 Kaguya subsatellite success relay for Kaguya's Far Side operations
Ouna
(VRAD)
12 October 2007 29 June 2009 Kaguya subsatellite success (still in orbit) Very Long Baseline Interferometry
Chang'e 1 China CNSA 5 November 2007 1 March 2009 orbiter success 3D lunar mapping and geological observations; first Chinese probe to orbit a body besides Earth
1 March 2009 impactor success collect data in preparation for future soft landing.
Chandrayaan-1 India ISRO 8 November 2008 29 August 2009 orbiter partial success high resolution three-dimensional mapping, search water in polar region (first detected water, published Science paper jointly with NASA) and spectral analysis of the Moon's surface and inner compositions
Moon Impact Probe (MIP) 14 November 2008 impactor success test and demonstrate targeting technologies in anticipation of future soft landings, scientific observation of the Moon from close range
Lunar Reconnaissance Orbiter United States NASA 23 June 2009 orbiter in orbit survey of lunar resources and identification of possible landing sites
   LCROSS 9 October 2009 impactor success analyzed upper-stage impact plume for traces of water liberated from the Moon's surface

2010–present

Spacecraft Organization Date Type Status Notes Image Ref
Chang'e 2 China CNSA 1 October 2010 27 August 2011 orbiter success capture high resolution images of soft landing site for Chang'e 3, measure and analyze content of the surface
ARTEMIS P1 United States NASA 2 July 2011 – orbiter in orbit to study the effect of the solar wind on the lunar surface
ARTEMIS P2 United States NASA 17 July 2011 – orbiter in orbit to study the effect of the solar wind on the lunar surface
GRAIL A United States NASA 31 December 2011 – 17 December 2012 orbiter success mapped the Moon's gravitational field; intentionally impacted at end of mission
GRAIL B United States NASA 1 January 2012 – 12 December 2012 orbiter success mapped the Moon's gravitational field; intentionally impacted at end of mission
LADEE United States NASA 6 September 2013 – 18 April 2014 orbiter success study the lunar exosphere and dust; intentionally impacted at end of mission
Chang'e 3 China CNSA 1 December 2013 orbiter in progress soft lander; successfully landed on Moon with Yutu rover 14 December 2013.
lander/rover
Chang'e 5-T1 China CNSA 23 October 2014 orbiter in progress Engineering test article for reentry from lunar trajectory, carries secondary private payload 4M

Mars probes

1960s

Spacecraft Organization Date Type Status Notes Image Ref
Mars 1960A Soviet Union USSR 10 October 1960 flyby failure failed to reach Earth orbit [121]
Mars 1960B Soviet Union USSR 14 October 1960 flyby failure failed to reach Earth orbit [122]
Mars 1962A Soviet Union USSR 24 October 1962 flyby failure exploded in or en route to Earth orbit [123]
Mars 1962B Soviet Union USSR 11 November 1962 (launch) lander failure broke up during transfer to Mars trajectory [124]
Mars 1 Soviet Union USSR 19 June 1963 flyby failure contact lost en route; flew within approximately 193,000 km of Mars [125]
Mariner 3 United States NASA 5 November 1964 flyby failure protective shield failed to eject, preventing craft from attaining correct trajectory [126]
Zond 2 Soviet Union USSR 6 August 1965 flyby failure contact lost en route; flew within 1,500 km of Mars [127]
Mariner 4 United States NASA 15 July 1965 flyby success first close-up images of Mars [128]
Mariner 6 United States NASA 31 July 1969 flyby success [129]
Mariner 7 United States NASA 5 August 1969 flyby success [130]
Mars 1969A Soviet Union USSR 27 March 1969 orbiter failure launch failure [131]
Mars 1969B Soviet Union USSR 2 April 1969 orbiter failure launch failure [132]

1970s and 1980s

Spacecraft Organization Date Type Status Notes Image Ref
Mariner 8 United States NASA 9 May 1971 orbiter failure launch vehicle failure [133]
Mariner 9 United States NASA 14 November 1971 orbiter success first spacecraft to orbit another planet [134]
Mars 2 Soviet Union USSR November 1971
August 1972
orbiter success first Russian spacecraft to orbit another planet [135]
   Mars 2 Lander Soviet Union USSR 27 November 1971 lander and short range rover failure crashed; first manmade object to reach surface of Mars [136]
Mars 3 Soviet Union USSR December 1971
August 1972
orbiter partial success attained a different orbit than intended due to insufficient fuel [137]
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 [138]
Cosmos 419 Soviet Union USSR 10 May 1971 orbiter failure failed to escape Earth orbit [139]
Mars 4 Soviet Union USSR 10 February 1974 orbiter failure orbit insertion failed, became flyby [140]
Mars 5 Soviet Union USSR February 1974 orbiter success [141]
Mars 6 Soviet Union USSR 12 March 1974 flyby success [142]
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 [143]
Mars 7 Lander Soviet Union USSR 9 March 1974 lander failure missed Mars
Viking 1 Orbiter United States NASA June 1976
August 1980
orbiter success [144]
Viking 1 Lander United States NASA 20 July 1976
13 November 1982
lander success first images from surface [145]
Viking 2 Orbiter United States NASA August 1976
July 1978
orbiter success [146]
Viking 2 Lander United States NASA 3 September 1976
11 April 1980
lander success [147]
Phobos 1 Soviet Union USSR 7 July 1988 (launch) orbiter failure contact lost en route to Mars [148]
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 [149]

1990s

Spacecraft Organization Date Type Status Notes Image Ref
Mars Observer United States NASA 25 September 1992 (launch) orbiter failure contact lost shortly before Mars orbit insertion [150]
Mars 96 Russia RKA 16 November 1996 (launch) orbiter failure failed to escape Earth orbit [151]
lander [152]
lander [153]
penetrator [154]
penetrator [155]
Mars Pathfinder United States NASA 4 July 1997
27 September 1997
lander success [156]
    Sojourner United States NASA 6 July 1997
27 September 1997
rover success first Mars rover [157]
Mars Global Surveyor United States NASA 12 September 1997
2 November 2006
orbiter success [158]
Mars Climate Orbiter United States NASA 23 September 1999 orbiter failure Mars orbit insertion failed due to navigation error [159]
Mars Polar Lander United States NASA 3 December 1999 lander failure contact lost just prior to entering Martian atmosphere [160]
Deep Space 2 "Amundsen" United States NASA 3 December 1999 penetrator [161]
Deep Space 2 "Scott" United States NASA 3 December 1999 penetrator

2000 – present

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 [162]
Nozomi Japan ISAS 14 December 2003 orbiter failure failed to attain Mars orbit, became flyby [104]
Mars Express ESA 25 December 2003 orbiter success surface imaging and mapping; first European probe in Martian orbit [163]
   Beagle 2 UK 25 December 2003 lander failure Deployed by the Mars Express; lost for 11 years and imaged by NASA's MRO in 2015[164] [165]
MER-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 [166]
MER-B "Opportunity" United States NASA 25 January 2004 – rover success [167]
Mars Reconnaissance Orbiter United States NASA 10 March 2006 – orbiter success surface imaging and surveying [168]
Rosetta ESA 25 February 2007 flyby success gravity assist en route to asteroid and comet encounters [108]
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 [169]
Dawn United States NASA 17 February 2009 flyby success gravity assist en route to Vesta and Ceres [170]
Yinghuo-1 China CNSA 8 November 2011 (launch) orbiter failure failed to escape Earth orbit; launched with Fobos-Grunt Phobos lander
MSL Curiosity United States NASA 6 August 2012 – rover in operation investigation of past and present habitability, climate and geology [171]
Mars Orbiter Mission India ISRO 24 September 2014 – orbiter in operation technology development; will study atmosphere & conduct mineralogical mapping. [172][173]
MAVEN United States NASA 25 September 2014 – orbiter in operation will study Martian atmosphere [174]
ExoMars Trace Gas Orbiter (ExoMars 2016) ESA/
Russia RKA
19 October 2016 orbiter en route atmospheic gas analyzation, communication relay for surface probes [175]
    Schiaparelli EDM lander ESA/
Russia RKA
19 October 2016 lander en route landing test, meteorological observation

Proposed

Spacecraft Organization Date Type Status Notes Image Ref
InSight United States NASA 2018 lander planned Launch delayed from 2016 by instrument leak [176]
ExoMars rover ESA/
Russia RKA
2018 rover planned [177]
Mars 2020 United States NASA 2020 rover planned [178]
Mars Sample Return Mission United States NASA/
ESA
2024? orbiter, lander, rover, and sample return under study [179][180]

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 [148]
   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 [149]
   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 [181]

Ceres probes

Spacecraft Organization Date Type Status Notes Image Ref
Dawn United States NASA March 6, 2015 orbiter in orbit first spacecraft to orbit two different celestial bodies; previously visited Vesta [170]

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 [82]
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 [82]
1620 Geographos Clementine United States BMDO/
NASA
1994 flyby failure flyby cancelled due to equipment malfunction [182]
253 Mathilde NEAR
Shoemaker
United States NASA 27 June 1997 flyby success flew within 1200 km of 253 Mathilde en route to 433 Eros [103]
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) [103]
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 [183]
2685 Masursky Cassini United States NASA/
ESA/
Italy ASI
23 January 2000 distant flyby success en route to Saturn [105]
433 Eros NEAR
Shoemaker
United States NASA February 2000
February 2001
orbiter, became lander success improvised landing by orbiter at end of mission [103]
5535 Annefrank Stardust United States NASA November 2, 2002 distant flyby success went on to visit comet 81P/Wild [106]
25143 Itokawa Hayabusa Japan ISAS 2005–07 sample return success landed on Itokawa in 2005 and returned to Earth in 2010 [184]
    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 [185]
2867 Šteins Rosetta ESA 5 September 2008 flyby success en route to comet 67P/Churyumov–Gerasimenko [108]
21 Lutetia Rosetta ESA 11 July 2010 flyby success en route to comet 67P/Churyumov–Gerasimenko [108]
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 [170]
4179 Toutatis Chang'e 2 China CNSA 13 December 2012 flyby success [186]
162173 Ryugu Hayabusa 2 Japan JAXA 2018 sample return en route to return Earth in 2020 [115]
    Minerva II-1A Japan JAXA 2018 hopper en route
    Minerva II-1B Japan JAXA 2018 hopper en route
    Minerva II-2 Japan JAXA 2018 hopper en route
    MASCOT Germany DLR/
France CNES
2018 mobile lander en route
2000 DP107 PROCYON Japan University of Tokyo/JAXA 12 May 2016[116] flyby failure mission abandoned after ion thruster failure [117]

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 [187]
Pioneer 11 United States NASA 4 December 1974 flyby success went on to visit Saturn [188]
Voyager 1 United States NASA 5 March 1979 flyby success went on to visit Saturn [189]
Voyager 2 United States NASA 9 July 1979 flyby success went on to visit Saturn, Uranus and Neptune [190]
Ulysses
(first pass)
ESA/
United States NASA
February 1992 flyby success gravity assist en route to inclined heliocentric orbit for solar polar observations [191]
Galileo Orbiter United States NASA/
Germany DLR
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 [192]
   Galileo Probe United States NASA/
Germany DLR
7 December 1995 atmospheric probe success first probe to enter Jupiter's atmosphere [193]
Cassini United States NASA/
ESA/
Italy ASI
December 2000 flyby success gravity assist en route to Saturn [105]
Ulysses
(second pass)
ESA/
United States NASA
2003–04 distant flyby success [191]
New Horizons United States NASA 28 February 2007 flyby success gravity assist en route to Pluto [185]
Juno United States NASA 5 August 2011 (launch) orbiter en route [114]
JUICE ESA 2022 (launch) orbiter planned planned to eventually enter orbit around Ganymede to become the first probe to orbit a natural satellite of another planet
Europa Clipper United States NASA 2020s orbiter under study planned to orbit Jupiter and fly by Europa multiple times [194]

Saturn probes

Main article: Exploration of Saturn
Spacecraft Organization Date Type Status Notes Image Ref
Pioneer 11 United States NASA 1 September 1979 flyby success previously visited Jupiter [188]
Voyager 1 United States NASA 12 November 1980 flyby success previously visited Jupiter [189]
Voyager 2 United States NASA 5 August 1981 flyby success previously visited Jupiter, went on to visit Uranus and Neptune [190]
Cassini United States NASA/
ESA/
Italy ASI
1 July 2004 – orbiter success also performed flybys of a number of Saturn's moons, and deployed the Huygens Titan lander; first spacecraft to orbit Saturn [105]

Titan probes

Spacecraft Organization Date Type Status Notes Image Ref
Huygens ESA 14 January 2005 atmospheric probe, lander success deployed by Cassini; first probe to land on a satellite of another planet [195]
Titan Saturn System Mission ESA/
United States NASA
October 2029 orbiter, montgolfière, lander under study

Uranus probes

Main article: Exploration of Uranus
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 [190]

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 [190]

Pluto probes

Spacecraft Organization Date Type Status Notes Image Ref
New Horizons United States NASA 14 July 2015 flyby success will flyby Kuiper belt object 2014 Mu69 on January 1, 2019 when it is 43.4 AU from the Sun. [185]

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 [196]
1P/Halley Vega 1 Soviet Union SAS 6 March 1986 flyby success minimum distance 8,890 km; previously visited Venus [76]
1P/Halley Suisei Japan ISAS 8 March 1986 flyby success 151,000 km [197]
1P/Halley Vega 2 Soviet Union SAS 9 March 1986 flyby success minimum distance 8,890 km; previously visited Venus [79]
1P/Halley Sakigake Japan ISAS March 1986 distant flyby partial success minimum distance 6.99 million km [100]
1P/Halley Giotto ESA 14 March 1986 flyby success minimum distance 596 km; went on to visit comet 26P/Grigg-Skjellerup [98]
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 [196]
26P/Grigg-Skjellerup Giotto ESA 10 July 1992 flyby success previously visited Halley's Comet [98]
45P/
Honda-Mrkos-Pajdusakova
Sakigake Japan ISAS 1996 flyby failure contact lost; previously visited Halley's Comet [102]
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 [198]
21P/Giacobini-Zinner Suisei Japan ISAS 1998 flyby failure
19P/Borrelly Deep Space 1 United States NASA 22 September 2001 flyby success previously visited asteroid 9969 Braille [183]
2P/Encke CONTOUR United States NASA 2003 flyby failure contact lost shortly after launch [199]
81P/Wild Stardust United States NASA 2 January 2004 flyby, sample return success sample returned January 2006; also visited asteroid 5535 Annefrank [106]
9P/Tempel Deep Impact United States NASA July 2005 flyby success [200]
    Impactor United States NASA 4 July 2005 impactor success
73P/
Schwassmann-Wachmann
CONTOUR United States NASA 2006 flyby failure contact lost shortly after launch [199]
6P/d'Arrest CONTOUR United States NASA 2008 flyby failure contact lost shortly after launch [199]
103P/Hartley Deep Impact (redesignated EPOXI) United States NASA 4 November 2010 flyby success mission extension (target changed from comet Boethin) [111]
9P/Tempel Stardust (redesignated NExT) United States NASA 14 February 2011 flyby success mission extension [106]
67P/Churyumov–
Gerasimenko
Rosetta ESA 2014–15 orbiter success flybys of asteroids 2867 Šteins and 21 Lutetia completed [108]
    Philae ESA 2014 lander success [201]

Probes leaving the Solar System

Spacecraft Organization Notes Image Ref
Pioneer 10 United States NASA Left Jupiter in December 1973. Mission ended March 1997. Last contact January 23, 2003. Craft now presumed dead; no further contact attempts planned. [202]
Pioneer 11 United States NASA 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. [188]
Voyager 1 United States NASA Left Saturn in November 1980. Still in regular contact and transmitting scientific data (as of December 2014). Contact hoped to be maintained until at least 2020. [189]
Voyager 2 United States NASA Left Neptune in August 1989. Still in regular contact and transmitting scientific data (as of December 2014). Contact hoped to be maintained until at least 2020. [190]
New Horizons United States NASA Left Pluto July 14, 2015; Pluto mission to last until early 2016, proposed Kuiper Belt missions to begin in 2018/2019. [185]

Other probes to leave Earth orbit

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

Spacecraft Organization Date Location Status Notes Image Ref
WMAP United States NASA 30 June 2001 (launch) – to October 2010 (end)[203] Sun-Earth L2 point success cosmic background radiation observations; sent to graveyard orbit after 9 years of use.[203] [204]
Spitzer Space Telescope United States NASA 25 August 2003 (launch) – still active (as of December 2010) Earth-trailing heliocentric orbit success infrared astronomy [205]
Chang'e 2 China CNSA 25 August 2011(arrive) to 15 April 2012(end) Sun-Earth L2 point success Left the point on 15 April 2012, then flew by asteroid 4179 Toutatis.[206] [207]
Kepler United States NASA 6 March 2009 (launch) Earth-trailing heliocentric orbit operational search for extrasolar planets [208]
Herschel Space Observatory ESA 14 May 2009 (launch) Lissajous orbit around Sun-Earth L2 point completed study of formation and evolution of galaxies and stars [209]
Planck ESA 14 May 2009 (launch) Lissajous orbit around Sun-Earth L2 point completed (2009-2013) cosmic microwave background observations [210]
IKAROS Japan JAXA 20 May 2010 (launch) Earth-Venus transfer heliocentric orbit operational solar sail technology development / interplanetary space exploration [91]
Shin'en
(UNITEC-1)
Japan UNISEC failure technology development; contact lost shortly after launch[94] [93]
Gaia 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 [211]
LISA Pathfinder ESA 3 December 2015 (launch)[212] Halo orbit around Sun-Earth L1 point success test mission for proposed LISA gravitational wave observatory [213]
James Webb Space Telescope United States NASA
ESA
Canada CSA
2018 (launch) Sun-Earth L2 point planned infrared astronomy [214]
Euclid ESA 2020 (launch)[215] Halo orbit around Sun-Earth L2 point planned measure the rate of expansion of the Universe through time to better understand dark energy and dark matter [216]

Cancelled probes and missions

Target Spacecraft Organization Date Type Status Notes Image Ref
Mercury BepiColombo Mercury Surface Element ESA lander cancelled
Moon LUNAR-A Japan JAXA orbiter, penetrators cancelled originally scheduled for 2004, cancelled 2007 [217]
Mars Mars Surveyor 2001 Lander United States NASA 2001 lander cancelled [218]
Mars Beagle 2: Evolution 2004 lander cancelled
Mars NetLander France CNES/
ESA
lander cancelled [219]
Mars Mars Telecommunications Orbiter United States NASA 2010 orbiter cancelled [220]
Phobos Aladdin United States NASA sample return not selected [221]
Europa Europa Orbiter United States NASA orbiter cancelled [222]
Europa Jupiter Icy Moons Orbiter United States NASA orbiter cancelled [223]
Ganymede Jupiter Icy Moons Orbiter United States NASA orbiter cancelled [223]
Callisto Jupiter Icy Moons Orbiter United States NASA orbiter cancelled [223]
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 [224]
4660 Nereus Hayabusa Japan ISAS sample return cancelled rerouted to 25143 Itokawa [107]
3840 Mimistrobell Rosetta ESA 2006 flyby cancelled rerouted [108]
4979 Otawara Rosetta ESA 2006 flyby cancelled rerouted [108]
4660 Nereus Near Earth Asteroid Prospector SpaceDev sample return cancelled [225]
46P/Wirtanen Rosetta ESA 2011 orbiter cancelled rerouted to 67P/Churyumov–Gerasimenko [108]

See also

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