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.

KeyEdit

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.[1] 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. Note that 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
  • 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 probesEdit

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:

1960–1969Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Pioneer 5United States NASA/
No image.svg DOD
March–April 1960orbitersuccessmeasured magnetic field phenomena, solar flare particles, and ionization in the interplanetary region 1960-001A
Pioneer 6(A)United States NASADecember 1965 – still contactable in 2000orbitersuccessnetwork of solar-orbiting "space weather" monitors, observing solar wind, cosmic rays, and magnetic fields 1965-105A
Pioneer 7(B)United States NASAAugust 1966 – still contactable in 1995orbitersuccess1966-075A
Pioneer 8(C)United States NASADecember 1967 – still contactable in 2001orbitersuccess1967-123A
Pioneer 9(D)United States NASANovember 1968 – May 1983orbitersuccess1968-100A
Pioneer-EUnited States NASA27 August 1969orbiterfailureintended as part of the Pioneer 6–9 network; failed to reach orbit PIONE

1974–1997Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Helios AWest Germany DFVLR/
United States NASA
November 1974 – 1982orbitersuccessobservations of solar wind, magnetic and electric fields, cosmic rays and cosmic dust between Earth and Sun 1974-097A
Helios BWest Germany DFVLR/
United States NASA
January 1976 – 1985?orbitersuccess1976-003A
ISEE-3United States NASA1978–1982orbitersuccessobserved 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
1994orbitersuccesssouth polar observations 1990-090B
1995north polar observations
WINDUnited States NASANovember 1994 – still active as of February 2020[2]orbitersuccesssolar wind measurements 1994-071A
SOHOEurope ESA/
United States NASA
May 1996 – extended to December 2020[3]orbitersuccessinvestigation of Sun's core, corona, and solar wind; comet discoveries 1995-065A
ACEUnited States NASAAugust 1997 – projected until 2024[4]orbitersuccesssolar wind observations 1997-045A

2000–presentEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Ulysses
(second pass)
Europe ESA/
United States NASA
2000orbitersuccesssouth polar observations 1990-090B
2001north polar observations
GenesisUnited States NASA2001–2004orbiter/
sample return
successsolar wind sample return; crash landed on return to Earth, much data salvaged 2001-034A
STEREO AUnited States NASADecember 2006 –
still active as of September 2021[5][6][7]
orbitersuccessstereoscopic imaging of coronal mass ejections and other solar phenomena 2006-047A
STEREO BUnited States NASADecember 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.[7][8]
orbitersuccess2006-047B
Ulysses
(third pass)
Europe ESA/
United States NASA
2007orbitersuccesssouth polar observations 1990-090B
2008partial successnorth polar observations; some data returned despite failing power and reduced transmission capacity
DSCOVRUnited States NOAAFebruary 2015 –orbitersuccesssolar wind and coronal mass ejection monitoring, as well as Earth climate monitoring 2015-007A [9]
Parker Solar ProbeUnited States NASANovember 2018 – December 2025orbiter/flyby
(approach 26 times)
en routeclose-range solar coronal study2018-065A [10]
Solar OrbiterEurope ESA10 February 2020 (launch)orbiteren routesolar and heliospheric physics2020-010A [11]

ProposedEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Aditya-L1India ISROJanuary 2022orbiterplannedto study solar corona[12][13]

Mercury probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Mariner 10United States NASA29 March 1974flybysuccessminimum distance 704 km 1973-085A
21 September 197448,069 km
16 March 1975327 km
MESSENGERUnited States NASA14 January 2008flybysuccessminimum distance 200 km 2004-030A
6 October 2008minimum distance 200 km
29 September 2009minimum distance 228 km
18 March 2011 –
30 April 2015
orbitersuccessfirst spacecraft to orbit Mercury; unavoidable impact on the surface at end of mission
BepiColombo
(Mercury Cruise System)
Europe ESA/
Japan JAXA
October 2021flybyen routeBEPICLMBO
June 2022en route
June 2023
September 2024
December 2024
January 2025
  Mercury
Planetary Orbiter
Europe ESA5 December 2025 (orbital insertion)
14 March 2026 (final MPO orbit)
orbiteren route (attached to Mercury Cruise System)
Mio
(Mercury
Magnetospheric Orbiter)
Japan JAXA5 December 2025 (orbital insertion)orbiteren route (attached to Mercury Cruise System)

Venus probesEdit

1961–1969Edit

Venus Probes (List) [1961–1965]
SpacecraftOrganizationDateTypeStatusNotesImageRef
Tyazhely SputnikSoviet Union (USSR)4 February 1961landerfailurefailed to escape from Earth orbit1961-002A
Venera 1Soviet Union (USSR)19 May 1961 –
20 May 1961
flybyfailurecontact lost 7 days after launch; first spacecraft to fly by another planet1961-003A
Mariner 1United States NASA22 July 1962flybyfailureguidance failure shortly after launchMARIN1
Sputnik 19Soviet Union (USSR)25 August 1962landerfailurefailed to escape Earth orbit1962-040A
Sputnik 20Soviet Union (USSR)1 September 1962landerfailurefailed to escape Earth orbit1962-043A
Sputnik 21Soviet Union (USSR)12 September 1962flybyfailurethird stage exploded1962-045A
Mariner 2United States NASA14 December 1962flybysuccessfirst successful Venus flyby; minimum distance 34,773 km 1962-041A
Cosmos 21Soviet Union (USSR)11 November 1963flyby?failurefailed to escape Earth orbit1963-044A
Venera 1964ASoviet Union (USSR)19 February 1964flybyfailurefailed to reach Earth orbit[1]
Venera 1964BSoviet Union (USSR)1 March 1964flybyfailurefailed to reach Earth orbit[1]
Cosmos 27Soviet Union (USSR)27 March 1964flybyfailurefailed to escape Earth orbit1964-014A
Zond 1Soviet Union (USSR)1964flyby and possible landerfailurecontact lost en route1964-016D
Cosmos 96Soviet Union (USSR)23 November 1965landerfailureexploded?1965-094A
Venera 1965ASoviet Union (USSR)26 November 1965flybyfailurelaunch vehicle failure?[1]
Venera 2Soviet Union (USSR)27 February 1966flybyfailureceased to operate en route1965-091A
Venera 3Soviet Union (USSR)1 March 1966landerfailurecontact lost before arrival; first spacecraft to impact on the surface of another planet1965-092A
Kosmos 167Soviet Union (USSR)17 June 1967landerfailurefailed to escape Earth orbit1967-063A
Venera 4Soviet Union (USSR)18 October 1967atmospheric probesuccesscontinued to transmit to an altitude of 25 km1967-058A
Mariner 5United States NASA19 October 1967flybysuccessminimum distance 5,000 km 1967-060A
Venera 5Soviet Union (USSR)16 May 1969atmospheric probesuccesstransmitted atmospheric data for 53 minutes, to an altitude of about 26 km1969-001A
Venera 6Soviet Union (USSR)17 May 1969atmospheric probesuccesstransmitted atmospheric data for 51 minutes, to an altitude of perhaps 10–12 km1969-002A

1970–1978Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Cosmos 359Soviet Union (USSR)22 August 1970lander?failurefailed to escape Earth orbit1970-065A
Venera 7Soviet Union (USSR)15 December 1970landersuccessfirst successful landing on another planet; signals returned from surface for 23 minutes1970-060A
Cosmos 482Soviet Union (USSR)31 March 1972lander?failurefailed to escape Earth orbit1972-023A
Venera 8Soviet Union (USSR)22 July 1972landersuccesssignals returned from surface for 50 minutes1972-021A
Mariner 10United States NASA5 February 1974flybysuccessminimum distance 5768 km, en route to Mercury; first use of gravity assist by an interplanetary spacecraft 1973-085A
Venera 9Soviet Union (USSR)1975orbitersuccessfirst spacecraft to orbit Venus; communications relay for lander; atmospheric and magnetic studies 1975-050A
22 October 1975landersuccessfirst images from the surface; operated on surface for 53 minutes1975-050D
Venera 10Soviet Union (USSR)1975orbitersuccesscommunications relay for lander; atmospheric and magnetic studies 1975-054A
23 October 1975landersuccesstransmitted from surface for 65 minutes1975-054D
Pioneer Venus OrbiterUnited States NASA4 December 1978 –
1992
orbitersuccessatmospheric and magnetic studies 1978-051A
Pioneer Venus MultiprobeUnited States NASA9 December 1978 
busprobe transportersuccessdeployed four atmospheric probes, then burnt up in Venusian atmosphere, continuing to transmit to 110 km altitude1978-078A
large probeatmospheric probesuccess1978-078D
north probeatmospheric probesuccess1978-078E
day probeatmospheric probesuccesssurvived impact and continued to transmit from surface for over an hour1978-078G
night probeatmospheric probesuccess1978-078F
Venera 12Soviet Union SAS
flight platform21 December 1978flybysuccessminimum distance 34,000 km; deployed lander and then acted as communications relay1978-086A
descent craft21 December 1978landerpartial successsoft landing; transmissions returned for 110 minutes; failure of some instruments1978-086C
Venera 11Soviet Union SASidentical to Venera 12
  flight platform25 December 1978flybysuccessminimum distance 34,000 km; deployed lander and then acted as communications relay1978-084A
descent craft25 December 1978landerpartial successsoft landing; transmissions returned for 95 minutes; failure of some instruments1978-084D

1982–1999Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Venera 13Soviet Union SAS
  bus1 March 1982flybysuccessdeployed lander and then acted as communications relay 1981-106A
descent craft1 March 1982landersuccesssurvived on surface for 127 minutes1981-106D
Venera 14Soviet Union SASidentical to Venera 13
bus5 March 1982flybysuccessdeployed lander and then acted as communications relay 1981-110A
descent craft5 March 1982landersuccesssurvived on surface for 57 minutes1981-110D
Venera 15Soviet Union SAS1983–1984orbitersuccessradar mapping1983-053A
Venera 16Soviet Union SAS1983–1984orbitersuccessradar mapping; identical to Venera 151983-054A
Vega 1Soviet Union SAS11 June 1985flybysuccesswent on to fly by Halley's comet 1984-125A
landerfailureinstruments deployed prematurely1984-125E
atmospheric balloonsuccessfloated at an altitude of about 54 km and transmitted for around 46 hours 1984-125F
Vega 2Soviet Union SAS15 June 1985flybysuccesswent on to fly by Halley's comet 1984-128A
landersuccesstransmitted from surface for 56 minutes1984-128E
atmospheric balloonsuccessfloated at an altitude of about 54 km and transmitted for around 46 hours 1984-128F
GalileoUnited States NASA10 February 1990flybysuccessgravity assist en route to Jupiter; minimum distance 16,000 km [14]
MagellanUnited States NASA10 August 1990 –
12 October 1994
orbitersuccessglobal radar mapping 1989-033B [15]
CassiniUnited States NASA/
Europe ESA/
Italy ASI
26 April 1998flybysuccessgravity assist en route to Saturn 1997-061A [16]
24 June 1999

2006–presentEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Venus ExpressEurope ESA11 April 2006 – 18 January 2015orbitersuccessatmospheric studies; planetary imaging; magnetic observations 2005-045A
MESSENGERUnited States NASA24 October 2006flybysuccessgravity assist only; minimum distance 2990 km 2004-030A
6 June 2007successminimum distance 300 km; en route to Mercury
Akatsuki
(PLANET-C)
Japan JAXA6 December 2010 (Venus flyby)orbiterfailurefailed orbital insertion in 2010; success in 2015
science mission ongoing since May 2016
2010-020D
7 December 2015 (orbital insertion) –orbitersuccess
IKAROSJapan JAXA8 December 2010flyby[17]successsolar sail technology development / interplanetary space exploration 2010-020E [18]
Shin'en
(UNITEC-1)
Japan UNISECDecember 2010?flyby[19]failurecontact lost shortly after launch2010-020F [20][21]
Parker Solar ProbeUnited States NASAOctober 2018 – November 2024flyby (approach 7 times)en routegravity assist en route to solar corona2018-065A [10]
BepiColombo
(first pass)
Europe ESA/
Japan JAXA
15 October 2020flybysuccessgravity assist en route to Mercury; minimum approach distance was about 10,720 km[22]BEPICLMBO
Solar OrbiterEurope ESA27 December 2020flybysuccessgravity assist en route to inclined heliocentric orbit for solar polar observations2020-010A [11]
August 2021en route
BepiColombo
(second pass)
Europe ESA/
Japan JAXA
August 2021flybyen routegravity assist en route to Mercury, during which it may study Venus' atmosphere and solar environmentBEPICLMBO
Solar OrbiterEurope ESASeptember 2022flybyen routegravity assist en route to inclined heliocentric orbit2020-010A [11]
Solar OrbiterEurope ESAFebruary 2025flybyen routegravity assist en route to inclined heliocentric orbit2020-010A [11]
December 2026en route

ProposedEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
JUICEEurope ESA2023flybyplannedgravity assist en route to Jupiter [23]
Shukrayaan-1India ISRO2025orbiter (+ balloon ?)planned[24][25][26][27]
Venera-DRussia RKA2029orbiter, landerproposed[28]
DragonflyUnited States NASA2027flybyplannedgravity assist en route to Titan[29]
Solar OrbiterEurope ESAMarch 2028flybyproposedmission extension2020-010A [11]
June 2029proposed
September 2030proposed
DAVINCI+United States NASA2028-2030atmospheric probeplanned [30]
VERITASUnited States NASA2028-2030orbiterplanned [30]
EnVisionEurope ESA2034orbiterplanned [31]
Venus In Situ ExplorerUnited States NASATBDlander or airplaneproposed [32]

Earth flybysEdit

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 probesEdit

See List of lunar probes

Mars probesEdit

1960–1969Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Mars 1M No.1Soviet Union USSR10 October 1960flybyfailurefailed to reach Earth orbitMARSNK1
Mars 1M No.2Soviet Union USSR14 October 1960flybyfailurefailed to reach Earth orbitMARSNK2
Mars 1962ASoviet Union USSR24 October 1962flybyfailureexploded in or en route to Earth orbit1962-057A
Mars 1962BSoviet Union USSR11 November 1962 (launch)landerfailurebroke up during transfer to Mars trajectory1962-062A
Mars 1Soviet Union USSR19 June 1963flybyfailurecontact lost en route; flew within approximately 193,000 km of Mars1962-061A
Mariner 3United States NASA5 November 1964flybyfailureprotective shield failed to eject, preventing craft from attaining correct trajectory 1964-073A
Mariner 4United States NASA15 July 1965flybysuccessfirst close-up images of Mars 1964-077A
Zond 2Soviet Union USSR6 August 1965flybyfailurecontact lost en route; flew within 1,500 km of Mars1964-078C
Mariner 6United States NASA31 July 1969flybysuccess 1969-014A
Mariner 7United States NASA5 August 1969flybysuccess 1969-030A
Mars 1969ASoviet Union USSR27 March 1969 (launch)orbiterfailurelaunch failureMARS69A
Mars 1969BSoviet Union USSR2 April 1969 (launch)orbiterfailurelaunch failureMARS69B

1971–1976Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Mariner 8United States NASA9 May 1971 (launch)orbiterfailurelaunch vehicle failure MARINH
Kosmos 419Soviet Union USSR10 May 1971 (launch)orbiterfailurefailed to escape Earth orbit1971-042A
Mariner 9United States NASA14 November 1971 –
27 October 1972
orbitersuccessfirst spacecraft to orbit another planet 1971-051A
Mars 2Soviet Union USSR27 November 1971 –
22 August 1972
orbitersuccessfirst Soviet spacecraft to orbit another planet1971-045A
  Mars 2 LanderSoviet Union USSR27 November 1971lander and short range roverfailurecrashed; first manmade object to reach surface of Mars1971-045D
Mars 3Soviet Union USSR2 December 1971 –
22 August 1972
orbiterpartial successattained a different orbit than intended due to insufficient fuel1971-049A
Mars 3 LanderSoviet Union USSR2 December 1971lander and short range roverpartial successfirst soft landing on Mars; contact lost 110 sec after soft landing, first picture from surface1971-049F
Mars 4Soviet Union USSR10 February 1974orbiterfailureorbit insertion failed, became flyby1973-047A
Mars 5Soviet Union USSR12 February 1974 –
28 February 1974
orbitersuccess1973-049A
Mars 6Soviet Union USSR12 March 1974flybysuccess1973-052A
Mars 6 LanderSoviet Union USSR12 March 1974landerfailurecontact lost 148 sec after parachute deployment (returned 224 seconds of atmospheric data)
Mars 7Soviet Union USSR9 March 1974flybysuccess1973-053A
Mars 7 LanderSoviet Union USSR9 March 1974landerfailuremissed Mars
Viking 1 OrbiterUnited States NASA19 June 1976 –
17 August 1980
orbitersuccess1975-075A
Viking 1 LanderUnited States NASA20 July 1976 –
13 November 1982
landersuccess 1975-075C
Viking 2 OrbiterUnited States NASA7 August 1976 –
25 July 1978
orbitersuccess1975-083A
Viking 2 LanderUnited States NASA3 September 1976 –
11 April 1980
landersuccess 1975-083C

1988–1999Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Phobos 1Soviet Union USSR7 July 1988 (launch)orbiterfailurecontact lost en route to Mars 1988-058A
Phobos 2Soviet Union USSR29 January 1989 –
27 March 1989
orbiterpartial successMars orbit acquired, but contact lost shortly before Phobos approach phase and deployment of Phobos landers 1988-059A
Mars ObserverUnited States NASA25 September 1992 (launch)orbiterfailurecontact lost shortly before Mars orbit insertion1992-063A
Mars 96Russia RKA16 November 1996 (launch)orbiterfailurefailed to escape Earth orbit1996-064A
lander MARS96B
landerMARS96C
penetrator MARS96D
penetratorMARS96E
Mars PathfinderUnited States NASA4 July 1997 –
27 September 1997
landersuccess1996-068A
   SojournerUnited States NASA6 July 1997 –
27 September 1997
roversuccessfirst Mars rover MESURPR
Mars Global SurveyorUnited States NASA12 September 1997 –
2 November 2006
orbitersuccess 1996-062A
Mars Climate OrbiterUnited States NASA23 September 1999orbiterfailureMars orbit insertion failed due to navigation error 1998-073A
Mars Polar LanderUnited States NASA3 December 1999landerfailurecontact lost just prior to entering Martian atmosphere 1999-001A
Deep Space 2 "Amundsen"United States NASA3 December 1999penetrator DEEPSP2
Deep Space 2 "Scott"United States NASA3 December 1999penetrator

2001–2009Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
2001 Mars OdysseyUnited States NASA24 October 2001 –orbitersuccessstudying climate and geology; communications relay for Spirit and Opportunity rovers
longest surviving spacecraft in orbit around a planet other than Earth
 2001-014A
NozomiJapan ISAS14 December 2003orbiterfailurefailed to attain Mars orbit, became flyby1998-041A
Mars ExpressEurope ESA25 December 2003 –orbitersuccesssurface imaging and mapping; first European probe in Martian orbit 2003-022A
  Beagle 2United Kingdom UK25 December 2003landerfailureDeployed by the Mars Express; lost for 11 years and imaged by NASA's MRO in 2015[33] 2003-022C
MER-A "Spirit"United States NASA4 January 2004 – 22 March 2010roversuccessbecame stuck in May 2009; then operating as a static science station until contact lost in March 2010 2003-027A
MER-B "Opportunity"United States NASA25 January 2004 – 10 June 2018roversuccesslost 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 OrbiterUnited States NASA10 March 2006 –orbitersuccesssurface imaging and surveying 2005-029A
RosettaEurope ESA25 February 2007flybysuccessgravity assist en route to asteroid and comet encounters 2004-006A
PhoenixUnited States NASA25 May 2008 –
10 November 2008
landersuccesscollection of soil samples near the northern pole to search for water and investigate Mars' geological history and biological potential 2007-034A [34]
DawnUnited States NASA17 February 2009flybysuccessgravity assist en route to Vesta and Ceres 2007-043A

2011–2018Edit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Fobos-GruntRussia RKA8 November 2011 (launch)orbiter and Phobos sample returnfailurefailed to escape Earth orbit2011-065A
   Yinghuo-1China CNSAorbiterYINGHUO-1
MSL CuriosityUnited States NASA6 August 2012 –roversuccessinvestigation of past and present habitability, climate and geology 2011-070A [35]
Mangalyaan / Mars Orbiter MissionIndia ISRO24 September 2014 –orbitersuccessfirst Indian spacecraft to orbit another planet, studying Martian atmosphere; mineralogical mapping. 2013-060A [36][37]
MAVENUnited States NASA25 September 2014 –orbitersuccessstudying Martian atmosphere 2013-063A [38]
ExoMars Trace Gas Orbiter (ExoMars 2016)Europe ESA/
Russia RKA
19 October 2016 –orbiterin orbitatmospheric gas analysis; communication relay for surface probes 2016-017A [39]
   Schiaparelli EDM landerEurope ESA19 October 2016landercrashed upon landing[40]landing test, meteorological observation 
InSightUnited States NASA26 November 2018 –landerlandedfull deployment will take 3 months after landing[41] INSIGHT [42]
MarCO A "WALL-E"United States NASA26 November 2018flybysuccessrelaying data from InSight during its entry, descent, and landing
 
MarCO B "EVE"United States NASA26 November 2018flybysuccess

2020–PresentEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Emirates Mars MissionUnited Arab Emirates MBRSC9 February 2021 –orbiterin orbitconduct studies of Martian atmosphereEMM-HOPE [43]
Tianwen-1 orbiterChina CNSA10 February 2021 -orbiterin orbitorbital studies of Martian surface morphology, soil, and atmosphereHUOXING+1 [44][45][46][47][48]
   Tianwen-1 Deployable CameraChina CNSA~10 February 2021flybysuccessimaged Tianwen-1 in deep space
   Tianwen-1 landerChina CNSA14 May 2021landerlandedReaches end of designed lifespan after successful soft landing.
   ZhurongChina CNSA22 May 2021 -roverdeployedin-situ studies of Martian surface morphology, soil, and atmosphere
   Tianwen-1 Remote CameraChina CNSA1 June 2021landersuccessimaged Tianwen-1 lander and Zhurong rover on Mars
Mars 2020 PerseveranceUnited States NASA18 February 2021 -roverlandedinvestigate past and present habitability, climate, and geology; produce O2 from CO2; collect samples for Mars Sample Return Mission 2020-052A [49]
   Mars Helicopter IngenuityUnited States NASA3 April 2021 -autonomous UAV helicopterdeployedexperimental scout for the Perseverance rover. Took 1st flight successfully from takeoff to landing. 

ProposedEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
ExoMars Kazachok (ExoMars 2022)Europe ESA /
Russia RKA
2022landerplanned[50][51]
   Rosalind FranklinEurope ESA2022roverplanned 
PsycheUnited States NASA2022 (launch)
2023 (flyby)
flybyplannedgravity assist en route to Psyche[52]
JUICEEurope ESA2022 (launch)
February 2025 (flyby)
flybyplannedgravity assist en route to Jupiter [23]
Martian Moons Exploration (MMX)Japan JAXA2024 (launch)
Mid-2025 (arrival)
orbiterplannedmonitoring Martian climate[53]
ZhengHeChina CNSA2024 (launch)
2027 (flyby)
flybyplannedgravity assist en route to 133P/Elst-Pizzaro[54]


Mars Orbiter Mission 2India ISRONET 2024orbiterplannedOrbital studies of Mars including Mars' ionosphere[55][56]
Mars Sample Return MissionUnited States NASA /
Europe ESA
2026orbiter, lander, rover, and sample returnunder study [57][58]
Chinese Mars Sample Return MissionChina CNSA2028orbiter, lander, and ascenderunder study[59][60]
Next Mars Orbiter (NeMO)United States NASALate 2020s[61]orbiterunder studyLaser communications relay, high-resolution mapping [62]

Phobos probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Phobos 1Soviet Union USSR7 July 1988 (launch)flybyfailurecontact lost en route to Mars 1988-058A
  DASSoviet Union USSR2 September 1988fixed landerfailurenever deployed
Phobos 2Soviet Union USSR27 March 1989 (contact lost)flybyfailureattained Mars orbit; contact lost prior to deployment of lander 1988-059A
  DASSoviet Union USSR27 March 1989fixed landerfailurenever deployed
  "Frog"Soviet Union USSR27 March 1989mobile landerfailurenever deployed
Fobos-GruntRussia RKA8 November 2011 (launch)sample returnfailurefailed to escape Earth orbit; launched with Yinghuo-1 Mars orbiter2011-065A
MMXJapan JAXA2024 (launch)
2025 (arrival)
sample returnplannedorbital insertion in 2025[63][64]
   MMX roverFrance CNES/
Germany DLR
2025roverplanned

Ceres probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
DawnUnited States NASA6 March 2015 – 1 November 2018orbitersuccessfirst spacecraft to orbit two different celestial bodies; previously visited Vesta 2007-043A

Asteroid probesEdit

TargetSpacecraftOrganizationDateTypeStatusNotesImageRef
951 GaspraGalileoUnited States NASA29 October 1991flybysuccessen route to Jupiter; minimum distance 1900 km [14]
243 IdaGalileoUnited States NASA28 August 1993flybysuccessen route to Jupiter; minimum distance 2400 km; discovery of the first asteroid satellite Dactyl [14]
1620 GeographosClementineUnited States BMDO/
No image.svg NASA
1994flybyfailureflyby cancelled due to equipment malfunction 1994-004A
253 MathildeNEAR
Shoemaker
United States NASA27 June 1997flybysuccessflew within 1200 km of 253 Mathilde en route to 433 Eros 1996-008A
433 ErosNEAR
Shoemaker
United States NASAJanuary 1999orbiterfailurebecame flyby due to software and communications problems (later attempt at orbit insertion succeeded; see below) 1996-008A
9969 BrailleDeep Space 1United States NASA29 July 1999flybypartial successno close-up images due to camera pointing error; went on to visit comet 19P/Borrelly 1998-061A
2685 MasurskyCassiniUnited States NASA/
Europe ESA/
Italy ASI
23 January 2000distant flybysuccessen route to Saturn 1997-061A
433 ErosNEAR
Shoemaker
United States NASAFebruary 2000 –
February 2001
orbiter, became landersuccessimprovised landing by orbiter at end of mission 1996-008A
5535 AnnefrankStardustUnited States NASA2 November 2002distant flybysuccesswent on to visit comet 81P/Wild 1999-003A
25143 ItokawaHayabusaJapan ISAS2005–07sample returnsuccess2005: landed and collected dust grains.
2010: sample returned.
 2003-019A
   MINERVAJapan ISAS12 November 2005hopperfailuremissed target
132524 APLNew HorizonsUnited States NASAJune 2006distant flybysuccessflew past Pluto successfully2006-001A
2867 ŠteinsRosettaEurope ESA5 September 2008flybysuccessen route to comet 67P/Churyumov–Gerasimenko 2004-006A
21 LutetiaRosettaEurope ESA11 July 2010flybysuccessen route to comet 67P/Churyumov–Gerasimenko 2004-006A
4 VestaDawnUnited States NASA16 July 2011 – 5 September 2012orbitersuccessfirst spacecraft to orbit two different celestial bodies; now orbiting Ceres 2007-043A
4179 ToutatisChang'e 2China CNSA13 December 2012flybysuccess2010-050A
2000 DP107PROCYONJapan University of Tokyo / JAXA12 May 2016[65]flybyfailurelaunched with Hayabusa2 in 2014; mission abandoned after ion thruster failure[66]2014-076D
162173 RyuguHayabusa2Japan JAXA27 June 2018 – 13 November 2019sample returnsuccessasteroid rendezvous in June 2018, sample capture in 2019; returned sample to Earth on 5 December 20202014-076A
   Minerva II-1AJapan JAXA21 September 2018hoppersuccess
   Minerva II-1BJapan JAXA21 September 2018hoppersuccess
   MASCOTGermany DLR/
France CNES
3 October 2018mobile landersuccess
   SCIJapan JAXA5 April 2019impactorsuccess
   DCAM-3Japan JAXA5 April 2019orbitersuccessobserving SCI's impact, and the ejecta created by the impact
   Minerva II-2Japan JAXA2 October 2019hopperfailureRover failed before deployment, it was deployed in orbit around the asteroid to perform gravitational measurements before it impacted on 8 October 2019.
101955 BennuOSIRIS-RExUnited States NASAAugust 2018sample returnin orbitorbital insertion in 2018, sample capture in 2020, return to Earth in 2023 2016-055A
2002 GTDeep ImpactUnited States NASAJanuary 2020[67]flybyfailurecontact lost; previously visited comet 103P/Hartley 2005-001A
?Near-Earth Asteroid ScoutUnited States NASA2021 (launch)flybyplannedSmall spacecraft asteroid flyby technology demonstration[68]
65803 DidymosDARTUnited States NASA2021 (launch)
October 2022 (flyby)
flybyScheduled[69]
   LICIAItaly ASI2022flybyplannedobserve DART's impact
(65803) DimorphosDARTUnited States NASAOctober 2022 (impact)impactorplanned[70]
52246 DonaldjohansonLucyUnited States NASA2021 (launch)
April 2025 (flyby)
flybyplannedSelected for mission #13 of NASA's Discovery Program, main-belt asteroid flyby en route to Jupiter Trojans[52]
16 PsychePsycheUnited States NASA2022 (launch)
2026 (arrival)
orbiterplannedSelected for mission #14 of NASA's Discovery Program[52]
469219 Kamo‘oalewaZhengHeChina CNSA2025 (launch)
2026 (orbit)
sample returnplannedorbit then return sample from an Apollo NEA[59][47][54]
2001 CC21Hayabusa2Japan JAXA2026 (flyby)flybyen route2014-076A[71]
3548 EurybatesLucyUnited States NASAAugust 2027flybyplannedFirst flyby of a Jupiter trojan[52]
15094 PolymeleLucyUnited States NASASeptember 2027flybyplanned[52]
65803 DidymosHeraEurope ESA2027orbiterplannedstudying effects of DART's impact on the asteroid[72][73]
   APEXEurope ESA2027orbiterplannedto be deployed from Hera
   JuventasEurope ESA2027orbiterplannedto be deployed from Hera
(65803) DimorphosAPEXEurope ESAlanderplanned[73]
JuventasEurope ESAlanderplanned
11351 LeucusLucyUnited States NASAApril 2028flybyplanned[52]
21900 OrusLucyUnited States NASANovember 2028flybyplanned[52]
3200 PhaethonDESTINY+Japan JAXA2024 (launch)
2028 (flyby)
flybyplannedFirst flyby of a rock comet[74]
1998 KY26Hayabusa2Japan JAXA2030 (flyby)flybyen routeflyby of a fast rotator asteroid2014-076A[71]
P/2013 P5
or
7968 Elst-Pizarro
ZhengHeChina CNSA2025 (launch)
2033 (orbit)
orbiter, landerplannedstudy of an asteroid/main-belt comet[59][47][54]
Patroclus and MenoetiusLucyUnited States NASAMarch 2033flybyplannedFirst flyby of a Trojan Camp Jupiter Trojan[52]

Jupiter probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Pioneer 10United States NASA3 December 1973flybysuccessfirst 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 11United States NASA4 December 1974flybysuccesswent on to visit Saturn 1973-019A
Voyager 1United States NASA5 March 1979flybysuccesswent on to visit Saturn 1977-084A
Voyager 2United States NASA9 July 1979flybysuccesswent on to visit Saturn, Uranus and Neptune 1977-076A
Ulysses
(first pass)
Europe ESA/
United States NASA
February 1992flybysuccessgravity assist en route to inclined heliocentric orbit for solar polar observations 1990-090B
Galileo OrbiterUnited States NASA/
Germany West Germany
7 December 1995 –
21 September 2003
orbitersuccessalso 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 ProbeUnited States NASA7 December 1995atmospheric probesuccessfirst probe to enter Jupiter's atmosphere 1989-084E
CassiniUnited States NASA/
Europe ESA/
Italy ASI
December 2000flybysuccessgravity assist en route to Saturn 1997-061A
Ulysses
(second pass)
Europe ESA/
United States NASA
2003–04distant flybysuccess 1990-090B
New HorizonsUnited States NASA28 February 2007flybysuccessgravity assist en route to Pluto2006-001A
JunoUnited States NASA5 July 2016 – July 2018, with spacecraft disposal planned for July 2021[75]orbitersuccessFirst solar-powered Jupiter orbiter, first mission to achieve a polar orbit of Jupiter. 2011-040A
JUICEEurope ESA2022 (launch)orbiterplannedmission to study Jupiter's three icy moons CallistoEuropa and Ganymede, eventually orbiting Ganymede as the first spacecraft to orbit a satellite of another planet [76]
Europa ClipperUnited States NASA2024orbiterplannedplanned to orbit Jupiter and fly by Europa multiple times [77]
IHP-1China CNSA2024 (launch,) 2029 (Jupiter closest approach)flybyunder studyProposed Interstellar Heliosphere Probe with Jovian gravity assist[78]
IHP-2China CNSA2025 (launch,) 2033 (Jupiter closest approach)flybyunder studyProposed Interstellar Heliosphere Probe with Jovian gravity assist (and later Neptune and KBO flybys)[78]
Gan DeChina CNSA2029 or early 2030sorbiterunder studyProposed Jupiter orbiter with possible attached Uranus probe[79][80][81]

Saturn probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Pioneer 11United States NASA1 September 1979flybysuccesspreviously visited Jupiter 1973-019A
Voyager 1United States NASA12 November 1980flybysuccesspreviously visited Jupiter 1977-084A
Voyager 2United States NASA5 August 1981flybysuccesspreviously visited Jupiter, went on to visit Uranus and Neptune 1977-076A
CassiniUnited States NASA/
Europe ESA/
Italy ASI
1 July 2004 – 15 September 2017orbitersuccessalso performed flybys of a number of Saturn's moons, and deployed the Huygens Titan lander; first spacecraft to orbit Saturn 1997-061A

Titan probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
HuygensEurope ESA14 January 2005atmospheric probe, landersuccessdeployed by Cassini; first probe to land on a satellite of another planet [82]
DragonflyUnited States NASA2027rotorcraft landerplannedplanned lander and aircraft, study prebiotic chemistry and extraterrestrial habitability. [83][84][85]

Uranus probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Voyager 2United States NASA24 January 1986flybysuccesspreviously visited Jupiter and Saturn; went on to visit Neptune 1977-076A
Gan DeChina CNSA2029 or early 2030sflybyunder studyProposed Jupiter orbiter with possible attached Uranus probe[86][80][81]

Neptune probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
Voyager 2United States NASA25 August 1989flybysuccesspreviously visited Jupiter, Saturn and Uranus 1977-076A
IHP-2China CNSA2024 (launch), 2038 (Neptune closest approach)flybyunder studyProposed heliosphere probe with Neptunian flyby and possible atmospheric probe[78]

Pluto probesEdit

SpacecraftOrganizationDateTypeStatusNotesImageRef
New HorizonsUnited States NASA14 July 2015flybysuccesslater flew by Kuiper belt object 486958 Arrokoth when it was 43.4 AU from the Sun. 2006-001A

Comet probesEdit

TargetSpacecraftOrganizationDateTypeStatusNotesImageRef
21P/Giacobini-ZinnerICE (formerly ISEE3)United States NASA11 September 1985flybysuccesspreviously solar monitor ISEE3; went on to observe Halley's Comet 1978-079A
1P/HalleyVega 1Soviet Union SAS6 March 1986flybysuccessminimum distance 8,890 km; previously visited Venus 1984-125A
1P/HalleySuiseiJapan ISAS8 March 1986flybysuccess151,000 km 1985-073A
1P/HalleyVega 2Soviet Union SAS9 March 1986flybysuccessminimum distance 8,890 km; previously visited Venus 1984-128A
1P/HalleySakigakeJapan ISASMarch 1986distant flybypartial successminimum distance 6.99 million km 1985-001A
1P/HalleyGiottoEurope ESA14 March 1986flybysuccessminimum distance 596 km; went on to visit comet 26P/Grigg–Skjellerup 1985-056A
1P/HalleyICE (formerly ISEE3)United States NASA28 March 1986distant obser-
vations
successminimum distance 32 million km; previously visited comet 21P/Giacobini–Zinner 1978-079A
26P/Grigg–SkjellerupGiottoEurope ESA10 July 1992flybysuccesspreviously visited Halley's Comet 1985-056A
45P/
Honda–Mrkos–Pajdusakova
SakigakeJapan ISAS1996flybyfailurecontact lost; previously visited Halley's Comet 1985-001A
21P/Giacobini-ZinnerSakigakeJapan ISAS1998flybyfailure
55P/Tempel-TuttleSuiseiJapan ISAS1998flybyfailureabandoned due to lack of fuel; previously visited Halley's Comet 1985-073A
21P/Giacobini-ZinnerSuiseiJapan ISAS1998flybyfailure
19P/BorrellyDeep Space 1United States NASA22 September 2001flybysuccesspreviously visited asteroid 9969 Braille 1998-061A
2P/EnckeCONTOURUnited States NASA2003flybyfailurecontact lost shortly after launch 2002-034A
81P/WildStardustUnited States NASA2 January 2004flyby, sample returnsuccesssample returned January 2006; also visited asteroid 5535 Annefrank 1999-003A
9P/TempelDeep ImpactUnited States NASAJuly 2005flybysuccess 2005-001A
   ImpactorUnited States NASA4 July 2005impactorsuccess
73P/
Schwassmann-Wachmann
CONTOURUnited States NASA2006flybyfailurecontact lost shortly after launch 2002-034A
6P/d'ArrestCONTOURUnited States NASA2008flybyfailurecontact lost shortly after launch 2002-034A
103P/HartleyDeep Impact (redesignated EPOXI)United States NASA4 November 2010flybysuccessmission extension (target changed from comet Boethin) 2005-001A
9P/TempelStardust (redesignated NExT)United States NASA14 February 2011flybysuccessmission extension 1999-003A
67P/Churyumov–
Gerasimenko
RosettaEurope ESA6 August 2014 – 30 September 2016orbitersuccessflybys of asteroids 2867 Šteins and 21 Lutetia completed; intentionally impacted at end of mission 2004-006A
   PhilaeEurope ESA12 November 2014 – 9 July 2015landersuccess 2004-006C
TBD
(potentially an interstellar object)
Comet InterceptorEurope ESA2029 (launch)flybyplannedflyby of a pristine comet, will initially be parked at the Sun-Earth L2 point until a suitable destination is identified[87][88]
311P/PANSTARRS
or
133P/Elst-Pizarro
ZhengHeChina CNSA2025 (launch)
2033 (orbit)
orbiter, landerplannedstudy of an asteroid/main-belt comet[59][47][54]

Kuiper Belt probesEdit

TargetSpacecraftOrganizationDateTypeStatusNotesImageRef
486958 ArrokothNew HorizonsUnited States NASA1 January 2019flybysuccessextended mission after Pluto, currently sending data from flyby; may flyby another object in 2020s.[89] 2006-001A
To Be DeterminedIHP-2China CNSA2024 (launch,) after 2038 (KBO flyby)flybyunder studyProposed Interstellar Heliosphere Probe with potential KBO target[78]

Probes leaving the Solar SystemEdit

SpacecraftOrganizationNotesImageRef
Pioneer 10United States NASALeft Jupiter in December 1973. Mission ended March 1997. Last contact 23 January 2003. Craft now presumed dead; no further contact attempts planned.Pioneer 10 at Jupiter.gif1972-012A
Pioneer 11United States NASALeft 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.Pioneer 11 at Saturn.gif1973-019A
Voyager 1United States NASALeft Saturn in November 1980. Still in regular contact and transmitting scientific data.Voyager.jpg1977-084A
Voyager 2United States NASALeft Neptune in August 1989. Still in regular contact and transmitting scientific data.Voyager.jpg1977-076A
New HorizonsUnited States NASALeft Pluto 14 July 2015; flew by Kuiper belt object 486958 Arrokoth on 1 January 2019 when it was 43.4 AU from the Sun.New Horizons Transparent.png2006-001A
IHP-1China CNSAProposed Interstellar Heliosphere Probe with a 2024 launch date. Anticipated to reach a distance of at least 85 AU from Earth by 2049[78]
IHP-2China CNSAProposed Interstellar Heliosphere Probe with a 2024 launch date. Anticipated to reach a distance of at least 83 AU from Earth by 2049[78]

Other probes to leave Earth orbitEdit

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.

SpacecraftOrganizationDateLocationStatusNotesImageRef
WMAPUnited States NASA30 June 2001 (launch) –
October 2010 (end)[90]
Sun-Earth L2 pointsuccesscosmic background radiation observations; sent to graveyard orbit after 9 years of use.[90]WMAP2.jpg2001-027A
Spitzer Space TelescopeUnited States NASA25 August 2003 (launch) –
30 January 2020 (end)
Earth-trailing heliocentric orbitsuccessinfrared astronomy2003-038A
KeplerUnited States NASA6 March 2009 (launch)Earth-trailing heliocentric orbitcompleted (2009–2018)search for extrasolar planetsKepler Space Telescope.png2009-011A [91]
Herschel Space ObservatoryEurope ESA14 May 2009 (launch)Lissajous orbit around Sun-Earth L2 pointcompletedstudy of formation and evolution of galaxies and starsHerschel Space Observatory.jpg2009-026A
PlanckEurope ESA14 May 2009 (launch)Lissajous orbit around Sun-Earth L2 pointcompleted (2009–2013)cosmic microwave background observations2009-026B
IKAROSJapan JAXA20 May 2010 (launch)Earth-Venus transfer heliocentric orbitoperationalsolar sail technology development / interplanetary space explorationIKAROS solar sail.jpg2010-020E [18]
Shin'en
(UNITEC-1)
Japan UNISECfailuretechnology development; contact lost shortly after launch[21]2010-020F [20]
Chang'e 2China CNSA25 August 2011 (arrive) –
15 April 2012 (end)
Sun-Earth L2 pointsuccessLeft the point on 15 April 2012, then flew by asteroid 4179 Toutatis2010-050A
GaiaEurope ESA19 December 2013 (launch)Lissajous orbit around Sun-Earth L2 pointsuccessastrometry mission to measure the position and motion of 1 billion stars2013-074A [92]
Shin'en 2Japan Kyushu Institute of Technology3 December 2014 (launch)heliocentric orbitsuccessamateur radio satellite / material demonstration2014-076B[93]
ARTSAT2:DESPATCHJapan Tama Art Universitysuccessdeep space artwork / amateur radio satellite2014-076C[94]
LISA PathfinderEurope ESA3 December 2015 (launch)[95] –
30 June 2017 (end)
Halo orbit around Sun-Earth L1 pointsuccesstest mission for proposed LISA gravitational wave observatoryLISA Pathfinder (14257775333).jpg2015-070A [96]
Spektr-RGRussia Germany13 July 2019 (launch)Halo orbit around Sun-Earth L2 pointoperationalX-ray astronomy2019-040A[97]
Chang'e 5China CNSA23 November 2020 (launch)Halo orbit about Sun-Earth L1 pointoperationaltest mission post lunar sample return2020-087A[98][99]
James Webb Space TelescopeUnited States NASA
Europe ESA
Canada CSA
October 2021 (launch)Sun-Earth L2 pointplannedinfrared astronomyJames Webb Space Telescope.jpg[100]
EuclidEurope ESA2022 (launch)Halo orbit around Sun-Earth L2 pointplannedmeasure the rate of expansion of the Universe through time to better understand dark energy and dark matterEuclid ESA376594.jpg[101]

Cancelled probes and missionsEdit

TargetSpacecraftOrganizationDateTypeStatusNotesImageRef
MercuryBepiColombo Mercury Surface ElementEurope ESAlandercancelled
MoonLUNAR-AJapan JAXAorbiter, penetratorscancelledoriginally scheduled for 1995, cancelled 2007LUNAR-A
MarsMars Surveyor 2001 LanderUnited States NASA2001landercancelledspacecraft bus repurposed for Phoenix landerSlander med.jpgMS2001L
MarsBeagle 2: Evolution2004landercancelled
MarsNetLanderFrance CNES/
Europe ESA
landercancelled[102]
MarsMars Telecommunications OrbiterUnited States NASA2010orbitercancelledMission could be fulfilled by the proposed Mars 2022 orbiterPIA07500.jpg[103]
Phobos, DeimosAladdinUnited States NASAsample returnnot selected[104]
EuropaEuropa OrbiterUnited States NASAorbitercancelled[105]
EuropaGanymedeCallistoJupiter Icy Moons OrbiterUnited States NASA2021orbitercancelledJupiter Icy Moons Orbiter 2.jpg[106]
PlutoPluto Fast FlybyUnited States NASA2010flybycancelledRe-proposed as Pluto Kuiper Express
PlutoPluto Kuiper
Express
United States NASA2012flybycancelledReplaced by New HorizonsPluto express.jpgPLUTOKE
4660 NereusHayabusaJapan ISASsample returncancelledrerouted to 25143 ItokawaHayabusa(Muses-C) sampling.jpg2003-019A
3840 MimistrobellRosettaEurope ESA2006flybycancelledreroutedRosetta.jpg2004-006A
4979 OtawaraRosettaEurope ESA2006flybycancelledreroutedRosetta.jpg2004-006A
4660 NereusNear Earth Asteroid ProspectorSpaceDevsample returncancelled[107]
46P/WirtanenRosettaEurope ESA2011orbitercancelledrerouted to 67P/Churyumov–GerasimenkoRosetta.jpg2004-006A

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 Metasyntactic variable, which is released under the 
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