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List of missions to the outer planets

{{Short description|none}}

{{Use British English|date=January 2014}}

{{Use dmy dates|date=March 2023}}

File:Voyager probes with the outer worlds.jpg spacecraft have visited and studied. It is the only program that visited all four outer planets.]]

A total of nine spacecraft have been launched on missions that involve visits to the outer planets; all nine missions involve encounters with Jupiter, with four spacecraft also visiting Saturn. One spacecraft, Voyager 2, also visited Uranus and Neptune. The nine missions include two, Ulysses and New Horizons, whose primary objectives were not outer planets, but which flew past Jupiter to gain gravity assists en route to a polar orbit around the Sun (Ulysses), and to Pluto (New Horizons). Pluto was considered a planet at the time that New Horizons launched, but was reclassified as a dwarf planet. Cassini–Huygens also flew past Jupiter for a gravity assist on its mission to explore Saturn.

Only three of the missions to the outer planets have been orbiters: Galileo orbited Jupiter for eight years, while Cassini orbited Saturn for thirteen years. Juno has been orbiting Jupiter since 2016.

Summary

File:Missions to the outer planets.jpg

{{sticky header}}

class="wikitable sticky-header" style="font-size:small;"
{{diagonal split header|Spacecraft|System}}

! Jupiter
Jupiter trojans

! Saturn

! Uranus
Uranus trojans

! Neptune
Neptune trojans

! Pluto
Trans-Neptunian objects

Pioneer 10

| 1973 flyby
Jupiter and moons

|

Pioneer 11

| 1974 flyby
Jupiter and moons

| 1979 flyby
Saturn and moons

|

Voyager 1

| 1979 flyby
Jupiter and moons

| 1980 flyby
Saturn and moons

|

Voyager 2

| 1979 flyby
Jupiter and moons

| 1981 flyby
Saturn and moons

| 1986 flyby
Uranus and moons

| 1989 flyby
Neptune and moons

|

Ulysses

| 1992, 2004 gravity assist
Jupiter

|

Galileo

| 1995–2003 orbiter
Jupiter and moons
1995 atmospheric
Jupiter

|

Cassini–Huygens

| 2000 gravity assist
Jupiter and moons

| 2004–2017 orbiter
Saturn and moons
2005 lander
Titan

|

New Horizons

| 2007 gravity assist
Jupiter and moons

|

|

|

| 2015 flyby
Pluto and moons
2019 flyby
486958 Arrokoth

Juno

| 2016–2025 orbiter
Jupiter

|

Lucy

| 2027– flyby mission (launched 2021)
3548 Eurybates
15094 Polymele
11351 Leucus
21900 Orus
617 Patroclus

|

Jupiter Icy Moons Explorer

| 2031– orbiter mission (launched 2023)
Jupiter and Ganymede

|

Europa Clipper

| 2030– orbiter mission (launched 2024)
Europa

|

Jupiter

{{main|Exploration of Jupiter}}

Nine spacecraft have been launched to explore Jupiter, with two other spacecraft making gravity-assist flybys.

New Horizons, although eventually targeting Pluto, used Jupiter for a gravity assist and had an extensive almost half year observation campaign of Jupiter and its moons (hence it is counted in the eight).[https://www.nasa.gov/pdf/168024main_011607_JupiterPressKit.pdf NASA Jupiter Press Kit (pdf)]

{{legend|#cccccc|Gravity assist, destination elsewhere}}

{{clear}}

{{sticky header}}

class="wikitable sortable sticky-header" style="width:100%"
colspan="2"|Mission

! Spacecraft

! Launch date

! Carrier rocket

! Operator

! Mission Type

! Outcome

rowspan="2" | 1

|rowspan="2" | Pioneer 10

| Pioneer 10

| {{dts|3 March 1972}}{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|accessdate=6 January 2013|first=Jonathan|last=McDowell|work=Jonathan's Space Page}}

| {{nowrap|Atlas SLV-3C Centaur-D{{cite web|url=http://space.skyrocket.de/doc_sdat/pioneer-1011.htm|title=Pioneer 10, 11, H|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=6 January 2013}}}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Pioneer_10|archive-url=https://web.archive.org/web/20040815230049/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Pioneer_10|url-status=dead|archive-date=15 August 2004|title=Solar System Exploration - Pioneer 10|publisher=NASA|accessdate=6 January 2013}}

colspan="6" |Humanity's first object to attain Solar system's escape velocity. First probe to traverse the asteroid belt, to reach Jovanian system, to use a gravity assist and to leave the proximity of Solar systems' planets. Held the record for fastest human-made object at the time and the most distant one until Voyager 1 overtook in 1998. Closest approach towards Jupiter was at 02:25 UTC on 4 December 1973. Flew by Callisto, Ganymede, Europa and Io at long distances. Final signal received on 23 January 2003, {{Convert|12|e9km|AU e9mi|abbr=unit}} from Earth.{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?MCode=Pioneer_10&Display=ReadMore|archive-url=https://web.archive.org/web/20100623141101/http://solarsystem.nasa.gov/missions/profile.cfm?MCode=Pioneer_10&Display=ReadMore|url-status=dead|archive-date=23 June 2010|title=Solar System Exploration - Pioneer 10 |publisher=NASA|accessdate=6 January 2013}}
rowspan="2" | 2

|rowspan="2" | Pioneer 11

| Pioneer 11

| {{dts|6 April 1973}}

| {{nowrap|Atlas SLV-3D Centaur-D1A}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Pioneer_11|archive-url=https://web.archive.org/web/20040101123031/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Pioneer_11|url-status=dead|archive-date=1 January 2004|title=Solar System Exploration - Pioneer 11|publisher=NASA|accessdate=6 January 2013}}

colspan="6" |Closest approach towards Jupiter at 05:22 UTC on 3 December 1974. Flew by Callisto, Ganymede, Io and Europa . First probe to reach Saturnian system. Final contact was roughly at a distance of {{Convert|6.5|e9km|AU e9mi|abbr=unit}}{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Pioneer_11&Display=ReadMore|archive-url=https://web.archive.org/web/20150614232609/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Pioneer_11&Display=ReadMore|url-status=dead|archive-date=14 June 2015|title=Solar System Exploration - Pioneer 11 |publisher=NASA|accessdate=6 January 2013}}
rowspan="2" | 3

|rowspan="2" | Voyager 2

| Voyager 2

| {{dts|20 August 1977}}

| {{nowrap|Titan IIIE Centaur-D1T{{cite web|url=http://space.skyrocket.de/doc_sdat/voyager.htm|title=Voyager 1, 2|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=6 January 2013}}}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Closest approach at 22:29 on 9 July 1979. Flew past Callisto, Ganymede, Europa, Amalthea and Io at long distances. Later flew past Saturn, Uranus and Neptune. Oldest active space probe at {{time interval|20 August 1977 12:56:00|show=ymd|sep=,}}. Currently studying interstellar medium. At a distance of {{Convert|136.1|AU|e9km e9mi|sigfig=3|abbr=unit|lk=on}} from Earth {{as of|2024|05|lc=yes|df=US}}{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Voyager_2&Display=ReadMore|archive-url=https://web.archive.org/web/20150614232612/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Voyager_2&Display=ReadMore|url-status=dead|archive-date=14 June 2015|title=Solar System Exploration - Voyager 2 |publisher=NASA|accessdate=6 January 2013}}
rowspan="2" | 4

|rowspan="2" | Voyager 1

| Voyager 1

| {{dts|5 September 1977}}

| {{nowrap|Titan IIIE Centaur-D1T}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Closest approach at 12:05 UTC on 5 March 1979. Flew past Amalthea, Europa, Ganymede and Callisto at long distances. Later flew past Saturn. First probe to depart heliosphere and enter interstellar medium. Most distant human-made object at a distance of {{Convert|162.7|AU|e9km e9mi|sigfig=3|abbr=unit|lk=on}} from Earth {{as of|2024|05|lc=yes|df=US}}.{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Voyager_1&Display=ReadMore|archive-url=https://web.archive.org/web/20040815234700/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Voyager_1&Display=ReadMore|url-status=dead|archive-date=15 August 2004|title=Solar System Exploration - Voyager 1 |publisher=NASA|accessdate=6 January 2013}}
rowspan="3" | 5

|rowspan="3" | Galileo project

| Galileo

|rowspan="2" | {{dts|18 October 1989}}

|rowspan="2" | {{nowrap|{{OV|104}}
STS-34 / IUS{{cite web|url=http://space.skyrocket.de/doc_sdat/galileo.htm|title=Galileo|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=6 January 2013}}}}

|rowspan="2" | {{flagicon|USA}} NASA

| Orbiter

| {{yes|{{hs|4}}Successful}}{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Galileo|archive-url=https://web.archive.org/web/20040224124043/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Galileo|url-status=dead|archive-date=24 February 2004|title=Solar System Exploration - Galileo|publisher=NASA|accessdate=6 January 2013}}

Atmopsheric entry probe

| Atmospheric probe

| {{yes|{{hs|4}}Successful}}

colspan="6" |First probe to enter Jupiter's atmosphere. Entered at 22:04 UTC on 7 December 1995 and operated for 57 minutes; main spacecraft entered orbit at 00:27 UTC on 8 December.{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Galileo&Display=ReadMore|archive-url=https://web.archive.org/web/20040224130249/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Galileo&Display=ReadMore|url-status=dead|archive-date=24 February 2004|title=Solar System Exploration - Galileo |publisher=NASA|accessdate=6 January 2013}} Spacecraft was deorbited on 21 September 2003, impacting Jupiter's atmosphere at 18:57:18 UTC.{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Galileo&Display=Dates|archive-url=https://web.archive.org/web/20040224124516/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Galileo&Display=Dates|url-status=dead|archive-date=24 February 2004|title=Solar System Exploration - Galileo - Dates|publisher=NASA|accessdate=6 January 2013}}
style="background-color:#cccccc;"

|rowspan="2" | –

|rowspan="2" | Ulysses

| Ulysses

| {{dts|6 October 1990}}

| {{nowrap|{{OV|103}}
STS-41 / IUS{{cite web|url=http://space.skyrocket.de/doc_sdat/ulysses.htm|title=Ulyssees|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=6 January 2013}}}}

| {{flagicon|USA}} 23px NASA/ESA

| Flyby

| {{yes|{{hs|4}}Successful}}

style="background-color:#cccccc;"

| colspan="6" |Flyby on 8 February 1992 to reach a high-inclination heliocentric orbit.{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Ulysses&Display=ReadMore|archive-url=https://archive.today/20130217144203/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Ulysses&Display=ReadMore|url-status=dead|archive-date=17 February 2013|title=Solar System Exploration - Ulysses |publisher=NASA|accessdate=6 January 2013}} Also made a distant incidental flyby on 4 February 2004{{cite web|url=http://ulysses.jpl.nasa.gov/science/Encounter.html|title=Ulysses - Encounter Trajectory|publisher=NASA Jet Propulsion Laboratory|accessdate=6 January 2013|url-status=dead|archiveurl=https://web.archive.org/web/20130216040047/http://ulysses.jpl.nasa.gov/science/Encounter.html|archivedate=16 February 2013|df=dmy-all}}

style="background-color:#cccccc;"

|rowspan="3" | –

|rowspan="3" | {{nowrap|Cassini–Huygens}}

|Cassini

|rowspan="2" | {{dts|15 October 1997}}

|rowspan="2" | {{nowrap|Titan IV(401)B Centaur-T{{cite web|url=http://space.skyrocket.de/doc_sdat/cassini.htm|title=Cassini|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=6 January 2013}}}}

|rowspan="2" | {{flagicon|USA}} 23px NASA/ESA

|rowspan="2" | Flyby

| {{yes|{{hs|4}}Successful}}

style="background-color:#cccccc;"

|Huygens lander

| {{yes|{{hs|4}}Successful}}

style="background-color:#cccccc;"

| colspan="6" | Flyby on 30 December 2000 en route to Saturn{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Cassini&Display=Dates|archive-url=https://web.archive.org/web/20040815235732/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Cassini&Display=Dates|url-status=dead|archive-date=15 August 2004|title=Solar System Exploration - Cassini - Dates|publisher=NASA|accessdate=6 January 2013}}

rowspan="2" | 6

|rowspan="2" | New Horizons

| New Horizons

| {{dts|19 January 2006}}

| {{nowrap|Atlas V 551{{cite web|url=http://space.skyrocket.de/doc_sdat/new-horizons.htm|title=New Horizons|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=6 January 2013}}}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Gravity assist. Major observation campaign from Jan-June. Flyby on 28 February 2007 (closest approach at 05:43:40{{cite web|url=http://www.dmuller.net/spaceflight/mission.php?mission=newhorizons&appear=black&mtype=scet&showimg=yes&dispwide=no|title=New Horizons Full Mission Timeline|first=Daniel|last=Muller|accessdate=6 January 2013}}) en route to Pluto.{{cite web|url=http://news.bbc.co.uk/1/hi/technology/6279423.stm|title=New Horizons targets Jupiter kick|publisher=BBC News|date=19 January 2007|accessdate=6 January 2013}} First probe to flyby Plutonian system.
rowspan="2" | 7

|rowspan="2" | Juno

| Juno

| {{dts|5 August 2011}}

| {{nowrap|Atlas V 551{{cite web|url=http://space.skyrocket.de/doc_sdat/juno.htm|title=Juno (New Frontiers 2)|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=6 January 2013}}}}

| {{flagicon|USA}} NASA

| Orbiter

| {{usually|{{hs|5}}Operational}}

colspan="6" |Entered orbit 4 July 2016. First outer planet explorer probe with solar panels.{{cite web|url=https://www.bbc.com/news/science-environment-36710768|title=Juno probe enters into orbit around Jupiter|first=Jonathan|last=Amos|publisher=BBC News|date=4 July 2016|accessdate=5 July 2016}}
rowspan="2" | 8

|rowspan="2" | Juice

| JUICE

| {{dts|14 April 2023}}

| {{nowrap|Ariane 5 ECA}}

| 23px ESA

| Orbiter

| {{enroute}}

colspan="6" |First interplanetary probe to the outer Solar System planets not launched by the United States and the first set to orbit a moon (Ganymede) other than Earth's Moon.
rowspan="2"|9

|rowspan=2| Europa Clipper

| Europa Clipper

| 14 October 2024

| Falcon Heavy

| {{flagicon|US}} NASA

|Orbiter

| {{enroute}}

colspan="6"| Jupiter orbiter with Europa flybys

Saturn

{{main|Exploration of Saturn}}

Four spacecraft have visited Saturn; Pioneer 11, Voyager 1 and Voyager 2 made flybys, while Cassini–Huygens entered orbit, and deployed a probe into the atmosphere of Titan.

{{sticky header}}

class="wikitable sortable sticky-header" style="width:100%"
colspan="2"|Mission

! Spacecraft

! Launch date

! Carrier rocket

! Operator

! Mission Type

! Outcome

rowspan="2" | 1

|rowspan="2" | Pioneer 11

| Pioneer 11

| {{dts|6 April 1973}}

| {{nowrap|Atlas SLV-3D Centaur-D1A}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |First probe to reach Saturnian system. Closest approach on 1 September 1979 at 16:31 UTC. Flew past Iapetus, Dione, Mimas, Tethys, Enceladus, Rhea and Titan at long distances. Discovered Epimetheus and Janus.
rowspan="2" | 2

|rowspan="2" | Voyager 2

| Voyager 2

| {{dts|20 August 1977}}

| {{nowrap|Titan IIIE Centaur-D1T}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Closest approach at 01:21 UTC on 26 August 1981. Flew past Iapetus, Titan, Dione, Mimas, Enceladus, Tethys and Rhea at long distances. Later flew past Uranus and Neptune.
rowspan="2" | 3

|rowspan="2" | Voyager 1

| Voyager 1

| {{dts|5 September 1977}}

| {{nowrap|Titan IIIE Centaur-D1T}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Closest approach on 12 November 1980 at 23:45 UTC. Flew past Titan, Tethys, Mimas, Enceladus and Rhea.
rowspan="3" | 4

|rowspan="3" | {{nowrap|Cassini–Huygens}}

|Cassini

|rowspan="2" | {{dts|15 October 1997}}

|rowspan="2" | {{nowrap|Titan IV(401)B Centaur-T}}

| {{flagicon|USA}} NASA

| Orbiter

| {{yes|{{hs|4}}Successful}}

Huygens

|23px ESA

| Titan lander

| {{yes|{{hs|4}}Successful}}

colspan="6" | Entered orbit 1 July 2004. First probe to orbit Saturn. Discovered seven new moons. Hyugens probe became the first spacecraft to land on Titan with the farthest landing from Earth a spacecraft ever made. It was deployed from Cassini and landed at 10:13 UTC on 14 January 2005. Mission concluded on 15 September 2017.{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Cassini|archive-url=https://web.archive.org/web/20040101115403/http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Jupiter&MCode=Cassini|url-status=dead|archive-date=1 January 2004|title=Solar System Exploration - Cassini|publisher=NASA|accessdate=6 January 2013}}

Uranus

{{main|Exploration of Uranus}}

Voyager 2 is the only spacecraft to have visited Uranus, making a single flyby as part of its grand tour of the outer planets.

class="wikitable sortable" style="width:100%"
colspan="2"|Mission

! Spacecraft

! Launch date

! Carrier rocket

! Operator

! Mission Type

! Outcome

rowspan="2" | 1

|rowspan="2" | Voyager 2

| Voyager 2

| {{dts|20 August 1977}}

| {{nowrap|Titan IIIE Centaur-D1T}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Discovered eleven moons. Flew past Miranda, Ariel, Umbriel, Titania and Oberon. Closest approach at 17:59 UTC on 24 January 1986. Later flew past Neptune.

Neptune

{{main|Exploration of Neptune}}

Voyager 2 is the only spacecraft to have visited Neptune, making a single flyby as part of its grand tour of the outer planets.

class="wikitable sortable" style="width:100%"
colspan="2"|Mission

! Spacecraft

! Launch date

! Carrier rocket

! Operator

! Mission Type

! Outcome

rowspan="2" | 1

|rowspan="2" | Voyager 2

| Voyager 2

| {{dts|20 August 1977}}

| {{nowrap|Titan IIIE Centaur-D1T}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Discovered Neptunian rings and six new moons. Flew past Galatea, Larissa, Proteus and Triton. Closest approach at 03:26 UTC on 25 August 1989

Pluto and trans-Neptunian objects

{{main|Exploration of Pluto}}

New Horizons is the only spacecraft that visited dwarf planet Pluto (in 2015) and the trans-Neptunian object 486958 Arrokoth (in 2019).

class="wikitable sortable" style="width:100%"
colspan="2"|Mission

! Spacecraft

! Launch date

! Carrier rocket

! Operator

! Mission Type

! Outcome

rowspan="2" | 1

|rowspan="2" | New Horizons

| New Horizons

| {{dts|19 January 2006}}

| {{nowrap|Atlas V (551) AV-010 + Star 48B 3rd stage}}

| {{flagicon|USA}} NASA

| Flyby

| {{yes|{{hs|4}}Successful}}

colspan="6" |Flew by Pluto in July 2015, flew past Arrokoth on 1 January 2019.

Statistics

= Major milestones =

;Legend

{{legend inline|#9EFF9E|Milestone achieved|outline=silver}}

{{legend inline|#FFC7C7|Milestone not achieved|outline=silver}}

{{legend inline|#CCE1FF|En route|outline=silver}}

† First to achieve

class="wikitable sortable"

|+ Planets

! rowspan="3" | Country/Agency

! colspan="3" | Jupiter

! colspan="3" | Saturn

! Uranus

! Neptune

Flyby

! Orbit

! Atmospheric entry

! Flyby

! Orbit

! Atmospheric entry

! Flyby

! Flyby

{{Flagicon|USA}} United States

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 10, 1973 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Galileo, 1995 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Atmospheric probe, 1995 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Cassini, 2004 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Cassini, 2017 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Voyager 2, 1986 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Voyager 2, 1989 †

23px ESA

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Ulysses, 1992

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

class="wikitable sortable"

|+ Galilean moons

! rowspan="2" | Country/Agency

! colspan="2" | Ganymede

! Callisto

! Io

! Europa

Flyby

! Orbit

! Flyby

! Flyby

! Flyby

{{Flagicon|USA}} United States

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 10, 1973 †

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 10, 1973 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 10, 1973 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 10, 1973 †

23px ESA

|style="background:#CCE1FF; text-align:center;" data-sort-value="2" | Juice, TBD 2034

|style="background:#CCE1FF; text-align:center;" data-sort-value="1" | Juice, TBD 2034

|style="background:#ECECEC; text-align:center;" data-sort-value="2" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="2" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="2" | —

class="wikitable sortable"

|+ Major Saturnian moons

! rowspan="2" | Country/Agency

! colspan="3" | Titan

! Rhea

! Iapetus

! Dione

! Tethys

! Enceladus

! Mimas

Flyby

! Orbit

! Lander

! Flyby

! Flyby

! Flyby

! Flyby

! Flyby

! Flyby

{{Flagicon|USA}} United States

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Pioneer 11, 1979 †

23px ESA

|style="background:#ECECEC; text-align:center;" data-sort-value="2" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#9EFF9E; text-align:center;" data-sort-value="1" | Huygens, 2005 †

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

|style="background:#ECECEC; text-align:center;" data-sort-value="1" | —

Future missions

class="wikitable sortable"
Mission

! Spacecraft

! Launch date

! Carrier rocket

! Operator

colspan="5" align="center" bgcolor="CornflowerBlue" | Planned missions
rowspan="2"| Dragonfly

| Dragonfly

| TBD July 2028

| Falcon Heavy

| {{flagicon|USA}} NASA

colspan="4"| Titan robotic rotorcraft
rowspan="3"| Tianwen-4

| Tianwen-4

| rowspan="2"| TBD September 2029

| rowspan="2"| Long March 5

| rowspan="2"| {{flagicon|China}} CNSA

Uranus flyby probe
colspan="4" | Jupiter and Callisto orbiter; Flyby past Uranus with mission extension planned for interstellar journey
rowspan="2" |Solar Polar Orbit Observatory

|Solar Polar Orbit Observatory

|NET 2029

|TBD

|{{flagicon|China}} CNSA

colspan="4" |Will use a Jupiter gravity assist to reach high-inclination heliocentric orbit
colspan="5" align="center" bgcolor="CornflowerBlue" | Proposed missions
rowspan="2"| IHP-1

| Shensuo

| TBD

| TBD

| {{flagicon|China}} CNSA

colspan="4"| Interstellar heliospheric probe with Jovian gravity assist; planned flybys of Jupiter and 50000 Quaoar
rowspan="2"| IHP-2

| Shensuo

| TBD

| TBD

| {{flagicon|China}} CNSA

colspan="4" | Interstellar heliospheric probe with Jovian gravity assist; planned flybys of Jupiter, Neptune, Triton and a Kuiper belt object
rowspan="3"| Uranus Orbiter and Probe

| Uranus orbiter

| rowspan="2"| NET 2031

| rowspan="2"| Falcon Heavy (expendable)

| rowspan="2"| {{flagicon|USA}} NASA

Uranus probe
colspan="4"| Uranus orbiter after a flyby of Jupiter; Uranus atmospheric probe
rowspan="2"| Enceladus Orbilander

| Enceladus Orbilander

| NET 2038

|

|{{flagicon|USA}} NASA

colspan="4"| Enceladus orbiter/lander

See also

References

{{Reflist|30em}}

{{Spacecraft by destination}}

{{Jupiter spacecraft}}

{{Saturn spacecraft}}

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{{Jupiter}}

{{Saturn}}

{{Uranus}}

{{Neptune}}

{{Pluto}} }}

Category:Outer planets

Category:Missions to the planets

Outer planets