List of proposed Solar System probes

This is a list of proposed space probes that are planned to focus on the exploration of the Solar System, ordered by date of spacecraft launch. Launched probes are in the List of Solar System probes and the List of active Solar System probes.

Planned or scheduled missions

Mission name	Launch date	Description	Ref(s)
EscaPADE	Spring 2025	Two Mars orbiters	[1]
Tianwen-2	May 2025	Asteroid 469219 Kamoʻoalewa sample return, comet 311P/PanSTARRS orbiter	[2]
Artemis II	April 2026	4-person lunar flyby	[3] [4]
Martian Moons eXploration	2026	Martian moon sample return mission	[5]
Chang'e 7	2026	Lunar south pole lander, rover and flying probe	[6]
Venus Life Finder	NET summer 2026	Private Venus atmospheric probe by Rocket Lab and MIT	[7]
Lunar Polar Exploration Mission	2026-2028	Lunar lander and rover	[8]
Chandrayaan-4	2027	Lunar sample return mission	[9]
Artemis III	Mid 2027	4-person lunar flyby, 2-person lunar landing	[3] [10]
Luna 26	2027	Lunar orbiter	[11]
DESTINY+	2028	Asteroid 3200 Phaethon flyby	[12]
Dragonfly	July 2028	Titan rotorcraft lander	[13] [14]
Rosalind Franklin	2028	Mars rover, ExoMars	[15] [16]
Luna 27	2028	Lunar lander	[11]
Tianwen-3	2028	Mars sample return mission	[17]
MBR Explorer	2028	Flyby mission to seven asteroids	[18]
Venus Orbiter Mission	2028	Venus orbiter	[19]
Tianwen-4	September 2029	Jupiter and Callisto orbiter, Uranus flyby	[20] [21]
Solar Polar Orbit Observatory	2029	High-inclination solar orbiter, Jupiter flyby	[22]
Comet Interceptor	2029	Flyby of an Oort Cloud comet	[23] [24] [25]
VERITAS	2029	Venus orbiter	[26]
EnVision	2031	Venus orbiter	[27]
Mangalyaan-2	2031	Mars orbiter and lander	[28] [29]
DAVINCI	2032	Venus orbiter and atmospheric probe	[30]

Proposed missions

Mission name	Preliminary launch date estimate			Description	Ref(s)
	Estimated launch date	Estimate by	Estimate as of
Shensuo (Interstellar Express)	2024[ needs update ]	Scientia Sinica Informationis	2019	"Voyager-like" mission to outer planets	[31] [32]
Beresheet 2	2025	Ramon.Space	2022	Lunar lander	[33]
NASA-ESA Mars Sample Return	2027[ needs update ]	ESA	2023	Mars sample return mission	[34]
Ramses	2028	ESA	2024	Asteroid orbiter	[35] [36]
Tera-hertz Explorer	2020s[ citation needed ]			Mars orbiter and lander	[37] [38]
Venera-D	2031	Russian Space Research Institute	2023	Venus orbiter and lander	[39]
Luna 28	2030	Roscosmos	2024	Lunar sample return mission	[40]
Uranus Orbiter and Probe	NET 2031	NASA	2023	Uranus orbiter and probe	[41] [42]
Interstellar Probe	2036	NASA	2022	"Voyager on steroids"	[43]
Enceladus Orbilander	2038	NASA	2023	Enceladus orbiter/lander	[44]

Suspended missions

The following missions were suspended or cancelled because of political, budgetary, or other reasons. The spacecraft were already assembled at the time of suspension/cancellation, so these missions can be resumed.

Mission name	Cancellation date	Description	Status and reason	Ref(s)
VIPER	2024	Lunar rover	"NASA stated cost increases, delays to the launch date, and the risks of future cost growth as the reasons to stand down on the mission." NASA announced they would consider "expressions of interest" from industry to use the "VIPER rover system at no cost to the government". In October 2024, VIPER passed all pre-launch tests.	[45] [46]
Janus	2023	Dual asteroids probe	Was expected to be a secondary payload on the Psyche launch. After the delay, it was assessed that Janus wouldn't be able to reach the required trajectory. Both spacecraft were placed into long-term storage.	[47]
Kazachok	2022	Mars lander	Originally part of the joint ExoMars mission with ESA, planned to deliver Rosalind Franklin rover. Mission was cancelled because of the Russian invasion of Ukraine in 2022. Spacecraft was returned to Roscosmos; officials stated that they will launch it without the rover, but no date was given.	[48]

See also

• Timeline of Solar System exploration
• List of space telescopes#Future launches
• List of proposed space telescopes
• List of missions to the Moon#Future missions
• List of missions to Venus#Future missions
• List of missions to Mars#Future missions
• List of missions to the outer planets#Future missions
• List of minor planets and comets visited by spacecraft#Future visits
• List of objects at Lagrange points#Future and proposed missions
• List of heliophysics missions#Proposed missions

References

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