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.

For planned missions to the Moon see the dedicated list of missions to the Moon, with its section future missions. 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]
Martian Moons eXploration	2026	Martian moon sample return mission	[3]
Venus Life Finder	NET summer 2026	Private Venus atmospheric probe by Rocket Lab and MIT	[4]
DESTINY+	2028	Asteroid 3200 Phaethon flyby	[5]
Dragonfly	July 2028	Titan rotorcraft lander	[6][7]
Rosalind Franklin	2028	Mars rover, ExoMars	[8][9]
Tianwen-3	2028	Mars sample return mission	[10]
MBR Explorer	2028	Flyby mission to seven asteroids	[11]
Venus Orbiter Mission	2028	Venus orbiter	[12]
Tianwen-4	September 2029	Jupiter and Callisto orbiter, Uranus flyby	[13][14]
Solar Polar Orbit Observatory	2029	High-inclination solar orbiter, Jupiter flyby	[15]
Comet Interceptor	2029	Flyby of an Oort Cloud comet	[16][17][18]
VERITAS	2029	Venus orbiter	[19]
EnVision	2031	Venus orbiter	[20]
Mangalyaan-2	2031	Mars orbiter and lander	[21][22]
DAVINCI	2032	Venus orbiter and atmospheric probe	[23]

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	[24][25]
NASA-ESA Mars Sample Return	2027[needs update]	ESA	2023	Mars sample return mission	[26]
Ramses	2028	ESA	2024	Asteroid orbiter	[27][28]
Tera-hertz Explorer	2020s[citation needed]			Mars orbiter and lander	[29][30]
Venera-D	2031	Russian Space Research Institute	2023	Venus orbiter and lander	[31]
Uranus Orbiter and Probe	NET 2031	NASA	2023	Uranus orbiter and probe	[32][33]
Venus atmospheric sample return	2033	DSEL/CNSA	2025	Return atmospheric samples from Venus	[34]
Interstellar Probe	2036	NASA	2022	"Voyager on steroids"	[35]
Enceladus Orbilander	2038	NASA	2023	Enceladus orbiter/lander	[36]
Mars Research Station for ISRU	2038	DSEL/CNSA	2025	Mars surface research station for In-Situ Resource Utilization (ISRU)	[34]
Probe to Neptune and Triton	2039	DSEL/CNSA	2025	Exploration of Neptune and its moon Triton	[34]

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)
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.	[37]
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.	[38]

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