Vesta Mission - Cancellation

Cancellation

A combination of factors, probably including changing Franco-Soviet relations, the partial failure of the Phobos mission, financial troubles and the disbanding of the Soviet Union, didn't allow for the project to advance beyond the planning phase.

USSR space probes

Earth satellites	Kosmos Molniya Zenit Bion GLONASS Meteor

Space observatories	Orion Astron Granat Prognoz RELIKT-1

Moon exploration	Luna Zond program

Venus	Venera Vega

Mars	Mars Fobos

Spacecraft missions to Mars

Present

Orbiters	Mars Express Mars Reconnaissance Orbiter 2001 Mars Odyssey

Rovers	Curiosity Opportunity

Past

Flybys	Dawn Mariner 3* Mariner 4 Mariner 6 Mariner 7 Mars 1 Mars 1M No.1* Mars 1M No.2* Mars 2MV-4 No.1* Mars 4 Mars 6 Mars 7 Rosetta Zond 2 Zond 3

Orbiters	Fobos-Grunt/Yinghuo-1 Kosmos 419* Mariner 8* Mariner 9 Mars 2 Mars 2M No.521* Mars 2M No.522* Mars 3 Mars 4 Mars 5 Mars 96* Mars Climate Orbiter Mars Global Surveyor Mars Observer Nozomi Phobos 1 Phobos 2 Viking 1 Viking 2

Landers	Beagle 2 Mars 2 Mars 2MV-3 No.1* Mars 3 Mars 6 Mars 7 Mars 96* Mars Pathfinder Mars Polar Lander/Deep Space 2 Phoenix Viking 1 Viking 2

Rovers	Prop-M Sojourner Spirit

Planned

Mangalyaan
MAVEN
InSight
ExoMars
Mars One
Inspiration Mars
Unnamed 2020 mission

Proposed

ARES
BOLD
China mission
Mars-Aster
Mars Geyser Hopper
Mars-Grunt
Mars sample return mission
MELOS
MetNet
Northern Light
Red Dragon
SCIM
Sky-Sailor

Cancelled

Astrobiology Field Laboratory
Beagle 2: Evolution
Mars 4NM
Mars 5NM
Mars 5M (Mars-79)
Mars Astrobiology Explorer-Cacher
Mars Surveyor Lander
Mars Telecommunications Orbiter
NetLander
Vesta
Voyager

* Failed at launch

Spacecraft missions to Venus

Flybys	Venera 1 Mariner 2 Zond 1 Venera 2 Mariner 5 10 Venera 11 12 13 14 Vega 1 2 Galileo Cassini–Huygens MESSENGER IKAROS Shin-en Akatsuki

Orbiters	Venera 9 10 Pioneer Venus Orbiter Venera 15 16 Magellan Venus Express

Descent probes	Venera 3 4 5 6 Pioneer Venus Multiprobe

Landers	Venera 7 8 9 10 11 12 13 14 Vega 1 2 Pioneer Venus Day Probe

Balloon probes	Vega 1 2

Future missions	Venera-D Venera-Glob

Other missions	Venus Entry Probe Venus In-Situ Explorer Kosmos 482

See also	Colonization of Venus List of artificial objects on Venus Manned Venus Flyby TMK-Mavr

Bold italics indicates active missions