Editing Soviet space program (section)

===Interplanetary projects===

====Mars missions====
* Heavy rover [[Mars 4NM]] was going to be launched by the abandoned [[N1 (rocket)|N1]] launcher between 1974 and 1975.
* Mars [[sample return mission]] [[Mars 5NM]] was going to be launched by a single N1 launcher in 1975.
* Mars sample return mission [[Mars 5M]] or (Mars-79) was to be double launched in parts by Proton launchers, and then joined in orbit for flight to Mars in 1979.{{Citation needed|date=January 2023}}

====Vesta====
The [[Vesta mission]] would have consisted of two identical double-purposed interplanetary probes to be launched in 1991. It was intended to fly-by Mars (instead of an early plan to Venus) and then study four asteroids belonging to different classes. At [[4 Vesta]] a penetrator would be released.

====Tsiolkovsky====
The Tsiolkovsky mission was planned as a double-purposed deep interplanetary probe to be launched in the 1990s to make a "sling shot" flyby of [[Jupiter]] and then pass within five or seven radii of the [[Sun]]. A derivative of this spacecraft would possibly be launched toward [[Saturn]] and beyond.<ref>{{cite journal|last1=Zak|first1=Anatoly|title=Planetary spacecraft|journal=Russian Space Web |date=February 5, 2013|url=http://www.russianspaceweb.com/spacecraft_planetary_plans.html|access-date=May 13, 2016}}</ref>