page_title: 4MV
hierarchical_section_title: 4MV
caption_attribution_description: English: The Mars 3 spacecraft
context_page_description: The 4MV planetary probe is a designation for a common design used for Soviet unmanned probes to Mars and Venus. It was an incremental improvement of earlier 3MV probes and was used for Mars missions 4 to 7 and Venera missions 9 to 16. The same base design was used for some earth-orbiting space observatories.
context_section_description: The 4MV planetary probe (short for 4th-generation Mars-Venus probe) is a designation for a common design used for Soviet unmanned probes to Mars and Venus. It was an incremental improvement of earlier 3MV probes and was used for Mars missions 4 to 7 and Venera missions 9 to 16. The same base design was used for some earth-orbiting space observatories.
caption: M-71 - 3MS version
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