Mariner 69: mission and targets

Project start

February 24, 1969

Declared end

December 28, 1970

The start the archive declares is the start of the project, not the launch, and an end it does not declare does not mean the mission is still running.

Targets you can open in 3D:

• Mars

A declared target is what the archive files the mission’s data under, not a record of observation.

The Mariner 69 mission involved two uncrewed NASA spacecraft, Mariner 6 and Mariner 7, which completed the first dual mission to Mars in 1969 under the Mariner program. Mariner 6 launched from Launch Complex 36B and Mariner 7 from Launch Complex 36A at Cape Canaveral Air Force Station. Both spacecraft flew over Mars' equator and south polar regions, analyzing the atmosphere and surface using remote sensors. They recorded and relayed hundreds of images back to Earth. The mission aimed to study Mars' surface and atmosphere during close flybys, laying the groundwork for future investigations, particularly the search for extraterrestrial life. Additionally, it aimed to develop and demonstrate technologies needed for future Mars missions. Mariner 6 also provided valuable experience and data to aid the Mariner 7 encounter five days later.

Quoted in English, as the archive publishes it, read on October 4, 2026.

Identifier in the archive, which is its citation: urn:nasa:pds:context:investigation:mission.mariner69

NASA Planetary Data System, PDS Registry, investigation context products. Dates and targets read on September 29, 2026; how to cite the archive: https://pds.nasa.gov/datastandards/citing/

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