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05/08/1969 Mariner 7 makes its closest fly-by of Mars

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Mariner 6 and 7 - Video Learning - WizScience.com

16:32

Ask an Expert: Mariner 7: Fly-by Mars with a Camera

As part of NASA's wider Mariner program, Mariner 6 and Mariner 7 completed the first dual mission to Mars in 1969. Closest approach for Mariner 7 occurred at a distance of 3,430 kilometers above the Martian surface. This was less than half of the distance used by Mariner 4 on the previous US Mars flyby mission.
    • Essentials 

    • Launch 

    • Spaceflight 

    • Spacecraft and subsystems