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  1. Copilot Answer
    Design and trajectory

    Mariner 10 was the first mission to use a gravity assist from one planet (in this case, Venus) to reach another planet. It … See more

    Instruments

    Mariner 10 conducted seven experiments at Venus and Mercury. Six of these experiments had a dedicated scientific instrument to collect data. The experiments and instruments were designed by research laboratorie… See more

    Mission typePlanetary exploration
    OperatorNASA / JPL
    COSPAR ID1973-085A
    SATCAT no.6919
    Mission profile

    Boeing finished building the spacecraft at the end of June 1973, and Mariner 10 was delivered from Seattle to JPL's headquarters in California, where JPL comprehensively tested the integrity of the spacecraft … See more

    End of mission

    With its maneuvering gas just about exhausted, Mariner 10 started another orbit of the Sun. Engineering tests were continued until 24 March 1975, when final depletion of the nitrogen supply was signaled b… See more

    Discoveries

    During its flyby of Venus, Mariner 10 discovered evidence of rotating clouds and a very weak magnetic field. Using a near-ultraviolet filter, it photographed Venus's chevron clouds and performed other atmosphericSee more

    Mariner 10 Commemoration

    In 1975, the US Post Office issued a commemorative stamp featuring the Mariner 10 space probe. The 10-cent Mariner 10 commemorative stamp was issued on 4 April 1975, at Pasadena, California. See more

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