Mariner 10 was the seventh successful launch in the Mariner series, the first spacecraft to use the gravitational pull of one planet (Venus) to reach another (Mercury), and the first spacecraft mission to visit two planets. Mariner 10 was the first (and as of 2003 the only) spacecraft to visit Mercury.
Freeware Windows viewer for the Mariner 10 images.
NASA History Office presents an online book, with diagrams and photos, telling the detailed story of the Mariner 10 mission.
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