Mariner 10

Mariner 10 ProbeLaunched November 3rd, 1973, the Mariner 10 probe was to fly past both Venus and Mercury. The Venus Flyby took place on February 5th, 1974 and was meant to test some of the data recieved on previous Mariner missions (2 & 5). After Venus it was on to Mercury where it made flybys on March 29th, 1974; September 21st, 1974; & March 16th, 1975. Taking over 2,800 photos the craft mapped about 45% of the planet's surface. Learn more on the NASA Mariner 10 page.

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