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Summary
DescriptionMariner 10 model.jpg
English: First spacecraft to use the gravitational pull of one planet (Venus) to reach another (Mercury). Launched November 3, 1973, reached Venus February 1974, and visited Mercury in March and September 1974 and March 1975.
Taken at the National Air and Space Museum Steven F. Udvar-Hazy Center: James S. McDonnell Space Hangar in Dulles, VA.
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