NASA launched the last space probe in the Mariner Program, Mariner 10.
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A US National Reconnaissance Office mission launched on a reused SpaceX booster for the first time.
The Soviet Union's ill-fated Soyuz 11 mission was launched from the Baikonur Cosmodrome.
NASA's Columbia Space Shuttle landed at the Kennedy Space Center, concluding mission STS-90.
Blue Origin's New Shepherd rocket successfully launched on its 14th flight from Launch Site One, Texas.
The Soviet Space Agency Launches Vostok 3.
