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American astronaut John Glenn (1921-2016) entering the Friendship 7 spacecraft prior to the launch of the Mercury 6 mission on 20 February 1962. This was the first American mission to put a human in Earth orbit, the Soviets had previously placed a cosmonaut in orbit on 12 April 1961. The mission was successful and Glenn completed three orbits in 4 hours and 55 minutes.
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