On Feb. 20, 1962, NASA astronaut John Glenn became the first American to orbit the Earth. See behind-the-scenes shots of his historic flight and the training he underwent to prepare for it.
In Photos: How John Glenn Made History on 1st US Orbital Flight Mercury-Atlas 6
SPACE.com - 20 Feb 2018 09:10
On Feb. 20, 1962, NASA astronaut John Glenn became the first American to orbit the Earth. See behind-the-scenes shots of his historic flight and the training he underwent to prepare for it.
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