Astronaut John Glenn enters the Mercury spacecraft, Friendship 7, prior to the launch of Mercury-Atlas 6 (MA-6) on Feb. 20, 1962.
Astronaut John Glenn enters the Mercury spacecraft, Friendship 7, prior to the launch of Mercury-Atlas 6 (MA-6) on Feb. 20, 1962. The MA-6 mission was the first crewed orbital flight and Glenn became the first American to orbit the Earth during the three-orbit, five-hour MA-6 mission.
Image Credit: NASA