During the 1962 Friendship 7 mission, John Glenn experiences weightlessness.
Credit: NASA/Chris Cohen.
In this historical photo from the U.S. space agency, Astronaut John Glenn photographed in space by an automatic sequence motion picture camera during his flight on "Friendship 7."
Glenn was in a state of weightlessness traveling at 17,500 mph as these pictures were taken.
Each weekday, SPACE.com looks back at the history of spaceflight through photos (archive).