elijah: Photograph taken from Mercury-Atlas 6, 20th February 1962.
Also known as Friendship 7, MA-6 was the first orbital human spaceflight achieved by the United States. The human in question, John Glenn (1921-), completed 3 orbits during his 5 hour flight.
This photograph is captioned “unclear”, but I believe the bright arc at right is the edge of the Earth. The vivid wash of colour probably arises from a light leak inside the camera - that, or John Glenn was an unrecognized proponent of the soft space grunge aesthetic.