As the Soviet Vostok 1 spaceflight began its descent back to Earth in April of 1961, cosmonaut Yuri Gagarin officially became the first human in space. However, in only a matter of seconds, his module ...

While preparing for the first human-crewed Vostok mission, 27-year-old Yuri Gagarin rose to the top of his class thanks to ...

The photograph taken by Lunar Orbiter 1 Aug. 23, 1966, of a crescent Earth above the lunar horizon, along with the digitized and enhanced version released Nov. 13, 2008, by the Lunar Orbiter Image ...

This is a one-third scale model of the spacecraft that carried Yuri Gagarin, a Soviet pilot, into space making him the first person to orbith the Earth on April 12, 1961. The Vostok 3KA spacecraft ...