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Mercury-Atlas 6
Mercury-Atlas 6 (MA-6) was the third human spaceflight for the U.S. and part of Project Mercury. Conducted by NASA on February 20, 1962, the mission was piloted by astronaut John Glenn, who performed three orbits of the Earth, making him the first U.S. astronaut to orbit the Earth.〔The Soviet Union had already placed two cosmonauts into orbit; Yuri Gagarin on Vostok 1 on April 12, 1961 and Gherman Titov on Vostok 2 on August 6, 1961. The two previous U.S. astronauts in space, Alan Shepard and Gus Grissom had flown sub-orbital missions.〕
The Mercury spacecraft, named ''Friendship 7'', was carried to orbit by an Atlas LV-3B launch vehicle lifting off from Launch Complex 14 at Cape Canaveral, Florida. After four hours and 56 minutes in flight the spacecraft re-entered the Earth's atmosphere, splashed down in the Atlantic Ocean and was safely taken aboard the USS ''Noa''.
The event was named an IEEE Milestone in 2011.
==Crew==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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