page_title: List of United States Marine Corps astronauts
section_title: Project Mercury
hierarchical_section_title: List of United States Marine Corps astronauts / Project Mercury
caption_attribution_description: English: John Glenn Source: http://www.tecom.usmc.mil/HD/images/Whos_Who/Hi_Res/GlennJH.jpg from http://www.tecom.usmc.mil/HD/Whos_Who/Glenn_JH.htm License: Information presented on this site is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credits is requested. - http://www.usmc.mil/marinelink/ind.nsf/privacy
context_page_description: This is a list of United States Marine Corps members who have served as NASA astronauts.
context_section_description: Project Mercury (1959–1963) was the first human spaceflight program of the  United States. It ran from 1959 through 1963 with the goal of putting a human in orbit around the Earth. The Mercury-Atlas 6 flight on February 20, 1962, piloted by Lieutenant Colonel John Glenn, was the first Mercury flight to achieve this goal. Glenn was the only Marine to fly in the Mercury program, and also flew aboard the Space Shuttle Discovery in 1998. USAF astronaut Gordon Cooper was a former Marine, having previously served as an enlisted Infantryman before receiving his Air Force commission.
caption: Col. John Glenn, the first Marine astronaut
exif: {}