List of Gemini astronauts
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The Gemini astronauts were sixteen pilots who flew in Project Gemini, NASA's second human spaceflight program, between projects Mercury and Apollo. Carrying two astronauts at a time, a senior Command Pilot and a junior Pilot, the Gemini spacecraft was used for ten crewed missions. Four of the sixteen astronauts flew twice.
Gemini was the second phase in the United States space program's larger goal of "landing a man on the Moon and returning him safely to the Earth" before the end of the 1960s, as proposed by president John F. Kennedy. As an intermediary step, Gemini afforded its astronauts the opportunity to gain critical spaceflight experience, performing tasks required in the later Apollo program which fulfilled this objective. Such tasks included rendezvous or station-keeping with other craft, docking, habitation in space over the course of several days, and flying spacecraft with more than one crew member. Importantly, most individuals who flew as Gemini astronauts returned to space as key personnel in the Apollo program, bringing with them their first-hand experience of the operations carried out during Gemini. Among the Gemini astronauts, six later walked on the Moon, another five flew to the Moon without landing, and two participated in Low Earth orbit Apollo missions. Gus Grissom and Ed White were killed in the Apollo 1 disaster, and former Mercury astronaut Gordon Cooper did not perform any further spaceflights.
Astronaut participation in Project Gemini was also a strong predictor for future achievement during the Apollo Program:
- Every Apollo mission commander, including Gus Grissom and with the exception of Alan Shepard, was a Gemini veteran.
- All three crew members of Apollo 11, the first lunar landing-Neil Armstrong, Michael Collins and Buzz Aldrin-were Gemini veterans.
- All three of the men who flew to the Moon twice-Jim Lovell, John Young and Gene Cernan-were Gemini veterans.
- With the exception of Elliot See, every member of NASA's second Astronaut Group—the class of nine men selected following the Mercury Seven—flew as a Gemini astronaut.
|Mission||Command Pilot||Crew Portrait||Pilot|
|Gemini 3||Gus Grissom||Second and last||1||USAF||John Young||First of six||2||USN|
|Gemini 4||James McDivitt||First of two||2||USAF||Ed White||First and only||2||USAF|
|Gemini 5||Gordon Cooper||Second and last||1||USAF||Pete Conrad||First of four||2||USN|
|Gemini 7||Frank Borman||First of two||2||USAF||Jim Lovell||First of four||2||USN|
|Gemini 6A||Wally Schirra||Second of three||1||USN||Tom Stafford||First of four||2||USAF|
|Gemini 8||Neil Armstrong||First of two||2||USN||David Scott||First of three||3||USAF|
|Gemini 9A||Tom Stafford||Second of four||2||USAF||Gene Cernan||First of three||3||USN|
|Gemini 10||John Young||Second of six||2||USN||Michael Collins||First of two||3||USAF|
|Gemini 11||Pete Conrad||Second of four||2||USN||Richard Gordon||First of two||3||USN|
|Gemini 12||Jim Lovell||Second of four||2||USN||Buzz Aldrin||First of two||3||USAF|
|Later walked on the Moon as an Apollo astronaut|
|Later flew to the Moon as an Apollo astronaut, without landing|
|Later flew a low-Earth orbit mission as an Apollo astronaut|
|Performed no later spaceflights|
|Later killed in the Apollo 1 disaster|
- Sixteen astronauts filled twenty crew positions, over ten two-man missions. Young, Conrad, Lovell and Stafford each made their first spaceflights as junior Pilots before being promoted to Command Pilots on the program's last four missions.