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Gemini 4 (officially Gemini IV) [3] was the second crewed spaceflight in NASA 's Project Gemini, occurring in June 1965. It was the tenth crewed American spaceflight (including two X-15 flights at altitudes exceeding 100 kilometers (54 nmi)). Astronauts James McDivitt and Ed White circled the Earth 66 times in four days, making it the first US ...
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 ...
The Manned Space Flight Network (abbreviated MSFN, pronounced " misfin ") was a set of tracking stations built to support the American Mercury, Gemini, Apollo, and Skylab space programs. There were two other NASA space communication networks at the time, the Spacecraft Tracking and Data Acquisition Network (STADAN) for tracking satellites in ...
Launch status check. A launch status check, also known as a "go/no go poll" and several other terms, occurs at the beginning of an American spaceflight mission in which flight controllers monitoring various systems are queried for operation and readiness status before a launch can proceed. For Space Shuttle missions, in the firing room at the ...
Mercury Control Center. The Mercury Control Center (also known as Building 1385 or simply MCC) provided control and coordination of all activities associated with the NASA's Project Mercury flight operation as well as the first three Project Gemini flights (the first two had no crew). It was located on the Cape Canaveral Space Force Station ...
Gemini. The Agena Target Vehicle (/ əˈdʒiːnə /; ATV), also known as Gemini-Agena Target Vehicle (GATV), was an uncrewed spacecraft used by NASA during its Gemini program to develop and practice orbital space rendezvous and docking techniques, and to perform large orbital changes, in preparation for the Apollo program lunar missions. [1]
Ed White became the first American to make an extravehicular activity (EVA, or "space walk"), on June 3, 1965, during Gemini 4. [36] Gemini 6A and 7 accomplished the first space rendezvous on December 15, 1965. [37] Gemini 8 achieved the first space docking with an uncrewed Agena Target Vehicle on March 16, 1966.
Buzz Aldrin, the second man on the moon, performed two during the 1966 flight of Gemini 12. Astronaut Dick Gordon, of Gemini 11, famously fell asleep during a stand-up EVA as he was climbing back ...