Encyclopedia Astronautica
Gemini Observatory



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Gemini Observatory
Credit: McDonnell Douglas
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Gemini Variants
Modest modifications of Gemini proposed by McDonnell Douglas as a follow-on to the basic program (927 x 723 pixel version).
Credit: McDonnell Douglas
American manned spacecraft. Study 1966. Proposed version of Gemini for low-earth orbit solar or stellar astronomy. This would be launched by a Saturn S-IB. It has an enlarged reentry module which seems to be an ancestor of the 'Big Gemini' of 1967.

Crew Size: 2.

Gross mass: 18,500 kg (40,700 lb).
Height: 8.77 m (28.77 ft).

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Associated Countries
See also
  • Gemini The Gusmobile could have conquered space - faster, better cheaper. An endless number of Gemini derivatives would have performed tasks in earth orbit, and flown around and landed on the moon. Could the US have won the moon and space station races at a fraction of the expense? Browse through the many might-have-been Geminis! More...
  • US Space Stations Wernher von Braun brought Noordung's rotating station design with him from Europe. This he popularized in the early 1950's in selling manned space flight to the American public. By the late 1950's von Braun's team favoured the spent-stage concept - which eventually flew as Skylab. By the mid-1960's, NASA was concentrating on modular, purpose-built, zero-G stations. These eventually flew as the International Space Station. More...

Associated Launch Vehicles
  • Saturn I American orbital launch vehicle. Von Braun launch vehicle known as 'Cluster's Last Stand' - 8 Redstone tanks around a Jupiter tank core,powered by eight Jupiter engines. Originally intended as the launch vehicle for Apollo manned circumlunar flights. However it was developed so early, no payloads were available for it. More...
  • Saturn IB American orbital launch vehicle. Improved Saturn I, with uprated first stage and Saturn IVB second stage (common with Saturn V) replacing Saturn IV. Used for earth orbit flight tests of Apollo CSM and LM. More...

Associated Manufacturers and Agencies
  • NASA American agency overseeing development of rockets and spacecraft. National Aeronautics and Space Administration, USA, USA. More...
  • McDonnell American manufacturer of spacecraft. McDonnell, St Louis, USA. More...

Bibliography
  • Advanced Gemini Spacecraft, Briefing, McDonnell Douglas, ca. 1967.

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