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 | | | A few minutes without gravity. Astronaut David R. Scott, with assistant, training for Gemini 8 extravehicular activity (EVA) in Air Force C-135 airplane, 1966. Courtesy NASA. |
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| Weightless Environment Training Facility, Building 29 |
| Neutral Buoyancy Laboratory |
| Building 9 |
| Building 32 |
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A strategy for recreating the experience of space: simulate only portions of the experience at a time. Astronauts experience aspects of weightlessness separately, for example, in training exercises on an air-bearing floor (below), in an airplane running parabolic flight patterns (the "vomit comet," above), or, more recently, underwater (bottom).
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| | Simulating free horizontal movement. Astronaut David R. Scott glides across air-bearing floor while training for Gemini 8 EVA (extravehicular activity), Building 4, 1966. Courtesy NASA. | |
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| Simulating neutral buoyancy. Astronaut Richard M. (Mike) Mullane, assisted by divers, begins underwater session in WETF (weightless environment training facility), Building 29, 1984. Courtesy NASA. | |
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