5 Free Photos of Gravity Train

Astronaut Edwin E. Aldrin Jr., pilot for the Gemini-12 spaceflight, prepares to take a rest position during underwater zero-gravity training. Oct 29th, 1966.
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US Navy 090324-N-2959L-189 Lt. Cmdr. Chris Cassidy smiles after donning his space suit during zero gravity training at the Neutral Buoyancy Lab (NLB)
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Architecture old bridge historically
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