Stock Photo - Astronaut Edwin E. Aldrin Jr., prime crew pilot of the Gemini-12 spaceflight, undergoes zero-gravity ingress and egress training aboard an Air Force KC-135 aircraft. He practices using camera equipment.

Stock Photo: Astronaut Edwin E. Aldrin Jr., prime crew pilot of the Gemini-12 spaceflight, undergoes zero-gravity ingress and egress training aboard an Air Force KC-135.

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