Gemini-Titan (GT)-10 - Weightlessness Training - Wright-Patterson AFB, Dayton, OH

S66-28583 (1 April 1966) --- The Gemini-10 prime crew undergoes zero-gravity egress training aboard a KC-135 Air Force plane. Astronaut John W. Young, command pilot, is on left. On the right is astronaut Michael Collins, pilot. The airplane, flying a parabolic curve, creates a weightless environment as a training exercise in preparation for spaceflight Photo credit: NASA