He was standing up on his seat with his hatch open while orbiting at 8,000 meters per second 188 miles over the Earth. I wish I were able to imagine the sensation of what this felt like. That is Buzz Aldrin standing up on Gemini XII, with the Agena rendezvous vehicle on the background. Agena was used as a target spaceship to test the orbital rendezvous technique that was needed to go to the Moon in the Apollo missions—a technique that Aldrin himself developed in his "Manned Orbital Rendezvous" thesis, which earned him a Doctorate of Science in Astronautics by the Massachusetts Institute of Technology. More pics via Gizmodo.
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