December 15, 1965

In a first for the US space program, the crews of Gemini 6 and Gemini 7 rendezvous in space. Unlike the Soviets who had earlier managed to get two spacecraft in close proximity to one another in orbit, the Gemini 6 crew of Navy Capt. Walter Schirra and USAF Maj. Tom Stafford maneuver to within four inches of Gemini 7.