Gemini 10 was a 1966 crewed spaceflight in NASA's Gemini program. It was the 8th crewed Gemini flight, the 16th crewed American flight, and the 24th spaceflight of all time. During the mission, flown by command pilot John Young and pilot Michael Collins, Collins became the first person to perform two extravehicular activities.
S66-34167 (21 April 1966) --- Astronauts John W. Young (right), command pilot, and Michael Collins, pilot, the prime crew of the Gemini-10 spaceflight, prepare for a Manned Altitude Test Run in the Gemini-10 spacecraft.
S66-39769 (2 July 1966) --- Astronauts John W.
Gemini X preflight presser July 2, 1966
S66-42702 (12 July 1966) --- Gemini-10 prime crew, astronauts John W. Young (left), command pilot, and Michael Collins (right), pilot, check equipment in the White Room atop Pad 19 where they participated in a Simultaneous Launch Demonstration.
S66-42737 (18 July 1966) --- In the White Room atop the Gemini launch vehicle, astronauts Michael Collins (left), pilot, and John W. Young (right), command pilot, prepare to enter the Gemini-10 spacecraft.