On August 21, 1965, Conrad flew into space as pilot of Gemini 5. This was the third trip by astronauts in NASA's Project Gemini. The trip lasted until August 29, 1965. Conrad made another spaceflight as command pilot (pilot in charge) of Gemini 11. This was the ninth trip by astronauts in Project Gemini. The trip lasted from September 12, 1966 to September 15, 1966.