September 12, 1966 Gemini 11
Gemini 11 blasted off on September 12, 1966, piloted by Charles Conrad, Jr., and Richard F. Gordon, Jr. Within one orbit of the earth, the craft rendezvoused with an Agena booster. The two then set a new height record by blasting to a height of 853 miles. On the second day of the flight, Gordon undertook a space walk. Unfortunately, like Cernan on Gemini 9, Gordon fogged up his visor and he was forced to cut the spacewalk short.