Edward White during NASA’s Gemini 4 mission. (Photo credit: Commander James McDivitt. Source: time.com.)

Edward H. White II became the first U.S. astronaut to walk in space on this day in 1965. White was chosen to join James A. McDivitt on the four-day orbital flight of Gemini 4. White was often called the most physically fit astronaut and showed his prowess on June 3, during the third orbit, “walking” through space for 21 minutes with the assistance of a maneuvering unit. White so enjoyed his space-walk that when McDivitt called him to come back in, he replied, “I’m coming back in…and it’s the saddest moment of my life.”




Life Magazine: “America’s First Space Walk”
NASA Biography: Edward H. White II
Encyclopedia Britannica: Edward H. White II (American astronaut)