Astronaut White called returning to the spacecraft the 'saddest moment' of his life
Astronaut Ed White became the first American to walk in space on this day in history, June 3, 1965.
White, an engineer, a Lieutenant Colonel in the U.S. Air Force, a test pilot and NASA astronaut, made the spacewalk — technically known as "Extravehicular Activity" or "EVA" — while serving as the pilot on the Gemini 4 mission.