On June 3, 1965, 120 miles above the Earth, Major Edward H.
White II opened the hatch of the Gemini 4 and stepped out of
the capsule, becoming the first American astronaut to walk
in space.
Attached to the craft by a 25-foot tether and controlling his
movements with a hand-held oxygen jet-propulsion gun,
White remained outside the capsule for just over 20 minutes.
White had been preceded as a space walker, by Soviet
cosmonaut Aleksei A. Leonov, who on March 18, 1965,
was the first man ever to walk in space.
Astronaut Ed White was the first American to walk in space.






