The first man to ever take steps outside the confines of the spacecraft was Soviet cosmonaut Alexei Leonov on March 18, 1965.
One year after Gemini IV astronaut Edward H. White completed NASA's first spacewalk the agency prepared for a demanding ...
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America's first spacewalk

On June 3, 1965, the United States space program had a historic moment -- the first spacewalk. Astronaut Ed White completed ...