2K views · 51 reactions | The longest spacewalk ever by American astronauts took place in 2001 and lasted almost nine hours. Do you know how long the very first U.S. spacewalk lasted? | NASA's Johnson Space Center | Facebook

On June 3, 1965, Ed White became the first American to walk in space. The Gemini IV astronaut spent more than 20 minutes outside of the spacecraft, though his maneuvering unit ran out of gas just three minutes into his walk. Without it, ‘White maneuvered by twisting his body and tugging on the umbilical cord,’ the line that connected him to the spacecraft, NASA says. The first American spacewalk was conducted less than three months after a Soviet cosmonaut became the first person to conduct a sp