Gus Grissom was the first man to return to space and was the second American to fly in space twice, who was the first?
Joe Walker
Neil Armstrong
Buzz Aldrin
Michael Collins
Answer
Joe Walker was the first American to fly in space twice. He made his first spaceflight on the Gemini 6A mission in December 1965, and his second spaceflight on the Gemini 12 mission in November 1966. Walker was also the first American to perform a spacewalk, doing so during the Gemini 12 mission.
Blast off with Gus Grissom: Journey through the Life of an American Astronaut