First person to walk in space
-
Alex Shepherd
-
Leo Vosnov
-
Dmitri Leonov
-
Alexi Leonov
D
Correct answer
Explanation
Alexei Leonov was the first human to conduct a spacewalk on March 18, 1965, during the Voskhod 2 mission. He spent 12 minutes outside the spacecraft, proving humans could work in the vacuum of space. The name 'Leonov' in option D is the correct spelling.