On March 18, 1965, the Soviet spacecraft Voshkod-2 launched with two cosmonauts on board, Alexei Leonov and Pavel Belyayev. They had the important mission of accomplishing mankind’s first spacewalk ...

NASA is preparing to conduct its first spacewalk at the International Space Station (ISS) in nearly a year, ending an unusually long break for the activity. Truth be told, NASA had a spacewalk planned ...

In this photo provided by NASA, astronaut Ed White performs the United States' first spacewalk on June 3, 1965, during the Gemini 4 mission. James McDivitt / AP The world’s first spacewalker was ...