The first man to ever take steps outside the confines of the spacecraft was Soviet cosmonaut Alexei Leonov on March 18, 1965. What at first seemed like a victory in the highly competitive Space Race ...

The world's first spacewalker was Russian. Short and stocky, quick with a grin, Alexei Leonov was the most approachable of the Soviet-era cosmonauts. Leonov left the cramped confines of his Voskhod ...

Alexei Leonov, a Soviet-era cosmonaut who was the first man to conduct a spacewalk in 1965, died in Moscow on Friday aged 85 after a long illness. The Russian space agency Roscosmos said it was ...

On his third orbit of the Earth, Ed White opened the hatch and floated out into thin air. He remained aloft, tethered to his spacecraft by a golden umbilical cord, as the span of the United States ...

Cosmonaut Aleksei Leonov during the first human spacewalk in 1965. Image: NASA On March 18, 1965, cosmonaut Aleksei Leonov exited his Voskhod 3KD spacecraft, becoming the first human in history to ...

The world's first spacewalker, Russian cosmonaut Alexei Leonov, has died at the age of 85. NASA announced Leonov's death Friday morning as astronauts Andrew Morgan and Christina Koch emerged from the ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...