How the First Spacewalk Nearly Ended in Disaster - Alexei Leonov Voskhod 2
The First Man to Walk in Space Almost Got Stuck Out There
Rare color footage of first spacewalk, Alexey Leonov, March 18, 1965
Soviet cosmonaut Alexey Leonov became the first human to leave the spacecraft in a specialized spacesuit. The extravehicular activity took 12 minutes. It did not go well. His spacesuit ballooned. He was angered by heatstroke. His body temperature increased by 1.8 °C. Leonov said he was up to his knees in sweat.