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How the Historic First Spacewalk Worked (Infographic)

On March 18, 1965, cosmonaut Alexei Leonov became the first person ever exit a space vehicle and take a so-called "spacewalk." The Voskhod ("Sunrise") was a modifed Vostok capsule such as was used by Yuri Gagarin. The 16.4-foot (5 meters) Voskhod carried two or three cosmonauts for up to 14 days in Earth orbit.

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