Aleksei Leonov's First Spacewalk

JUN 04 1965 · 06:00

On March 18, 1965, Cosmonaut Aleksei Leonov became famous after performing the world's first walk in space. "Outside the Spacecraft: 50 Years of Extra-vehicular Activity" is on view at the Museum in Washington, DC January 8 through June 8, 2015. See the exhibition online at http://airandspace.si.ed