On March 18, 1965 Soviet cosmonaut Alexey Leonov conducted  humanity's first ever spacewalk. While taking part in the Voskhod 2 flight he conducted extra-vehicular activity, which lasted 12 minutes and nine seconds. Leonov moved five meters away from the capsule. The first-ever spacewalk will remain in history as one of the brightest pages in the history of space exploration. How the human exploration of outer space developed - in photo gallery by TASS.