IN SPACE - MARCH 18: The astonaut Alexei LEONOV floating in space for ten minutes, linked with Vostok 2 spaceship only by an umbilical cord. (Photo by Keystone-France/Gamma-Keystone via Getty Images)
IN SPACE - MARCH 18: The astonaut Alexei LEONOV floating in space for ten minutes, linked with Vostok 2 spaceship only by an umbilical cord. (Photo by Keystone-France/Gamma-Keystone via Getty Images)