June 1, 2011
Astronaut Kevin P. Chilton (center), commander, poses on the Space Shuttle Atlantis' forward flight deck with two members of the Mir-21 crew. Pictured are cosmonauts Yury I. Onufrienko (left), mission commander; and Yury V. Usachev, flight engineer. The photograph was taken with a 35mm camera by one of Chilton's crew mates. The astronauts and cosmonauts were aboard each other's spacecraft for brief visits following the delivery of astronaut Shannon W. Lucid, cosmonaut guest researcher, now the third member of the Mir-21 crew.