The STS-61A Spacelab D1 crew in-flight portrait

The crew of the Spacelab D1 mission (30 October to 6 November 1985) pose on the mid-deck of the Shuttle Challenger. From left, top row, Hank Hartsfield, Bonnie Dunbar, Steve Nagel, Reinhard Furrer (DE), below, Ernst Messerschmid (DE), Wubbo Ockels (NL), Jim Buchli and Guy Bluford.