STS-27 Atlantis, Orbiter Vehicle (OV) 104, official crew portrait includes crewmembers wearing t-shirts with NASA and mission insignias (logos) and mission insignia displayed in the background. Seated left to right are Pilot Guy S. Gardner, Commander Robert L. Gibson, Mission Specialist (MS) Jerry L. Ross and standing are MS William M. Shepherd (left) and MS Richard M. Mullane.