Astronauts Lucid and Blaha on the aft flight deck

STS79-E-5131 (20 September 1996) --- Astronauts Shannon W. Lucid and John E. Blaha, sharing a third flight together in Earth-orbit (twice on the Space Shuttle Atlantis, once on the Space Shuttle Columbia), hold a brief-debrief session about their soon-to-be exchanged roles, during Flight Day 5. Blaha becomes a Mir-22 cosmonaut guest researcher for several months and Lucid ends a period of over six months aboard Mir as a cosmonaut guest researcher, having spent time with two Mir crews.