Robert (Bob) Thirsk

Credit: NASA Public Domain

Dr Thirsk flew in orbital space on Space Shuttle Columbia (STS-78), and on the Soyuz TMA-15 Soyuz mission (2009), as a member of the Expedition 20 crew on the International Space Station. In February 1994, he was crew commander for the CAPSULS mission, for which Dr Kass was a co-investigator on a series of group-dynamics experiments.