 Sharman was launched aboard Soyuz TM-12 on 18 May 1991, and returned aboard Soyuz TM-11 on 26 May 1991.Both Sharman and Mace were candidates but not selected in the 1992 and 1998 European Space Agency selection rounds for its astronaut corps.Brooks was also put forward for the European Astronaut Corps in 1982, but dropped out when employed on AI systems elsewhere.