Article Images Arc'hanmael Gaillard   Arc'hanmael Gaillard from France was a member of the backup crew for the 105-day isolation period of the Mars500 study. He is a study and development engineer at Thomson R&D France working with the research and development of technologies for flat panel displays. Born in 1976, Gaillard lives in Rennes, France. Last update: 22 March 2010