The Mars500 crew attend a press conference shortly after completing their 105-day Mars mission simulation inside a special isolation facility at the Institute for Biomedical Problems (IBMP) in Moscow, Russia. Their mission is part of the Mars500 programme that will help us to understand the psychological and medical aspects of long spaceflights. The six-strong crew includes two ESA crewmembers: Oliver Knickel, a mechanical engineer in the German army, and Cyrille Fournier, an airline pilot from France.