Sketch of the module configuration of the future Mars-500 experiment by Roskosmos and ESA. German captions.
Arne Nordmann (<a href="//commons.wikimedia.org/wiki/User:Norro" title="User:Norro">norro</a>)
CC BY-SA 3.0
Own illustration, 2008. Based on <a rel="nofollow" class="external free" href="http://spaceflight.esa.int/users/downloads/ao2007/AO-07-Mars500.pdf">http://spaceflight.esa.int/users/downloads/ao2007/AO-07-Mars500.pdf</a>