Cassiopee is a fictional orbiting lab, a kind of skylab or salyut european counter-part. It launch by Energya.
Addons required:
Spacecraft3, Spacecraft2&Multistage2 (Vinka) http://users.swing.be/vinka/
Energy Project (KULCH) http://www.orbithangar.com/
Buran beta0.3 (JKanios) or Buran2 (Mark Petroff) http://www.orbithangar.com/
Ariane5/Hermes (Thomas Ruth) http://avsim.com/
Please read "EOL-Cassiopée.pdf".