The official poster for the 45th expedition to the International Space Station is Star Wars themed, and features astronauts Scott Kelly, Mikhail Korniyenko, Oleg Kononenko, Kimiya Yui, Kjell N. Lindgren, and Sergey Volcov dressed in Jedi robes and weilding lightsabers.
Previous posters have been set in the style of Firefly:
The Hitchhiker's Guide To The Galaxy:
And a lot more. Because the International Space Station is awesome.