There are a few very strange letters in Rhen Var Citadel, Join the CIS or Empire and spawn in the CP called: 'the Observatory'.
Turn left and go up the stairs, you will see the letters at the end of the wall. These letters are Starwars-letters called "Aurebesh".
"Bla Bla Bla
This Game Bla
Is there water on Mars?
Maybe thats where the Jedi are..."
(translated with help of this website