Name the [part of the] station "Colbert".
The publicity will only do NASA good. It will help popularize space funding amongst an audience of political science students -- and likely future politicians, as well as a whole bunch of other people who simply don't care. Stephen is a friend of NASA, his audience isn't comprised of space geeks on the whole. Having Stephen get them interested in Space is a damned good thing. There is no loss in naming the station after him, no especial advantage in naming it serenity or anything else, but there is a substantial gain in naming it Colbert -- it just makes sense.
Slashdot Comments, NASA In Colbert Conundrum Over Space Station