NASA watch seems to have been first in noticing the way-cool Star-Trek Style NASA poster, cheerfully shown here in all its glory.  Yes, this is not your parent's NASA... no, wait, it is.  Star Trek also dates from the 60s.

It's a well-done poster, with great poses all around.  That's the crew for shuttle Expedition 21.  Until we build Star Fleet, I figure these people qualify.

For a full list of NASA mission posters, serious and parody, you can visit http://sfa.nasa.gov/products.cfm.

Alex, not in Star Fleet