It’s true that these look like photoshop mock-ups or spoof posters. But the posters below are legitimate promotional posters put out by NASA’s Space Flight Awareness group. A public relations initiative, the posters are intended to increase public awareness of missions and accomplishments.
A poster is created for every mission to the International Space Station, beginning with Expedition 1 in the year 2000. The awesomeness continues with Expedition 45, which is scheduled for September of this year. It has a Jedi themed poster with the tagline, “The science continues.”
Check out the full archive of NASA’s promotional posters.