NASA's first set of these came before SpaceX's (Jan 2015 vs May 2015): http://www.engadget.com/2015/01/08/nasa-travel-posters-exoplanets/ http://www.engadget.c

NASA's first set of these came before SpaceX's (Jan 2015 vs May 2015): http://www.engadget.com/2015/01/08/nasa-travel-posters-exoplanets/ http://www.engadget.com/2015/01/08/nasa-travel-posters-exopl...