X-SciTech 7 crop circles with NASA themes October 5, 2011 / 5:08 PM EDT / CBS News Space Farm 7 The "Space Farm 7" project is celebrating the accomplishments of the U.S. space program over the last half century with each farm's corn maze featuring its own theme. Space Farm 7 Space Farm 7 Space Farm 7 Space Farm 7 Space Farm 7 Space Farm 7