Have aliens been trying to make contact since the first Star Wars was released? In 1977, astronomer Jerry Ehman was using a radio telescope called Big Ear from Ohio State University to scan the stars around the constellation Sagittarius. Ehman was going over the print-out of the recorded information and found that they had received a strong narrowband radio signal that bore the expected hallmarks of extraterrestrial origin. Ehman was so excited by the discovery that he wrote “Wow!” in the margins after circling the data. But was this really our first alien contact? Find out in this episode!