🚨 The Wow Signal: The 72-Second Message That Still Haunts Science 👁️📡 On August 15, 1977, a routine scan of deep space turned into one of the most baffling moments in human history. The Big Ear Radio Telescope at Ohio State University detected a perfect, narrowband transmission — so sharp, so deliberate — that astronomer Jerry Ehman circled the data printout and wrote a single stunned word beside it: “Wow!” 📡 The signal lasted exactly 72 seconds, originating from the direction of Sagittarius