The mystery behind the famous 1977 “Wow!” signal has gained renewed attention after a Harvard astronomer proposed that the newly observed interstellar object 3I/ATLAS may be linked to the event. The Wow! signal, captured on August 15, 1977, by Ohio State University’s Big Ear radio telescope, has long fascinated scientists as a potential indicator of extraterrestrial intelligence. Astronomer Avi Loeb argued in a September blog that the signal, which has not been spotted in the 48 years since it