
In 1977, a radio telescope in Ohio received a signal so powerful, so unnatural, that astronomer Jerry Ehman scrawled one word on the printout: 'Wow!'. For nearly five decades, that 72-second burst from deep space has remained one of science's most profound and unanswered questions.
Now, renowned Harvard astrophysicist Avi Loeb has revealed a stunning new clue. Loeb, the former chair of Harvard's astronomy department and head of the Galileo Project, has never been shy about challenging scientific orthodoxy. He suggests a potential link between the mysterious signal and an interstellar object, a connection he calculates as a '0.6% cosmic coincidence'.