All Things Space, UFOs, etc.Scientists issue chilling update on the famous ‘WOW!’ signal first detected in 1977 – and say they can’t rule out aliens Posted on September 2, 2025 by Administrator In 1977, scientists discovered a mysterious signal beaming from space that was so powerful it prompted astronomer Jerry Ehman to write ‘Wow!’ on the telescope’s readout. For decades, scientists have debated whether this so-called ‘Wow! signal’ could have been an attempt at communication from a distant alien civilisation. Now, a team of experts has re-examined the signal’s data with modern techniques and found that it could be even stranger than previously thought.