How a 72 Second Signal From Space Became the Biggest Mystery in Astronomy
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MSNAstrum
How a 72 Second Signal From Space Became the Biggest Mystery in Astronomy
In 1977, astronomers recorded an unexplained 72-second radio signal stronger than anything else detected from deep space. Dubbed the “Wow Signal,” it came and went without warning, never repeating again. Decades later, scientists still debate whether it was a cosmic anomaly or evidence of intelligent life.
3 months ago
Wow! Signal Mystery
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Back in 1977, a mysterious signal reached Earth — lasting only seventy-two seconds. Detected by Ohio State’s Big Ear Radio Observatory while scanning the constellation Sagittarius, the signal was unlike anything ever heard before. Astronomers called it the Wow! signal. It appeared on the same hydrogen frequency scientists use in the search for extraterrestrial intelligence — 1420 MHz — and has never been detected again. Nearly fifty years later, we still don’t know who, or what, sent it. #space
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