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COOn August 15, 1977, a radio telescope in Ohio detected a powerful signal from the direction of the Sagittarius constellation.
It lasted 72 seconds and looked exactly like scientists imagined an alien transmission would.
Astronomer Jerry Ehman circled it on the printout and wrote “Wow!”—which is how it got its name.
Despite decades of searching, the Wow Signal has never been detected again, and its source remains one of astronomy’s biggest mysteries.
#space #cosmos #astrophysics #aliens
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