In 1977, astronomers received a powerful, peculiar radio signal from the direction of the constellation Sagittarius. Its frequency was the same as neutral hydrogen, and astronomers had speculated that ...
The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more natural source. In a series of papers, astronomers have compared the "Wow!
On August 15, 1977, the Big Ear observatory in Ohio picked up an unusually intense radio signal. The signal was so unique that it prompted astronomer Jerry Ehman to draw a red circle around it and ...
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