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Alien hunters detect mystery signal coming from the closest star system

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https://www.livescience.com/proxima-cent...-beam.html

EXCERPTS: Astronomers hunting for radio signals from alien civilizations have detected an "intriguing signal" from the direction of Proxima Centauri, the nearest star system to the sun, The Guardian reported.

The researchers are still preparing a paper on the discovery, and the data has not been made public, according to The Guardian. But the signal is reportedly a narrow beam of 980 MHz radio waves detected in April and May 2019 at the Parkes telescope in Australia. The Parkes telescope is part of the $100 million Breakthrough Listen project to hunt for radio signals from technological sources beyond the solar system. The 980 MHz signal appeared once and was never detected again. That frequency is important because, as Scientific American points out, that band of radio waves is typically lacking signals from human-made craft and satellites.

[...] But the Guardian cautioned that this signal is "likely to have a mundane origin too." Such more mundane sources include a comet or its hydrogen cloud, which also could explain the Wow! Signal. ... An inherent challenge in searching for alien communications is that no one knows how aliens might communicate, and no one knows all the potential natural sources of radio waves in the universe... (MORE - details)
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