The Promising Signal: BLC-1
At the center of this potential discovery is a signal known as BLC-1 (Breakthrough Listen Candidate 1). This radio wave signal was first detected in April 2019 by the Parkes Telescope in Australia. What makes BLC-1 particularly intriguing are several key characteristics:
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It originates from a single point source
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The signal is in a narrow frequency band
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It exhibits a Doppler shift, suggesting it comes from a rotating planet
These features make BLC-1 stand out from natural phenomena and align with hypothesized characteristics of artificial signals from an extraterrestrial civilization.
The Race to Confirm
Two main groups are working to verify and potentially announce this groundbreaking discovery:
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Breakthrough Listen: This privately funded research program, based in Oxford, has been analyzing the BLC-1 signal. They are meticulously gathering additional data to support their findings.
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Chinese FAST Program: China’s Five-hundred-meter Aperture Spherical Telescope (FAST) team is also investigating the signal. As the world’s largest telescope, FAST provides them with a powerful tool for this research.
Both teams are exercising extreme caution before making any announcements, understanding the monumental implications of such a discovery.