BLC1 - The Mysterious Radio Signal From Proxima Centauri

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here. — Arthur C. Clarke

In April and May 2019 Scientists at the Parkes Observatory observed a radio signal spatially coincident with the direction of the Solar system's closest star Proxima Centauri

The signal is known as BLC1, which stands for; Breakthrough Listen Candidate 1. The radio signal was detected during 30 hours of observations conducted by Breakthrough Listen. Here it is folks, BLC1;

BLC1 - The Mysterious Radio Signal From Proxima Centauri

This signal was exactly 982.002 MHz. There is no known natural emitter of anything remotely like this narrowband beam, the signal is technological.

“We don’t know of any natural way to compress electromagnetic energy into a single bin in frequency. Perhaps, some as-yet-unknown exotic quirk of plasma physics could be a natural explanation for the tantalizingly concentrated radio waves. But for the moment, the only source that we know of is technological.” — Siemion, Berkeley University.

Proxima Centauri is a rare triple star system, of ultra long-lived, stable Red Dwarf stars, most incredibly we know that NASA has identified a rocky exoplanet that sits in the habitable zone of this system.

The innermost planet known  in the Proxima Centauri system orbits its parent star inside that system’s habitable, or Goldilocks, zone where temperatures are “just right” for water to form on planets.

This warmth is the result of Proxima b orbiting extremely close to its central star — just five percent of the distance between the Earth and Sun. This close orbit means the planet orbits Proxima Centauri every 11.2 days.

BLC1 - The Mysterious Radio Signal From Proxima CentauriArtists conception of Proxima Centauri b, a rocky planet with an estimated mass of at least 1.2 times that of Earth and warm enough for liquid water.

Finally, and perhaps most fascinating of all, the Doppler shift of the signal BLC1 only increased during its period of observation, meaning whatever technological device emitted this signal, appeared to be moving.

Scientists are not completely sure if the signal is indeed coming from the direction of Proxima? According to an article from AstroWright

If it’s ground-based interference, it’s definitely not coming from that direction. If it’s really from space, it could actually be coming from any place in a 16 arcminute circle around Proxima—about half the width of the full moon.

 Footnotes

BLC1 - Wikipedia

BLC1: A candidate signal around Proxima

What is BLC-1 – That Weird Signal from Proxima Centauri?

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