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Could Alien Spacecraft Propulsion Explain the Cosmic Mystery of Fast Radio Bursts?

11 Mar 2017, 00:29 UTC
Could Alien Spacecraft Propulsion Explain the Cosmic Mystery of Fast Radio Bursts?
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It’s an “out there” hypothesis, but radiation from alien spacecraft zooming around space could account for the strange bursts of radio waves coming randomly from the deep cosmos.

Powerful bursts of radio waves have been observed at random all over the sky and astronomers are having a hard time figuring out what the heck could be causing them. Many natural phenomena have been put forward as candidates — from massive stellar explosions to neutron star collisions — but none seem to fit the bill. It’s a mystery in its purest sense.
Pulling the alien card will likely raise some eyebrows in academic circles, but if these so-called fast radio bursts (FRBs for short) end up lacking a satisfactory explanation, according to Avi Loeb of the Harvard-Smithsonian Center for Astrophysics (CfA), an artificial source (e.g. advanced extraterrestrial intelligence) could become the prime suspect.
“Fast radio bursts are exceedingly bright given their short duration and origin at great distances, and we haven’t identified a possible natural source with any confidence,” said Loeb in a statement. “An artificial origin is worth contemplating and checking.”
FRBs are super weird. First detected in 2007, several radio observatories on Earth — including the famous Arecibo Observatory ...

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