Saturday, 11 March 2017

Are distant radio bursts in space signs of alien sailors?

Fast Radio Bursts. They come from galaxies far, far away, but scientists have no idea what they are.
FRBs have mystified scientists ever since they burst onto the astronomical scene in 2007. Since then, large radio telescopes have captured fewer than two dozen of the enigmatic flickers, far brighter than most known objects. Now, a pair of Harvard theorists have a wild idea: planet sized beacons that would dwarf the Death Star, and maybe even Starkiller Base.
Lasting mere thousandths of a second, the radio pulses are far too bright to match what we know about other sources that emit energy in bursts, such as the spinning neutron stars known as pulsars.
"There is no known astronomical object that generates radio bursts at such a high brightness, which is tens of billions of times brighter than the known population of pulsars, for example," co-author of the paper Avi Loeb of the Harvard-Smithsonian Center for Astrophysics told Gizmodo.-read more

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