Discovery of Second  Raises New Questions

Repeating Fast Radio Burst

A team of astronomers has

discovered a second persistently active fast radio burst, questioning about the nature of the mysterious phenomena

Fast radio bursts (FRBs)

 are intense, brief flashes of radio-frequency emissions, lasting on the order of milliseconds. 

The phenomenon was 

discovered in 2007, by graduate student David Narkevic and his supervisor Duncan Lorimer

The source of these 

highly energetic events is a mystery, but clues as to their nature are being gradually collected. 

The new source, Fast radio

 burst 20190520B, was detected with the Five hundred-meter Aperture Spherical radio Telescope (FAST) in Guizhou, China

The discovery raises new

questions, if the sources of the FRBs evolve, or alternatively whether different kinds of sources are capable of emitting FRBs

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