Mysterious fast radio bursts from deep space ‘could be aliens’

Repeating bursts of radio waves detected for first time since initial accidental discovery in 2007Astronomers have detected mysterious, ultra-brief repeating energy bursts from deep space for only the second time in history, and some experts suggested they could be evidence of advanced alien life.The origin of fast radio bursts (FRBs), millisecond-long pulses of radio waves, is unknown, but most scientists say they are generated by powerful astrophysical phenomena emanating from billions of ligh