REPEATING fast radio bursts have been detected by scientists for the second time ever - raising speculation as to whether it could be aliens.
The fast radio bursts (FRBs) have come from deep space with their origin unknown. The majority of scientists believe they are generated by powerful astrophysical phenomena like black holes. Professor Avid Loeb from the Harvard Smithsonian Centre for Astrophysics in the US, said the bursts could be evidence of advanced alien technology.
The FRBs were detected first by accident in 2007 as a burst signal in radio astronomy data collected in 2001 was spotted.
The discovery was reported in the journal Nature and was made by a Canadian-led team of astronomers who were hunting for FRBs.
Last summer over three week the team found 13 flashes using a raid telescope called the Canadian Hydrogen Intensity Mapping Experiment (Chime).
One of the FRBs they discovered was repeating, like the one previously found by accident in 2001.
The first repeated burst was discovered by the Arecibo radio telescope in Puerto Rico in 2015.