The mystery of rapid radio bursts remains intact
The more we know about fast Radio Bursts (FRB), the more the mystery gets thicker around these extraterrestrial signals whose nature and cause we do not know.
In late June in Science , astronomers reported triangulating the source of a single FRB in a far-off galaxy, some 3.6 billion light-years from Earth. While this finding tends to support the hypothesis that these signals are the result of cataclysmic cosmic events at the confines of the Universe, another study recently published in Nature Astronomy argues that there are not enough such events to explain all the observed FRBs.
Using the Canadian Hydrogen Intensity Mapping Experiment (CHIME), astronomer Vikram Ravi of the California Institute of Technology analyzed the occurrence of FRB. He concludes that at the rate at which they occur, most of the signals must come from celestial sources emitting more than once in their lives – which excludes a priori the hypothesis of cosmic cataclysms.