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Because most of them burst once and never return, they are impossible to predict, and impossible to trace. This is one of the main reasons why we don't know what causes them. But FRB 121102 has proved to be exceptional.
In March 2016, researchers announced they'd found 10 other bursts from the same location in archival data. Then in December 2016, 6 bursts were detected from FRB 121102; then 15 more in August 2017.
This allowed researchers to locate the source of these signals - a star-forming region in a dwarf galaxy more than 3 billion light-years from Earth.
The radio signals of FRB 121102 are almost completely polarised. When these polarised signals travel through a magnetic field, they become twisted - the stronger the field, the greater the twist. This is called Faraday rotation, and it allows researchers to learn more about the waves' origin.
In the case of FRB 121102, the twisting of the signals' polarisation is some of the greatest ever observed, which means they had to pass through a very intense magnetic field.
"The only known sources in our galaxy that are twisted as much as FRB 121102 are in the Galactic Centre, which is a dynamic region near a massive black hole. Maybe FRB 121102 is in a similar environment in its host galaxy," said PhD candidate Daniele Michilli of the University of Amsterdam and ASTRON, the Netherlands Institute for Radio Astronomy.
"However, the twisting of the radio bursts could also be explained if the source is located in a powerful nebula or supernova remnant."
isn't that a scientists job? examining all available data and come up with the most logical likely answer based on that data set?
originally posted by: FoxStriker
I have to suspect that there is more to this story than meets the eye... Mainstream Science is always quick to come up with an explanation for why something is out of place.