Alien radio signals detected repeating with a regular 16-day cycle

Scientists Detect Extragalactic Radio Signals Arriving in an Unexplained Pattern

Since these bursts are so uncommon, odd and splendid - taking into account that they're obvious from billions of light-years across space - physicists have would, in general, expect they originate from a destructive occasion, for example, the impact of stars.

Fast radio bursts (FRBs) are not in and of themselves unusual - the first was detected in 2007 - but previous observations have shown them to be mostly emitted at random.

This burst was linked back to a small dwarf galaxy containing stars and metal.

Astronomers have detected alien signals - that is, signals from a foreign galaxy - being emitted in an unusually regular 16-day cycle.

Its origin was located within a medium-sized spiral galaxy about 500 million light-years away, making it the closest FRB discovered to date.


Fast radio bursts, or FRBs, are millisecond-long bursts of radio waves in space.

Researchers studying data from the radio telescope used by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) found the FRB signals arrived on Earth up to twice an hour for four days before suddenly stopping, only to start up again twelve days later.

The findings are included in the pre-print of a paper on arXiv, meaning the paper has been moderated but not fully peer reviewed.

Researchers are tracing the origin of these mysterious bursts but so far, they have traced myriad sources every burst. The scientist also suggested that the signals could be coming from a binary star system made up of a massive star and a magnetized neutron star. Neutron stars usually appear to strobe recurrently from the angle of X-ray detectors on Earth, as a result of scorching spots on their floor spin out and in of view like a lighthouse beacon. The interaction between these two, and the wind coming off of the OB-type star, could factor into the cause of the repeating FRB's pattern.

The powerful, high energy bursts are some of the most enigmatic phenomena in astronomy. The more bursts they can trace, the better they may be able to use the signals to map how matter is distributed across the universe. That way, they'll know if this kind of periodicity is the exception or routine behavior.

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