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distant neutron starsMailOnline
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82% Informative
In 2022 , a radio telescope detected a burst of energy coming from a galaxy 200 million light-years from Earth .
It contained enough energy to outshine entire galaxies and was theorised to have been a signal from an alien civilisation.
Now, scientists from MIT have discovered that this 'fast radio burst' originated from a small area extremely close to a rotating neutron star, the ultra-dense remains of a dead sun.
They argue that the burst must have come from the layer of powerful magnetic fields surrounding the star known as the magnetosphere.
By identifying the gas cloud that the flash must have passed through, the researchers were able to zoom in on its origin within unprecedented accuracy.
The FRB emerged from a galaxy more than ten times the distance to our nearest neighbouring galaxy.
But the researchers found that its source was an area just 10,000km ( 6,200 miles ) wide.
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