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Radio burst from space mystifies astronomers
Astronomers who stumbled upon a powerful burst of radio waves said on Thursday they had never seen anything like it before, and it could offer a new way to search for colliding stars or dying black holes. They were searching for pulsars – a type of rotating compacted neutron star that sends out rhythmic pulses of radiation – when they spotted the giant radio signal. It was extremely brief but very strong, and appears to have come from about 3 billion light-years away – a light-year being the distance light travels in a year, or about 6 trillion miles.
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