Mystery radio signal sent to Earth from ‘closest ever point’ within Milky Way

Scientists have traced mysterious radio signals detected on Earth to a dead star within our Milky Way galaxy. The millisecond-long burst of radiation was emitted by a magnestar — a type of star with an extremely powerful magnetic field — roughly 14,000 light-years away, according to a study. Known as fast radio bursts (FRBs), signals...

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