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Astronomers detected a strange radio and X-ray signal in deep space, unlike anything they've seen before
By Iain Todd
Something Deep in Our Galaxy Is Pulsing Every 44 Minutes. No One Knows Why.
By Elizabeth Rayne
We are not alone—scientists detect mysterious pulses in space that have never been seen before and do not know what is causing them
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A strange object is sending radio signals through space and experts don't know why
By Fionnuala Boyle