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‘Spooky’ object that unleashes periodic bursts of energy detected in Milky Way
By Denise Chow
A Mysterious Radio Signal From Space Is Repeating Every 18 Minutes and 18 Seconds
By Becky Ferreira
Mysterious energy source unlike anything astronomers have seen before
Milky Way mystery 'unlike anything' seen before
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Unknown space object beaming out radio signals every 18 minutes remains a mystery
By Ashley Strickland