Space's Deepest Secrets S05E02 · Mystery of the Alien Megastructure
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Overview
A mysterious star hundreds of light years away might hold the hard evidence of extraterrestrial life, as experts speculate that its bizarre behavior points to proof of a massive alien-made megastructure.
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Episodes
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1. Dark Origins of the Moon2018-10-15 · 42mNew discoveries reveal that everything known about the moon could be wrong; investigators race to understand the mysteries of its dark and violent past.
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2. Mystery of the Alien Megastructure2018-10-22 · 42mA mysterious star hundreds of light years away might hold the hard evidence of extraterrestrial life, as experts speculate that its bizarre behavior points to proof of a massive al
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3. Journey to Saturn's Rings2018-10-29 · 42mNew discoveries change everything known about Saturn's rings, revealing that they're newer and more mysterious than ever imagined, and that some day soon, they might disappear fore