Season 5 Episodes
1. Dark Origins of the Moon
October 15th, 201842 min
New discoveries reveal that everything known about the moon could be wrong; investigators race to understand the mysteries of its dark and violent past.
2. Mystery of the Alien Megastructure
October 22nd, 201842 min
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.
3. Journey to Saturn's Rings
October 29th, 201842 min
New 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 forever.
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