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Earth's Unsolved Mysteries (S5, E4) | The UnXplained | Full Episode

Earth's Unsolved Mysteries (S5, E4) | The UnXplained | Full Episode

The world is full of stunning displays of natural phenomena that are so spectacular and, at times, so strange they defy conventional wisdom. Can science explain Earth's mysteries? In Season 5, Episode 4, "Earth's Unsolved Mysteries." Watch full episodes of The UnXplained and stay up to date on all of your favorite The HISTORY Channel shows at ...

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