NASA's Unexplained Files Season 6 Episode 7 Planet of the Metal Aliens ( Air Date 2019-05-16 ) Genre Documentary, Talk, Mystery category. Overview "Experts investigate if a nearby exoplanet could be the home to a alien civilization of strange, metallic monsters, after a new discovery confirms that life can thrive on such a strange world.".
NASA's Unexplained Files Season 6 Episode 7 Planet of the Metal Aliens
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