NASA's Unexplained Files S2E1 - Life in Hell
NASA's Unexplained Files S2E1 - Life in Hell
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A UFO crashes in Pennsylvania. Was it a secret Soviet satellite or something far more dangerous? On Mercury, NASA finds the impossible: frozen water. A strange object causes a skyscraper-sized shadow on the surface of Mars's largest moon. What is it?
Released Mar 27, 2012
Runtime min
Genre Documentary, Talk, Mystery
Actor N/A
Director N/A
Production Discovery