NASA's Unexplained Files - Season 2 (2015) (temporadas)
Sinopses(1)
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? (Science Channel)
Elenco
Erik Dellums (narrador)
USA
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