First close-up images of Pluto revealed the unimaginable secrets of this mysterious frozen world. Now, scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface, and whether this underground ocean could harbor life.
Guest Cast
Cast Appearances
Mike Rowe
voices Himself (Narrator)
Episode Discussion
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Retitled, this episode re-aired on 9/3/2018 as "Pluto: the Alien Secrets" with a summary of "New discoveries shed new light on Pluto's alien mysteries, and experts investigate if the tiny frozen world could be a home for extraterrestrial life."