A look at space probes, what they have done and found for us in space, and what they might do in the future, such as searching for Earth-like planets and for extraterrestrial life.
Tags
History Channel, Louis C. Tarantion, Douglas J. Cohen, the universe, universe, documentary, free, watch, online, movie, film, video, top, doc, documentation, secrets of the space probes, space, probe, secret, planet, future, subtitles, english
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