Overview: The controversial theory that for millions of years the Earth was plunged into catastrophe - entirely smothered in ice up to one kilometre thick.
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First Air Date: Feb 04, 1964Last Air date: Jul 22, 2024Season: 60 SeasonEpisode: 1162 EpisodeRuntime: 60 minutesQuality: HDIMDb: 7.40 / 10 by 27 usersPopularity: 108.77Language: English