The Universe

Season 4 Episode 9

Liquid Universe

Aired Tuesday 9:00 PM Oct 20, 2009 on The History Channel
8.9
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Episode Summary

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On alien planets it rains from the sky as scalding iron. On distant moons, even at hundreds of degrees below zero, they slosh around in lakes of methane. They can cover planets in oceans of electrified hydrogen metal. They churn in dead stars and even our planet. They're so rare in the universe, they almost don't exist, but these are the liquids of our Liquid Universe.moreless

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