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"Mission of Gravity" is a 1953 hard science fiction novel by Hal Clement, originally serialized in Astounding Science Fiction. The story is set on Mesklin, a massive, rapidly rotating exoplanet characterized by extreme variations in gravity, ranging from three times Earth's gravity at the equator to...
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Final Days of Planet Earth is a 2006 American science-fiction television film directed by Robert Lieberman. Its story follows a growing threat to human civilization that is connected to an alien or otherwise unexplained force, combining elements of disaster fiction, invasion drama, and speculative s...
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