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Welcome to Space Planet — home of the universe's most impossible worlds. Lava oceans, diamond planets, skies that rain iron and glass, worlds darker than coal, planets that outlive their own stars: every video is a journey to a real world beyond Earth, built on verified science and cinematic storytelling. Here you'll find full exoplanet documentaries and the Alien Worlds Shorts series — strange planets of other solar systems, secrets of our own, and the physics that makes them possible. No hype. No speculation. Just worlds stranger than fiction. New videos every week. Subscribe — the universe is bigger than you think.