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New discoveries reveal the terrifying ways that space can destroy all life on Earth. This episode of is a mashup of "How the Universe Works" S06E07 "The Quasar Enigma" and S05E05 "The Universe's Deadliest."
Quasars are the brightest and most powerful objects in the universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists.
Our solar system is home to hundreds of strange, tiny worlds called dwarf planets, and new discoveries reveal the secrets of these mysterious places.