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Take a wild ride into the quantum realm, where even the impossible seems possible.
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Is our universe unique, or could it be just one in an endless "multiverse"?
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Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.
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Before it was a dry planet, Mars was a wet world that may have hosted life.
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Jupiter's massive gravitational force has made it a wrecking ball and a protector of Earth
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NASA's Cassini reveals the mysteries of Saturn's rings—and new hope for life on a moon.
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Beyond icy worlds of Uranus and Neptune, Pluto dazzles with its mysterious ocean.
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Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring it back to Earth.
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Scientists look to geoengineering and other methods to cool the planet.
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The creation of printing, the first information technology, drove empires and revolutions.
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The birth of writing and the first alphabet were among the world’s most vital inventions.
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Meet slime molds: the brainless blobs that can learn, make decisions, and navigate mazes.
