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The rocky planets have similar origins, but only 1 supports life. Was it always this way?
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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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Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring it back to Earth.
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Beyond icy worlds of Uranus and Neptune, Pluto dazzles with its mysterious ocean.
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The creation of printing, the first information technology, drove empires and revolutions.
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We can now edit the human genome with a tool called CRISPR. But how far should we go?
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Watch as Otzi, a 5000-year-old mummy, is brought to life and preserved with 3D modeling.
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Who or what killed hundreds of people hidden in a burial chamber nearly 2,000 years ago?
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Can modern forensic science uncover fresh clues about the assassination of JFK?
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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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Scientists race to uncover a site in the Rockies packed with fossil mammoths.
