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NOVA
Asteroid: Doomsday or Payday? Preview
The asteroid that exploded over Siberia—injuring more than 1,000 and damaging buildings in six cities—was a shocking reminder that Earth is a target in a cosmic shooting range. From the width of a football field to the size of a small city, these space rocks have the potential to be killers. In a collision with Earth, they could set off deadly blast waves, raging fires and colossal tidal waves.
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Humans are born to roam. See how engineers are inventing new ways to explore and extend our range.
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Is engineering humanity’s superpower? See how we can amplify our natural abilities in amazing ways.
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Visit strange, frozen worlds to discover the bizarre ice that forms beyond Earth.
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Discover the powerful volcanic eruptions that have shaped worlds across our solar system.
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What are the weirdest worlds in our solar system, and how did they come to be?
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Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
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Explore big discoveries that have revolutionized our understanding of the universe.