Asteroid: Doomsday or Payday?

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Asteroid: Doomsday or Payday?
Part of the Series: NOVA

53 mins

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...

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Brian Leckey, David Hutt, Jonathan Challis
Craig Sechler