Animals

Could a Comet Wipe Out Most of Life on Earth Again?

65 million years ago a comet or meteor wiped out 75% of life on Earth. Can we stop it from happening again?

In 2013 a meteor exploded over Chelyabinsk, Russia with the force of 20 nuclear bombs. The scariest part? We had no idea it was coming. In this episode we look at ways to defend Earth against potentially hazardous objects from space. From gravity tractors to solar sails, we look at ways to avert the apocalypse.

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