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  • An asteroid with a diameter of 500 km.

  • Destination: The Pacific Ocean.

  • The impact peels the 10 km crust off the surface.

  • The shockwave travels at hypersonic speeds.

  • Debris is blasted across into low Earth orbit,

  • and returns to destroy the surface of the Earth.

  • The firestorm encircles the Earth,

  • vaporizing all life in its way.

  • Within one day, the surface of the Earth is uninhabitable.

  • The evidence shows that this has happened at least six times in Earth's history.

An asteroid with a diameter of 500 km.

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