How Will The World End?

How Will The World End?

It's a question that's preoccupied scientists, movie directors, and doomsday cults alike. As it turns out, we have some pretty good guesses as to what will destroy our planet-and, in time, even the universe. Sift through some apocalyptic scenarios and try not to panic.

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Key Facts In This Video

  • 1

    Breaking apart Earth would take as much solar energy as the Earth receives over 40 million years. (0:30)

  • 2

    To destroy Earth, the largest known asteroid would have to hit the planet at 700 km/s. (2:06)

  • 3

    In 100 billion to a few trillion years from now, the expansion of the universe might affect smaller-scale objects, such as planets. (5:43)

04:31

from Universe Today

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Asteroids

Fire

Long-Distance Running

Science

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