Asteroids: TIME Explains What We Really Need to Know (Video)

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TIME Senior Science Editor Jeff Kluger explains, “Earth lives in a shooting gallery of asteroids, any one of which could hit us one day.”

Alternate Endings to 2012

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If the world had ended this year, it might have gone something like this.

Wishing You a Happy End of the World

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What if we woke up this morning and everyone saw the world differently?

The Perpetual Temptation of the End of the World

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You ever wonder why we keep on predicting apocalypses even though they never come true?

Open Thread: Is the World Going to End on 12/21/2012?

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Is it really the end?