Video Archive

  • Solar Storms May Have Been Key to Life on Earth

    How did life start on Earth? Scientists believe that the solar flares from the sun four billion years ago was enough to trigger a spark of life.

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  • These may be the world’s first images of dogs—and they’re wearing leashes

    Carved into a sandstone cliff on the edge of a bygone river in the Arabian Desert, a hunter draws his bow for the kill. He is accompanied by 13 dogs, each with its own coat markings; two animals have lines running from their necks to the man’s waist.

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