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  1. Life

    Astrocytes are rising stars

    Astrocytes, brain cells previously thought to be support cells for neurons, regulate blood flow in the brain and may aid neuron signaling. The regulation of blood flow makes visualizing brain activity with fMRI possible.

    By Tina Hesman Saey
  2. Math

    Scooping the political pollsters

    Who will win the election in November? A technique from baseball stats may predict the answer.

    By Julie Rehmeyer
  3. Animals

    Not-OK Coral

    First big species audit finds coral extinction risks severely under-reported

    By Susan Milius
  4. Space

    An early record-breaker

    A remote galaxy is churning out up to 4,000 newborn stars a year, making it the star-forming champ among galaxies in the early universe.