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  1. Health & Medicine

    Curbing Chemo: Fasting cushions drug’s side effects in mice

    Two days of starvation kicks mice's cells into repair mode and helps them endure high doses of chemotherapy.

    By Patrick Barry
  2. Math

    Creeping Up on Riemann

    Theorists find the first example of an elusive complex function that just may help them solve the biggest problem in mathematics.

    By Julie Rehmeyer
  3. Animals

    Night Flights: Migrating moths may use a nighttime compass

    Silver Y moths choose to fly when wind blows in the same direction that they migrate, and they may even compensate when the wind pushes them off-course.

    By Susan Milius
  4. Planetary Science

    Caught in the Act? Images may reveal planetary birth

    Astronomers, for the first time, have imaged dusty clumps surrounding young stars that could be planets in the making.