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  1. Astronomy

    Otherworldly triple play

    Astronomers have discovered the first known system of three superEarths beyond the solar system.

    By Ron Cowen
  2. Astronomy

    Accidental astrophysicists

    MATH TREK: The mathematicians thought they'd just extended a fundamental result in algebra, but it turns out that they'd also proven a conjecture in astrophysics.

    By Julie Rehmeyer
  3. Astronomy

    Visions of dirt

    Phoenix Lander gets first close-up of Martian soil.

    By Ashley Yeager
  4. Astronomy

    Not a ripple

    Another null result for gravitational waves. But findings from LIGO still reveal new information about the Crab Pulsar.

    By Ashley Yeager
  5. Archaeology

    Resurrection of a biblical tree

    Date palm pit found at Masada sprouts at age 2,000, becoming the oldest known seed to germinate.