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  1. Space

    Planck telescope finds cold, weird wonders

    Survey's first results reveal the largest galaxy clusters and most frigid objects found in universe so far.

    By Ron Cowen
  2. Health & Medicine

    Shingles vaccine linked to lower disease risk

    People 60 and over who get the shot are 55 percent less likely to develop the ailment, a large survey shows.

    By Nathan Seppa
  3. Space

    Today’s weather: thunder and antimatter beams

    Positrons appear to be common in terrestrial lightning storms.

    By Ron Cowen
  4. Space

    New planet small but tough

    Astronomers have confirmed a rocky planet outside the solar system for the first time.

    By Ron Cowen
  5. Humans

    Ancient farmers swiftly spread westward

    A sudden influx of Neolithic farmers in southern Europe led to agricultural practices still in play today.