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Your search has returned 23 images:
  • Europa
Your search has returned 64 articles:
  • It's Alive

    How to milk a naked mole-rat

    For the sake of science, Olav Oftedal has milked bats, bears and a lot of other mammals. But a naked mole-rat was something new.

    “The thin, hairless skin is so translucent that you can see the milk accumulating in the mammary glands,” says Oftedal, of the Smithsonian Environmental Research Center in Edgewater, Md. For once he could tell exactly which glands were full.

    “In most...

    05/03/2014 - 10:00 Animals
  • Letters to the Editor

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    Clocking the universe’s expansion

    Conflicting estimates of the Hubble constant — a measure of the speed of the universe’s expansion — have sparked debate among cosmologists. The discrepancy in data from the Planck satellite with data from other methods may be just a mistake, or it may require adjusting the cosmological model of the universe, as Tom Siegfried explained in “Cosmic question...

    05/02/2014 - 15:30 Cosmology, Health, Climate
  • Editor's Note

    Prying tales from ancient DNA and a far-away moon

    Farming didn’t originate in Europe. It was an import. But over thousands of years, it steadily took hold and transformed the landscape of the continent. Along with it came a transformation of Europe’s population.

    Since the 1970s, genetics has been used to shed light on the spread of agriculture from the Middle East, as well as to look into the ancestry of modern Europeans. But only in...

    05/02/2014 - 15:00
  • Feature

    Written in bone

    Carles Lalueza-Fox nearly missed an opportunity to paint the genetic portrait of a 7,000-year-old Spaniard.

    In 2006, spelunkers stumbled across the ancient remains of two men in a cave in Spain’s Cantabrian mountain range. Lalueza-Fox, an evolutionary geneticist at the Institute of Evolutionary Biology in Barcelona, got a call inviting him to examine the skeletons’ DNA.

    “I told...

    05/02/2014 - 14:30 Archaeology, Ancestry, Anthropology
  • Feature

    The ice of a distant moon

    View the video

    On an unusually hot summer day in Wales, Sanjay Vijendran and colleagues aimed a rocket sled at an elephant-sized ice cube.

    The sled rested on a raised metal track and carried what looked like a cartoon bundle of TNT to propel the contraption at the speed of sound. In front of it, a second sled held a bullet-shaped canister packed with scientific instruments.

    ...

    05/02/2014 - 14:00 Planetary Science, Technology