All Stories

  1. Space

    Planet in the sky with diamonds

    Scientists have discovered a Jupiter-sized orb with a mostly carbon atmosphere 1,200 light-years distant, the first time astronomers have detected such a world.

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  2. Tech

    Dirty money 2: Expect traces of BPA

    BPA showed up on 21 of the 22 greenbacks surveyed in a new study. And the clean dollar? It appeared quite new, suggesting that dollars only become contaminated as they circulate.

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  3. Life

    Jigsaw genetics

    Fragments of a fetus's genome can be pieced together from the mother's blood to allow prenatal diagnosis of genetic diseases.

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  4. Dirty money 1: Expect germs

    China’s yuan banknotes are bacterial magnets, relatively speaking, while Australian dollars circulate virtually germfree. The difference traces to a number of factors — not least being what they’ve been printed on, a new international study concludes.

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  5. Health & Medicine

    New blood test may predict some heart risk

    People carrying high levels of a protein called cardiac troponin T are more likely to have heart failure or die from cardiovascular problems, two studies show.

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  6. Science & Society

    E.T.? No. Arsenic? Yes. Maybe. Hmmm.

    NASA's bacterium news sparks criticism.

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  7. Space

    Crab nebula outbursts shock astronomers

    Short-lived gamma-ray flares recently recorded from the Crab nebula supernova remnant, known for its steady emissions, are perplexing researchers and forcing them to consider new models for particle acceleration.

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  8. Space

    Beast at galaxy core sits, lacking spin

    New observations suggest that the Milky Way's central black hole rotates slowly or not at all, reinforcing its image as a gentle gravitational giant.

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  9. Tech

    Terrorist-resistant ‘source’ of moly-99 hits the U.S.

    Molybdenum-99 is the radioactive feedstock for the most widely used diagnostic nuclear-medicine isotope. On December 6, the first commercial batch of moly-99 that had been produced using a terrorist-resistant process arrived in the United States from a reactor in South Africa.

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  10. Psychology

    Connected at church, happy with life

    People who feel best about their lives combine religious identity with congregational friendships, a survey finds.

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  11. Life

    Friendly fire blamed in some H1N1 deaths

    A poorly targeted immune response to the 2009 pandemic flu virus caused young adults and the middle-aged to suffer more than usual.

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  12. Math

    Outstanding, superlinear cities

    By a new mathematical method, New York City proves average and San Francisco exceptional.

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