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  1. Astronomy

    Explosive News: Telescopes find signs of gentler gamma-ray bursts

    Astronomers appear to have discovered an unexpected population of low-energy gamma-ray bursts, and they could be 10 times more numerous than previously-known higher-energy bursts.

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  2. Health & Medicine

    Stopping Alzheimer’s: Antibody thwarts disease in mice

    Antibodies against amyloid protein, which gums up the brains of Alzheimer's patients, reverse a form of the disease in mice.

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  3. Earth

    Twin satellites track water’s rise and fall

    A pair of satellites launched in 2002 has detected small, regional changes in Earth's gravitational field that are caused by seasonal variations in rainfall and soil moisture.

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  4. 19451

    Speaking as someone with a Ph.D.