News

  1. Life

    Time to chill

    Well-preserved fossils deposited in an Antarctic lake about 14 million years ago pin down when a large part of the now-icy continent most recently dipped below freezing.

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  2. Health & Medicine

    Nanomagnets tackle cancer

    Under the influence of an external magnetic field, tiny magnets act as highly localized space heaters, warming to temperatures that kill adjacent cancer cells.

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  3. Life

    Smallest known snake

    New species is thin as a spaghetti noodle but shorter.

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  4. Physics

    Chem 101

    At high pressures, inner electrons begin to affect the structure of lithium.

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  5. Space

    Officially ice

    Phoenix Mars Lander detects water, a landmark that, along with other successes, prompts NASA to extend the mission.