News

  1. Physics

    When warming up causes cooling down

    Under the right circumstances, heating a tiny cluster of sodium atoms makes its temperature fall.

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  2. Physics

    Physicists get B in antimatter studies

    New observations that subatomic particles called B mesons decay differently from their antimatter versions may help explain why the universe is made almost entirely of matter, not antimatter.

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  3. Quoll male die-off doesn’t fit pattern

    Males of a ferretlike marsupial called a quoll die off after one mating season-unusual behavior that suggests the need for new theories of why such deaths occur after mating.

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  4. Stick insects: Three females remain

    An Australian expedition locates three females of a big, flightless stick insect species thought to have gone extinct.