News

  1. Life

    Immune system defects seem to contribute to obesity in mice

    Subtle defects affecting T cells altered the animals’ microbiome and fat absorption, providing hints of what might also be going on in people.

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  2. Particle Physics

    Dark matter particles won’t kill you. If they could, they would have already

    The fact that no one has been killed by shots of dark matter suggests the mysterious substance is relatively small and light.

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  3. Climate

    How today’s global warming is unlike the last 2,000 years of climate shifts

    Temperatures at the end of the 20th century were hotter almost everywhere on the planet than in the previous two millennia.