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  1. 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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  2. 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.

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  3. Life

    This is the first fungus known to host complex algae inside its cells

    In the lab, an alga and a fungus teamed up to exchange food, similar to lichens.