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  1. Archaeology

    Excavations show hunter-gatherers lived in the Amazon more than 10,000 years ago

    Early foragers may have laid the foundation for farming’s ascent in South America’s tropical forests.

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  2. Particle Physics

    This is the slowest radioactive decay ever spotted

    Scientists have made the first direct observations of an exotic type of radioactive decay called two-neutrino double electron capture.

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  3. Health & Medicine

    A neural implant can translate brain activity into sentences

    With electrodes in the brain, scientists translated neural signals into speech, which could someday help the speechless speak.

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  4. Life

    See beautiful fossils from top Cambrian sites around the world

    Troves of Cambrian fossils are known at more than 50 places around the world. Here are five standout spots.

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  5. Planetary Science

    NASA’s Mars InSight lander may have the first recording of a Marsquake

    NASA’s InSight mission appears to have detected a Marsquake for the first time.

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  6. Humans

    Medicaid expansion may help shrink health gaps between black and white babies

    States that expanded Medicaid as part of the Affordable Care Act shrunk racial disparities between black and white infants, a new study shows.

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  7. Life

    ‘An Elegant Defense’ explores the immune system’s softer side

    The lives of four people helped or harmed by their body’s natural defenses illustrate why immunology has become one of the hottest fields in science.

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  8. Astronomy

    Seeing very far away and hitting closer to home

    Editor in Chief Nancy Shute discusses the first-ever image of a black hole and what can be done to help young children with anxiety.

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  9. Planetary Science

    Readers ponder Opportunity’s future, animal consciousness and more

    Readers had questions about NASA’s Opportunity rover, pollen shapes and more.

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  10. Health & Medicine

    How an obscure sexually transmitted parasite tangos with the immune system

    Scientists are working out how Trichomonas vaginalis, one of the most prevalent sexually transmitted infections, causes problems in women and men.

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  11. Planetary Science

    Mercury has a massive solid inner core

    The distribution of Mercury’s mass and small stutters in the planet’s spin suggest it has a giant solid inner core.

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  12. Archaeology

    Ancient sculptors made magnetic figures from rocks struck by lightning

    Carved ‘potbelly’ stone sculptures suggest people in what’s now Guatemala knew about magnetism more than 2,000 years ago.

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