Year in Review

  1. Space

    These discoveries from 2021, if true, could shake up science

    Discoveries in 2021, from hidden subatomic particles to the oldest animal fossils, could shake up science. But more evidence is needed to confirm them.

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  2. Animals

    Here are 7 incredible things we learned this year that animals can do

    From wielding weapons to walking on the underside of water, these are the creature capabilities that most impressed us in 2021.

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  3. Science & Society

    6 surprising records science set in 2021

    Ancient mammoth DNA and a new source of gravitational waves set new records this year.

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  4. Health & Medicine

    These are the viruses that mRNA vaccines may take on next

    Now that mRNA vaccines have proved effective against the coronavirus, scientists are taking aim at influenza, HIV and other viruses.

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  5. Health & Medicine

    Why it matters that health agencies finally said the coronavirus is airborne

    Recognizing that the coronavirus spreads through the air reinforced the importance of wearing masks and altered public health recommendations.

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  6. Health & Medicine

    Why the coronavirus’s delta variant dominated 2021

    Mapping delta’s unique group of mutations and how they enhance the virus’s life cycle show why the variant spread so easily and caused so much havoc.

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  7. Health & Medicine

    In 2021, COVID-19 vaccines were put to the test. Here’s what we learned

    Vaccines can’t single-handedly end the pandemic, but they are still essential in the fight against the coronavirus.

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  8. Animals

    Cicada science heats up when Brood X emerges. 2021 was no exception

    Mating mobs of big, hapless, 17-year-old cicadas made for a memorable spring in the Eastern United States

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  9. Anthropology

    2021 research reinforced that mating across groups drove human evolution

    Fossils and DNA point to mixing and mingling among Homo groups across vast areas.

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  10. Science & Society

    2020’s science superlatives include the oldest, highest and grossest discoveries

    From the earliest modern bird to the highest-temperature superconductor, science set plenty of records in 2020.

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  11. Health & Medicine

    Against all odds, 2020 featured some good health news

    Good health news in 2020 included a first treatment for peanut allergies, a rare self-cure for HIV, and an Ebola outbreak ends.

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  12. Space

    Here are the highlights from a busy year in space launches

    Satellites, Mars rovers and astronauts launched into space in 2020.

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