Humans

  1. a map of the milky way with dots that might indicate anti-matter stars
    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. a line of people waiting at a COVID-19 testing site
    Health & Medicine

    The omicron variant is surging. Here’s what we’ve learned so far

    Omicron is better at evading virus-attacking antibodies than previous coronavirus variants, but there are signs booster shots might help curb symptoms.

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  3. image of the remains of a church on a hillside in Greenland
    Climate

    Vikings may have fled Greenland to escape rising seas

    Vikings abandoned Greenland in the 15th century. Lower temperatures, an expanding ice sheet and rising sea levels may have played a role in their departure.

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  4. photo of stacked boxes of BinaxNOW antigen tests
    Health & Medicine

    COVID-19 testing is complicated right now. Here are answers to 6 big questions

    There are two major categories of COVID-19 diagnostic tests. Here’s what you need to know when deciding whether to take an at-home test or head to the doctor.

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  5. an illustration of a COVID-19 mRNA vaccine
    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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  6. photo of someone holding a vial of the J&J covid vaccine with a syringe
    Health & Medicine

    The CDC recommends mRNA COVID-19 vaccines over J&J’s, citing fewer risks

    Pfizer’s and Moderna's vaccines are more effective and cause fewer serious side effects than Johnson & Johnson’s jab, new data show.

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  7. A device captures aerosols from the breath of a COVID patient
    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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  8. illustration of the coronavirus lifecycle
    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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  9. image of archaeologists excavating at a site in Germany
    Archaeology

    Neandertals were the first hominids to turn forest into grassland 125,000 years ago

    Neandertals’ campfires, hunting and other activities altered the land over 2,000 years, making them the first known hominids to impact their environs.

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  10. illustration of a person climbing a mountain with vaccine syringes as poles
    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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  11. a person nodding off in a chair, holding a cup over the side
    Health & Medicine

    How sleep may boost creativity

    In a lab experiment, people who had fallen into a shallow sleep were more likely than non- or deep sleepers to later discover a sly math trick.

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  12. an illustration of viruses attacking a rod-shaped bacterium
    Microbes

    A bacteria-virus arms race could lead to a new way to treat shigellosis

    As bacteria that cause shigellosis evolve to escape a virus, the microbes may become less deadly, a hopeful sign for “phage therapy.”

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