Year in Review
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SpaceThese 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.
By Aina Abell -
AnimalsHere 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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Science & Society6 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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Health & MedicineThese 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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Health & MedicineWhy 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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Health & MedicineWhy 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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Health & MedicineIn 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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AnimalsCicada 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
By Susan Milius -
Anthropology2021 research reinforced that mating across groups drove human evolution
Fossils and DNA point to mixing and mingling among Homo groups across vast areas.
By Bruce Bower -
Science & Society2020’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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Health & MedicineAgainst 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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SpaceHere are the highlights from a busy year in space launches
Satellites, Mars rovers and astronauts launched into space in 2020.