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Science

Why rapid COVID tests aren't more accurate, and how scientists hope to improve them

Why rapid COVID tests aren't more accurate, and how scientists hope to improve them

Recent research — and plenty of anecdotes — suggest some rapid tests may be less sensitive at detecting the omicron variant if you don't have symptoms. Here's how researchers hope to make them more effective.
by Maria Godoy

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A prehistoric eruption may help recalibrate our timeline of human origins in Africa

A prehistoric eruption may help recalibrate our timeline of human origins in Africa

Some of the oldest human remains ever unearthed are the Omo 1 bones found in Ethiopia. For decades, their precise age has been debated, but a new study may have the answer.
by Mano Sundaresan and Patrick Jarenwattananon

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Why humans are losing the race against superbugs

Why humans are losing the race against superbugs

A new report in The Lancet finds that in 2019, antibiotic-resistant bacteria killed 1.2 million people — more than were killed by malaria or HIV/AIDS. The problem is mounting in lower-income nations.
by Jason Beaubien

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Medicare limits coverage of $28,000-a-year Alzheimer's drug

Medicare limits coverage of $28,000-a-year Alzheimer's drug

Tuesday's decision from the Centers for Medicare and Medicaid Services is a major development in the nation’s tug-of-war over the fair value of new medicines that offer tantalizing possibilities but come with prohibitive prices.
by The Associated Press

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Who gets to use NASA's James Webb Space Telescope? Astronomers work to fight bias

Who gets to use NASA's James Webb Space Telescope? Astronomers work to fight bias

With the James Webb Space Telescope safely deployed, many scientists want to use it. To minimize the effect of unconscious biases, they go through a process developed for the Hubble Space Telescope.
by Nell Greenfieldboyce

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Scientists vacuum zoo animals' DNA out of the air

Scientists vacuum zoo animals' DNA out of the air

Researchers who detected environmental DNA, or eDNA, in two zoos say the technique could one day be used to look for endangered species in remote locations in the wild.
by Geoff Brumfiel

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