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CDC advisory panel unanimously approves expanded COVID vaccine boosters

Enlarge (credit: iStock / Getty Images) On Thursday, the Centers for Disease Control's expert advisory committee on vaccines met to vote on new guidelines for the use of boosters to sustain the immunity provided by the COVID-19 vaccines in use in the US. The day prior, the Food and Drug Administration (FDA) had issued an emergency use...

Poaching drove the evolution of tusk-free elephants

Enlarge (credit: Bisakha Datta / Getty Images) In the wake of severe poaching problems, some wildlife authorities have resorted to removing the horns of rhinos in order to eliminate the reason they're poached in the first place. It turns out that, in the wake of a severe poaching event, evolution came up with a similar solution. A...

Watch this wooden knife cut effortlessly through juicy, medium-well-done steak

Researchers at the University of Maryland (UMD) have figured out a simple, affordable method for creating natural wood materials that are 23 times harder than typical woods, according to a new paper published in the journal Matter. They tested their hardened wood samples by fashioning a wooden knife and several wooden nails and found that the performance...

Brazil’s Bolsonaro accused of “crimes against humanity” over COVID response

Enlarge / BRASILIA, BRAZIL - OCTOBER 19: President of Brazil Jair Bolsonaro coughs during a press conference. (credit: Getty | Andressa Anholete) A Brazilian Senate committee investigating the country's response to the COVID-19 pandemic has recommended that President Jair Bolsonaro face nine criminal charges, including "crimes against...

Using recycled cathodes makes better lithium batteries, study finds

Enlarge (credit: Aurich Lawson | Getty Images) The problem of what to do with old batteries comes up in many discussions about the pros and cons of electric cars. Most people's first preference is to reuse them, repurposing the cells for a second life as stationary storage. But at some point, even those batteries will reach their end...

Trapped in amber: Fossilized dinosaur-era crab bridges evolutionary gap

Enlarge Once upon a time, during the Cretaceous period, a tiny crab wandered out of the water onto land and somehow got trapped in amber, which preserved it for 100 million years. At least that's what a team of scientists hypothesize might have happened in a new paper announcing their discovery of the oldest known modern-looking crab...

Could search engines be fostering some Dunning-Kruger?

Enlarge (credit: Getty Images | Aurich Lawson) Many of us make jokes about how we've outsourced part of our brain to electronic devices. But based on a new paper by the University of Texas at Austin's Adrian Ward, this is just a variation on something that has been happening throughout human history. No person could ever learn everything...

Vikings were in North America by 1021 CE

Enlarge / Aerial image of L'Anse aux Meadows, Newfoundland, Canada. (credit: Glenn Nagel Photography) Centuries before Christopher Columbus stumbled across the Bahamas, the Vikings established a beachhead at L’Anse Aux Meadows, a site on the northern peninsula of what is now Newfoundland, Canada. A recent study narrows down the date...

It’s not the heat, it’s the humidity that grounded Boeing’s Starliner

Enlarge / The Boeing Starliner spacecraft to be flown on Orbital Flight Test-2 is seen at NASA’s Kennedy Space Center in Florida on June 2, 2021. (credit: NASA) NASA and Boeing officials said Tuesday that they have successfully removed two valves from the Starliner spacecraft and have shipped them to Marshall Space Flight Center in...

X-ray analysis reveals hidden composition under iconic portrait of the Lavoisiers

Enlarge The French 18th-century chemist Antoine Lavoisier is a complicated historical figure. Scientifically, of course, he is an undisputed giant, helping usher in the chemical revolution as the field shifted from a qualitative to a quantitative approach, among many other achievements. He was also a wealthy nobleman and tax collector...

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