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The Latest Breaking News from LiveScience

Scientists made AI agents ruder — and they performed better at complex reasoning tasks

A new project allowed AI chatbots to interrupt, stay silent or speak up the way humans do in conversation, and it made them smarter and more accurate.

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Giant string of organic molecules on Mars may be one of the best signs of life yet

A new NASA analysis concludes that it is "reasonable to hypothesize" that living things could have formed the odd organic molecules discovered on Mars.

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Paleolithic humans invented an 'early predecessor to writing' at least 40,000 years ago, carved signs suggest

A statistical analysis of a series of signs carved into artifacts from around 40,000 years ago suggests humans developed proto-writing in the Stone Age.

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Did the Vikings reach Maine?

An 11th-century Norse coin found in Maine raises the question of whether the Vikings landed there.

LiveScience

Stone Age boy in Sweden was buried in deerskin and a woodpecker headdress, archaeologists discover

A new method of studying the contents of soil samples has revealed Stone Age people in Sweden were buried in decorated fur-and-feather clothing.

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Acing this new AI exam — which its creators say is the toughest in the world — might point to the first signs of AGI

Humanity’s Last Exam is a PhD-level benchmark designed to test the limits of AI reasoning. Although Google’s Gemini 3 scored a staggering 48.4%, experts stress that this does not indicate the arrival of artificial general intelligence (AGI).

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The sun just experienced its first 'spotless days' in 4 years — but we're not in the clear yet

Earlier this week, the number of visible sunspots on our home star fell to zero for the first time in 1,335 days. This normally indicates a period of greatly reduced solar activity, but it's still too soon to relax, experts say.

LiveScience

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NASA announces sweeping overhaul of Artemis return to moon, targeting two 2028 landings and a 2027 in-orbit docking flight

A major shakeup to NASA's Artemis program will step rocket launches up to an annual basis, and discard a Boeing-designed upper stage.

LiveScience

Inherited diseases don't work like we thought they did

"Monogenic" diseases, triggered by mutations in just one gene, may actually be more complex than scientists thought.

LiveScience

'It doesn't lie. So who are you?': What happens when DNA tests show a woman is not the mother of the child she gave birth to?

"At first, I kind of laughed … But they were serious. I could just see the seriousness in their faces." In this book excerpt, Lise Barnéoud explores the limitations of DNA testing.

LiveScience

Science history: Carbon-14 is discovered, opening a window into past civilizations — Feb. 27, 1940

Martin Kamen and Samuel Ruben's discovery of the radioactive isotope carbon-14 in 1940 helped usher in a new era of dating artifacts from past civilizations.

LiveScience

Humans and Neanderthals interbred — but it was mostly male Neanderthals and female humans who coupled up, study finds

A preference for pairings between male Neanderthals and female Homo sapiens may answer the question of why there are "Neanderthal deserts" in human chromosomes.

LiveScience

'Revolutionary': Vera C. Rubin Observatory found 800,000 objects of interest in a single night

The Vera C. Rubin Observatory sent scientists nearly 1 million astronomy alerts in one night, showing off changes in the sky. Eventually, the telescope is expected to reach 7 million alerts per night.

LiveScience

Giant 'spiderwebs' on Mars contain tiny egg-like structures that scientists 'can't quite explain,' NASA rover reveals

New photos captured by NASA's Curiosity rover show that Mars' giant, spiderweb-like "boxwork" features are covered in tiny, never-before-seen nodules that bear a striking resemblance to arachnid eggs. And researchers are struggling to explain them.

LiveScience

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Fresh look at Apollo moon rocks solves decades-old mystery about the moon's magnetic field

The lunar rocks collected by Apollo astronauts suggested the moon had a strong magnetic field. A new analysis shows the opposite.

LiveScience

Babies weren't supposed to be mourned in the Roman Empire. These rare liquid-gypsum burials prove otherwise.

Despite historical records saying otherwise, Roman babies were mourned at death, research into unique plaster burials from York reveals.

LiveScience

Chinese astronauts describe moment a crack was discovered on Shenzhou-20 spacecraft

Taikonauts from the ill-fated Shenzhou-20 mission have described what happened when they discovered cracks on their spacecraft as they prepared to depart China's Tiangong space station last year.

LiveScience

Kazakhstan plants tens of thousands of trees in giant effort to reintroduce tigers

Kazakhstan planted 37,000 seedlings and cuttings in South Balkhash last year to prepare for the return of its tigers, which disappeared more than 70 years ago.

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LiveScience

We now know why shoes squeak, and it involves miniature lightning bolts

Harvard engineers think they've found the reason basketball shoes squeak, and it's due to pockets of friction between the rubber and the court.

LiveScience

'Rare and enigmatic' structures found at the Milky Way's center in largest-ever map of its kind

Scientists using the ALMA telescope have created the most-detailed-ever map of the Milky Way's chaotic center. The observations could open a window to the ancient universe as it appeared shortly after the Big Bang.

LiveScience

COVID-19 vaccination during pregnancy may cut risk of preeclampsia

A study of more than 6,500 mothers found that COVID-19 vaccination during pregnancy significantly lowered the risk of preeclampsia, a dangerous blood-pressure disorder.

LiveScience

Diagnostic dilemma: A parasite never before seen in humans was behind a woman's lung infection, organ damage and forgetfulness

A woman developed a persistent infection, and doctors couldn't pinpoint the cause for many months.

LiveScience

James Webb telescope spots giant auroras rolling through Uranus' atmosphere

JWST observed Uranus for nearly a full rotation, charting the planet's upper atmosphere and magnetic environment for the first time.

LiveScience

Scientists find genetic 'switch' in mice that turns caring dads into violent brutes

A new study suggests that the Agouti gene in the brains of male African striped mice can act as a molecular "switch," making them caring or violent toward their young.

LiveScience

14,000-year-old ivory tools found in Alaska hint at how Clovis ancestors first arrived in the New World

Ancient artifacts unearthed in Alaska revealed migrants from Asia might have come to the Americas via an inland route, and not a coastal path.

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