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Science

Boeing 'ran out of time' on Starliner: astronaut stuck on ISS

A U.S. astronaut stuck on the International Space Station said Friday he believed Boeing's Starliner could have carried him home, if more time had been available to work through the beleaguered spacecraft's issues.

Last week, Barry "Butch" Wilmore and Sunita "Suni" Williams watched the Boeing Starliner they rode to the ISS three months prior head back to Earth without them.

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High doses of Adderall linked with heightened risk of psychosis and mania

Adderall is an effective treatment for attention deficit hyperactivity disorder (ADHD), but a sharp rise in US prescriptions over the past two decades has sparked concerns among researchers about rare but serious side effects.

In a striking new study published in the American Journal of Psychiatry on Thursday, a team led by psychiatrist Lauren Moran of Mass General Brigham in Boston found that individuals taking high doses of the stimulant face more than a fivefold increased risk of developing psychosis or mania.

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'Ecocide' on Easter Island never took place, studies suggest

Two recent studies have cast doubt on a popular theory that the ancient residents of Easter Island suffered a societal collapse because they overexploited their natural resources, an event often labelled one of history's first "ecocides".

Easter Island, located in the Pacific Ocean 3,700 kilometers (2,300 miles) from the coast of Chile, is best known for the enigmatic "moai" stone statues of humans carved by the Rapanui people.

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Was a lack of get-up-and-go the death of the Neanderthals?

A new study posits a very surprising answer to one of history's great mysteries -- what killed off the Neanderthals?

Could it be that they were unadventurous, insular homebodies who never strayed far enough from home?

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‘Difficult’ children only slightly more likely to have insecure attachments with parents

Children with difficult temperaments, including personality tendencies such as irritability and having a hard time being comforted, are only slightly more likely than other children to have insecure attachment relationships with one or both of their parents, according to our research. This finding refutes the long-standing notion held by many psychologists that early attachment behaviors are mainly determined by a child’s temperament.

An attachment relationship reflects the child’s expectations about their caregiver in times of need. A secure attachment is likely if a caregiver is consistently available and emotionally supportive when the child is alarmed. However, if a child learns that their caregiver will not be there when needed or will not effectively soothe them, chances are they will develop an insecure attachment relationship with that caregiver.

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Crystals hold a secret history of volcanoes – and clues about future eruptions

Imagine you had a crystal ball that revealed when a volcano would next erupt. For the hundreds of millions of people around the world who live near active volcanoes, it would be an extremely useful device.

As it turns out, certain crystals really can help us forecast volcanic eruptions. These crystals are produced in molten rock as it travels from deep inside Earth to the surface.

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Methane rising faster than other greenhouse gases: researchers

Concentrations in the atmosphere of the powerful greenhouse gas methane are rising at an accelerating pace, threatening efforts by countries to meet their climate targets, researchers warned on Tuesday.

"Methane is rising faster in relative terms than any major greenhouse gas and is now 2.6-fold higher than in pre-industrial times," said an international group of researchers under the aegis of the Global Carbon Project in a study published in Environmental Research Letters.

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Long COVID inflicts deep scars on the lungs, targeting specific cells could reverse damage

The long-term effects of respiratory viral infections such as COVID-19 are a major public health burden. Some estimates suggest over 65 million people around the world suffer from long COVID-19.

Efforts to better understand this condition, however, have been hampered by its ability to affect multiple organ systems, such as those involving the lungs, brain and heart. This is further complicated by the lack of animal models that can sufficiently mimic the disease.

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Cats and dogs both like to play fetch − it’s rooted in their hunting instincts

Many people have seen dogs fetch, but cats like to get into the game too. Despite their very different hunting and play styles, fetching appears to combine elements of predatory and social behavior for both species.

Although their domestication histories and natural behaviors are very different, cats and dogs share many similarities. Both species are predators, live closely with humans and are capable of enjoying rich social experiences with us.

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Awe and trepidation as AI comes for smartphones

Matthew Day was keen to find out if an artificial intelligence-packed Google Pixel 9 smartphone could tell him a great local fishing spot.

California Assemblywoman Gail Pellerin had it whip up a playful picture of her dog in front of the state capitol building.

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Greenpeace sounds alarm on microplastics ingested by Hong Kong wildlife

Microplastic particles turned up in the vast majority of waste samples taken from Hong Kong wildlife in a Greenpeace study, the group said Monday, suggesting that animals still ingest plastics even if they are not feeding in urban areas.

The report was released ahead of November talks in South Korea, where governments will be looking to seal a potentially groundbreaking deal tackling the problem of plastic pollution.

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Thanks to Reddit, a new diagnosis is bubbling up across the Nation

In a video posted to Reddit this summer, Lucie Rosenthal’s face starts focused and uncertain, looking intently into the camera, before it happens.

She releases a succinct, croak-like belch.

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Old satellite to burn up over Pacific in 'targeted' re-entry first

After 24 years diligently studying Earth's magnetic field, a satellite will mostly burn up over the Pacific Ocean on Sunday during a "targeted" re-entry into the atmosphere, in a first for the European Space Agency as it seeks to reduce space debris.

Since launching in 2000, the Salsa satellite has helped shed light on the magnetosphere, the powerful magnetic shield that protects Earth from solar winds -- and without which the planet would be uninhabitable.

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