Summer 2023 was northern hemisphere's hottest for 2,000 years, tree rings show
The summer of 2023 was the warmest in the non-tropical areas of the northern hemisphere for 2,000 years, a new study has shown.
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When the first warm-blooded dinosaurs roamed Earth
Scientists once thought of dinosaurs as sluggish, cold-blooded creatures. Then research suggested that some could control their body temperature, but when and how that shift came about remained a mystery.
Cameras reveal wombat burrows can be safe havens after fire and waterholes after rain
Australia's unprecedented Black Summer bushfires in 2019–20 created ideal conditions for misinformation to spread, from the insidious to the absurd.
Pyramids built along long-lost river, scientists discover
Scientists have discovered a long-buried branch of the Nile river that once flowed alongside more than 30 pyramids in Egypt, potentially solving the mystery of how ancient Egyptians transported the massive stone blocks to build the famous monuments.
Composition of gut microbiota could influence decision-making
The way we make decisions in a social context can be explained by psychological, social, and political factors. But what if other forces were at work? Hilke Plassmann and her colleagues from the Paris Brain Institute and the University of Bonn show that changes in gut
What Is Pasteurization, and How Does It Keep Milk Safe?
The pasteurization process was invented in the 1860s and continues to keep people safe from a range of foodborne illnesses
Saturday Citations: Mediterranean diet racks up more points; persistent quantum coherence; vegan dogs
This week, we reported on the birth throes of black holes, the questionable assertions of a study about vegan dogs and a technique for observing entanglement without breaking quantum coherence.
Researchers realize multiphoton electron emission with non-classical light
Strong field quantum optics is a rapidly emerging research topic, which merges elements of non-linear photoemission rooted in strong field physics with the well-established realm of quantum optics. While the distribution of light particles (i.e., photons) has been widely
Hurricanes Caused Lost Income among at Least Half of Local Residents
Nearly half of residents lost income after a hurricane, a new study shows. Most were low-paid hourly workers in storefront shops
How hunting may have turned humans into long-distance runners
Researchers have discovered hundreds of historical accounts of humans hunting prey by chasing them down over long distances, which some believe is why we evolved our unique talent for endurance running.
Why so many animals, including our pets, have a third eyelid—yet humans don't
Our family dog used to have a rather noticeable extra eyelid that became especially apparent when he dozed off, usually upturned on the rug. This is the fleshy curtain seen at the corner of each eye, closest to the nose. It's also commonly called the nictitating (literally
Global coral bleaching event expanding to new countries: Scientists
The massive coral bleaching episode signaled by US authorities last month is expanding and deepening in reefs around the globe, scientists warned Thursday.
'Dad's going up in a rocket!' French businessman set for launch
He arrived in Texas, tried on his flight suit for the first time, and is now preparing to live out his childhood dream.
Physicists propose path to faster, more flexible robots
In a May 15 paper released in the journal Physical Review Letters, Virginia Tech physicists revealed a microscopic phenomenon that could greatly improve the performance of soft devices, such as agile flexible robots or microscopic capsules for drug delivery.
First crewed flight of Boeing Starliner postponed again
The first crewed launch of Boeing's Starliner to the International Space Station has been delayed again due to a technical issue, NASA said Friday.
Death toll from Texas storm rises to 7
The death toll from severe weather that lashed the Texas city of Houston has risen to seven, authorities said Friday.
'Danger behind the beauty': More solar storms could be heading our way
Tourists normally have to pay big money and brave cold climates for a chance to see an aurora, but last weekend many people around the world simply had to look up to see these colorful displays dance across the sky.
Physicists are grappling with their own reproducibility crisis
A contentious meeting of physicists highlighted concerns, failures and possible fixes for a crisis in condensed matter physics
Better medical record-keeping needed to fight antibiotic overuse
A lack of detailed record-keeping in clinics and emergency departments may be getting in the way of reducing the inappropriate use of antibiotics, a pair of new studies suggests. In one of the studies, about 10% of children and 35% of adults who got an antibiotic prescription
Global life expectancy to increase by nearly 5 years by 2050 despite geopolitical, metabolic, and environmental threats
The latest findings forecast that global life expectancy will increase by 4.9 years in males and 4.2 years in females between 2022 and 2050. Increases are expected to be largest in countries where life expectancy is lower, contributing to a convergence of increased life
Modern plant enzyme partners with surprisingly ancient protein
Scientists have discovered that a protein responsible for the synthesis of a key plant material evolved much earlier than suspected. This new research explored the origin and evolution of the biochemical machinery that builds lignin, a structural component of plant cell walls
Clinicians report success with first test of drug in a patient with life-threatening blood clotting disorder
A recombinant form of human ADAMTS13 approved for a different condition helped to save the life of a young mother with immune thrombotic thrombocytopenic purpura.
Repeat COVID-19 vaccinations elicit antibodies that neutralize variants, other viruses
A study has found that repeat vaccination with updated versions of the COVID-19 vaccine promotes the development of antibodies that neutralize a wide range of variants of the virus that causes COVID-19, as well as related coronaviruses.
Sweet taste receptor affects how glucose is handled metabolically by humans
The sweet-taste receptor might be the first stop in a metabolic surveillance system for sugar. The receptor is also expressed in certain intestinal cells, where it may facilitate glucose absorption and assimilation, as part of this system. A team found that stimulation and
How heatwaves are affecting Arctic phytoplankton
The basis of the marine food web in the Arctic, the phytoplankton, responds to heatwaves much differently than to constantly elevated temperatures. This has been found by the first targeted experiments on the topic. The phytoplankton's behavior primarily depends on the cooling
A Model Toadlet
A tiny, charismatic frog in Brazil is revealing secrets of a killer fungus. The post A Model Toadlet appeared first on Nautilus .