A new study published in Nature suggests that Earth's last ice age may provide crucial insights into future El Niño weather events. Researchers used ancient shells of marine organisms and advanced climate modeling to shed light on how El Niño patterns might change in a warming world.
Tree-ring data reveal that periodic shifts in strong winds high above the Earth's surface have driven opposite climates in different parts of Europe for the past 700 years. This research provides critical data to improve climate models, comparing past patterns to current trends and societal impacts.
Researchers have observed a uniquely inflated and asymmetric exoplanet called WASP-107b using the James Webb Space Telescope. The exoplanet has an east-west asymmetry in its atmosphere, which may help scientists understand its climate and atmospheric dynamics.
A new study provides further evidence that SARS-CoV-2, the virus responsible for COVID-19, likely originated from animals sold at the Huanan Seafood Market in Wuhan, China. The analysis of genetic data found that wildlife species such as raccoon dogs and civet cats were present at the market and may have carried the virus.
The study presents a curve of global mean surface temperature that reveals significant fluctuations in Earth's temperature over the past 485 million years. The research confirms that carbon dioxide is strongly correlated with global temperatures across geological time.
Researchers at the University of Arizona developed a transmission electron microscope with attosecond temporal resolution, allowing scientists to observe electron motion in real-time. This breakthrough enables studies of ultrafast processes at the atomic level, paving the way for advancements in physics and chemistry.
A University of Arizona study has found a consistent pattern: Animals with higher body temperatures are more likely to evolve into herbivores. This relationship holds true across major land vertebrate groups, and is linked to the unique digestive challenges posed by plant-based diets.
Researchers used low-intensity ultrasound to target and alter the default mode network of the brain, reducing connectivity and enhancing mindfulness. The technique, called transcranial-focused ultrasound (TFUS), can induce meaningful effects with just five minutes of stimulation.
The study reveals regional differences in Amazon drought response due to local environments and tree properties. The southern Amazon, with shallow water tables, is more vulnerable to drought, while the northern region, with deeper roots and less fertile soil, is more resilient.
A study by researchers at the University of Arizona found that veterans paired with service dogs for three months had significantly lower self-reported PTSD symptom severity, anxiety, depression, and feelings of isolation. They also experienced a 66% lower odds of receiving a PTSD diagnosis.
Researchers captured a volcanic event on Io using the Large Binocular Telescope's SHARK-VIS instrument, achieving higher resolution than ever before with Earth-based observations. The images reveal surface details equivalent to taking a picture of a dime-sized object from 100 miles away.
Researchers at the University of Arizona and Sandia National Laboratories have developed a new class of synthetic materials that enable giant nonlinear interactions between phonons. This breakthrough could lead to smaller, more efficient wireless devices, such as smartphones or other data transmitters.
A new study led by the University of Arizona finds that early-life struggles can cut adult lifespan in red squirrels by at least 14%, but a natural food boom may buffer against these effects. The researchers suggest that climate change could disrupt this dynamic, potentially affecting animal resilience.
Researchers found that human-induced fluid fluxes in the deep subsurface are higher than natural rates, posing environmental impacts. The study highlights the need to manage the subsurface responsibly for a green transition and sustainable future.
Researchers at the University of Arizona used computer simulations and spacecraft data to study the moon's geology, finding that a dense layer of titanium-rich material sank into the interior and rose on the near side. The findings suggest that the moon 'turned itself inside out' during its formation.
A new study using the James Webb Space Telescope has captured the first-ever image of a planet-forming disk's gas dispersal, providing insights into how planets form in our solar system. The observations reveal that the inner disk of T Cha is evolving on very short timescales, differing from earlier spectra detected by Spitzer.
Researchers at University of Arizona have developed a novel approach to combat mosquito-borne diseases by targeting the unique alkaline environment of larval mosquito guts. The study uses specially designed chemical compounds to modify proteins, hindering food digestion and growth.
A University of Arizona-led study explores sulfur's significance in the emergence of life on Earth, shedding light on its possible role as an RNA precursor. The research suggests that sulfur's reactivity could have hindered its availability for origin-of-life chemistry.
Research reveals a rich diversity of beneficial fungi living in boreal forest trees, with implications for forest health. The findings suggest that these fungi are adapted in highly specific ways to their local conditions, making them sensitive to future climate change.
Researchers found that ponderosa pine trees suffer from warming, contradicting the space-for-time substitution method. Climate change is happening faster than trees can adapt, putting them at risk of extinction.
A new study by University of Arizona psychologists investigated the possible scenarios leading to waning memory in older people. The researchers found that the hippocampus contributes to the difficulty in learning new environments and locations in some older adults.
Researchers at the University of Arizona developed a low-power wide area network (LPWAN) system that enables wearables to transmit health data long distances without cell coverage. The system, called biosymbiotic, has the potential to improve remote monitoring in underserved communities and make digital medicine more accessible
A research team led by a University of Arizona faculty member found that violating gender stereotypes in apologies leads to more effective communication. Women delivering masculine-style apologies were seen as displaying higher levels of assertiveness and enhancing their perceived competence.
Researchers analyzed contestant behavior on the British TV show 'Mastermind' to examine human physiology under conditions of stress. They found that blinking acts like a 'punctuation of thought,' reducing during periods of intense thinking, and increased blink rate in stressed contestants.
Researchers studied how 4-year-old tree species respond to extended drought and heat, finding that different species have varying levels of drought tolerance. The study's findings can help shape forest management policy and understand future landscape changes.
A new study by UArizona researchers found that solitude does not correlate with feelings of loneliness unless a person spends 75% of their time alone. The study also highlights the importance of social connections for human health and introduces a new method to measure social activity using a smartphone app.
Researchers found a rare pathway allowing a moon fragment to reach Earth's quasi-satellite orbit. The study suggests that many more lunar fragments remain to be discovered among the near-Earth asteroid population.
Researchers have identified that ancient quakes occurred in shallow faults on the Puget Lowlands in western Washington, which could lead to another devastating event. The study used tree rings to pinpoint the dates of these quakes and found a link between them, suggesting regional hazard models may need to be updated.
Researchers found that climate-related extinction occurred in just seven years, tripling the average extinction rate over the past 42 years. The study used genomic data from Yarrow's spiny lizards to understand how genetic variation affects adaptation to climate change.
A new study from the University of Arizona has found that remembering events can trigger theta oscillations in the brain's hippocampus region, suggesting that memory is a strong driver of these rhythmic signals. This discovery could lay the foundations for cognitive impairment therapy and improve memory.
Scientists have discovered a young exoplanet, MWC 758c, that may be generating the spiral arms in its infant planetary system. The planet's massive size is estimated to be at least twice the mass of Jupiter, yet it was invisible to other telescopes due to its reddish color, which makes it more difficult to detect.
A University of Arizona study found that creative individuals are more likely to engage with their thoughts during downtime, using association and free-flowing ideas. This allows them to generate innovative concepts and enjoy idle time without feeling bored.
Scientists discover threadlike arrangement of galaxies, anchored by a quasar, which marks the first time such a structure has been observed at 6% of its current age. The findings provide clues about the fundamental architecture of the universe and the formation of supermassive black holes.
Researchers found tiny salt crystals in an asteroid sample, indicating the presence of liquid water. The discovery challenges previous assumptions that ordinary chondrite asteroids lack hydrated minerals.
Researchers at the University of Arizona studied the impact of grief on heart function and found a significant association between grief severity and elevated systolic blood pressure response. Grief can cause a marked rise in blood pressure, increasing the risk of cardiac events.
Researchers at the University of Arizona developed an algorithm to measure wind by analyzing water vapor movements, providing a novel solution for forecasting extreme weather events. The method uses data from two operational satellites of NOAA and achieves higher resolution than traditional methods.
Researchers achieved optical switching of a light signal at attosecond speeds, exceeding data transfer speeds by 1 million times. This breakthrough enables the development of ultrafast optical electronics and could increase data processing speed in long-distance communications.
University of Arizona engineers create a communication network allowing robots to explore subsurface environments independently, deploying miniaturized sensors as they traverse caves. The 'breadcrumb-style' system enables swarms of individual robots to navigate convoluted environments without losing contact.
Researchers used a 3D radar scan to reveal that Malaspina Glacier is undercut by channels, making it more vulnerable to melting and potentially contributing significantly to global sea level rise. The glacier's bulk sits below sea level, and its coastal barrier erodes, allowing ocean water to access the glacier and accelerate its retreat.
University of Arizona engineers create autonomous vehicle system that allows robots to scout out underground habitats on other planets. The 'Breadcrumb-Style Dynamically Deployed Communication Network' paradigm enables robots to work together without human input, addressing NASA's space technology grand challenges.
A University of Arizona-led study found that expectant lemur dads see a significant increase in estradiol during their mates' pregnancies, which may help prepare them for parenting. The hormone spike occurs mainly in the third trimester and is associated with increased maternal sensitivity.
Researchers at the University of Arizona found that rock ants follow a methodical search strategy, combining systematized meandering with random movement to efficiently explore new areas. This unique behavior may provide insights into the evolution of exploration strategies in other species.
A new study suggests that office noise levels between 50 decibels can boost physiological well-being, while loud noises above 50 decibels decrease it. Researchers found that even low sound levels trigger a higher stress response, highlighting the need for optimal acoustics in workplace design.
A study by the University of Arizona found that when participants were in a negative mood, they were more careful and analytical, scrutinizing what was stated in a text. In contrast, a happy mood led to a less analytical state, with participants relying on default world knowledge.
A new study suggests that an orbiting space probe could provide definitive answers about the presence of life on Enceladus' ocean. The team mapped out how a hypothetical mission could gather data from the moon's plumes, which are thought to contain organic molecules and methane.
Using supercomputers and machine learning, researchers created simulations of millions of computer-generated universes to test astrophysical predictions. The study found that supermassive black holes grow in the same way as their host galaxies, revealing a long-elusive relationship.
Scientists from the University of Arizona have discovered a giant active mantle plume pushing the surface of Mars upward, causing earthquakes and volcanic eruptions. The finding suggests that Mars' deceptively quiet surface may hide a more tumultuous interior than previously thought.
A new study on a 525-million-year-old fossil has shed light on the origin and composition of arthropod heads, resolving a century-old debate. The discovery of a delicately preserved nervous system in the fossil of Cardiodictyon catenulum, a tiny sea creature, suggests that the brain and trunk nervous system evolved separately.
A new study by the University of Arizona found that tropical cyclones often follow extreme heat, which can be a major hazard after a storm. The research team analyzed 53 tropical cyclones and found that cities' heat index values were always warmer than average after the storm.
A new type of pacemaker that uses precise targeting capabilities to bypass pain receptors and reduce patient discomfort is being developed. The device, which uses light and optogenetics, could improve the quality of life for millions of people affected by atrial fibrillation.