News

A new view of the supermassive black hole at the center of the Milky Way obtained by the Event Horizon Telescope collaboration revealing its magnetic field structure suggests that the processes by which black holes feed and eject jets into their surroundings may be universal among black holes despite vast differences in size and mass.

The observations will help astronomers refine their theories about the processes involved in planet formation and shed light on what our sun did when it was very young.

The discovery, led by Haijiang Cai, an associate professor in the Department of Neuroscience, was observed in mice, but the findings could lead to human drug treatments.

University of Arizona researchers have modified the gut proteins of mosquito larvae, marking a significant advance in the fight against mosquito-borne diseases.

Researchers at the Comprehensive Center for Pain & Addiction found that sleep disturbances increased vulnerability to migraine attacks, but the opposite isn't true.

How much time do planets have to form from a swirling disk of gas and dust around a star? A new University of Arizona-led study gives scientists a better idea of how our own solar system came to be.

Five colleges increased their National Institutes of Health research funding in 2022-2023, leading to higher rankings for some by the Blue Ridge Institute for Medical Research.

Seeking clues about the life cycle of stars, the GUSTO balloon mission, led by university astronomer Chris Walker, breaks the record as NASA's longest-flying heavy-lift balloon mission.

Taiwan's leading astronomy institute joins Australia, Brazil, Chile, Israel, South Korea and the United States in building one of the world's largest and most powerful telescopes.

Successful University of Arizona patents from last year include many for innovations in health, such as improving cancer diagnoses and providing new types of lenses for patients with cataracts.

UArizona is one of only 16 institutions to be awarded the Innovation & Economic Prosperity Designee 5-Year Extension by the Association of Public & Land Grant Universities.

Joellen Russell, a renowned University of Arizona climatologist, will join a panel of experts at a symposium Thursday to discuss the university's role in establishing mining practices that help create a more sustainable future.

Associate professor Jekan Thanga and a team of student researchers are developing smart, robot-built sandbag shelters for NASA astronauts on the moon.

Scientists, including one from the University of Arizona, pinpointed birds' cerebellums as key to the evolution of flight by comparing images of today's birds' brains with dinosaur fossils.

Learn how unexpected discoveries involving black holes, tree-ring dating, planets and plastics have helped shape scientific research. The weekly series runs Feb. 7-28.

Researchers from University of Arizona Health Sciences are one step closer to solving one of the biggest barriers to regenerative medicine: immunological rejection by the recipient.

The center will advance research and conservation efforts, educate future conservation scientists and leaders and develop a broader understanding of the Earth's biosphere.

NASA scientists last week removed the two stuck fasteners on the sample container that had prevented researchers from accessing much of OSIRIS-REx's asteroid Bennu sample.

At the university's Kuiper-Arizona Laboratory for Astromaterials Analysis, a suite of instruments allows researchers to study the particles collected by the OSIRIS-REx mission the down to the atomic scale.

A new study involving University of Arizona researchers suggests change is happening faster than trees can adapt. The finding offers "a word of caution" for future researchers.

From delivering a historic asteroid sample to setting a university record in Fulbright Scholars, the University of Arizona celebrated several newsmaking events in 2023.

The findings from the University of Arizona-led study have implications for research into whether Mars could have harbored life at some point in its history.

Douglas Loy and Wolfgang Fink, both in the College of Engineering, have made substantial contributions to academia and created inventions that have impacted many fields.

A University of Arizona-led study investigated the possible scenarios that could lead to waning memory in some older people. The findings may help predict memory decline due to dementia.

For the fifth consecutive year, the university is ranked among the nation's top 20 public research universities, according to the National Science Foundation.

Members of the public helped the University of Arizona's Catalina Sky Survey spot a previously unknown near-Earth asteroid on its orbit around the sun.

University of Arizona researchers developed a wearable device that can transmit health data 2,400 times the distance of Wi-Fi without significant network infrastructure.

The discovery of phosphorus in a molecular cloud at the edge of the Milky Way galaxy extends the presence of the element almost twice as far out as where it was known to exist.

Researchers from the university's Drachman Institute, along with colleagues from ASU, NAU and the University of New Mexico, will research housing security, climate and health with a focus on Hispanic and underserved communities in the arid Southwest.

From social media to the workplace, non-stereotypical apologies can help repair trust, according to a new study involving a University of Arizona researcher.

The College of Veterinary Medicine recently performed 20 spay or neuter treatments aboard the mobile surgical unit its inaugural service trip.

A University of Arizona team tracked down a contested piece of space junk that crashed onto the moon. Their findings shed light on why it left not one but two craters.

Footage from the British TV show "Mastermind" gave University of Arizona psychologists a chance to examine human physiology under conditions of stress that would be impossible to reproduce in the lab.

University of Arizona researchers' findings from studying young trees can help shape forest management policy and our understanding of how landscapes will change.

University of Arizona geoscientist Diane Thompson explains the significance of studying Earth's water cycle and how rising and falling temperatures have altered it.

The funding will expand existing programs and support Indigenous experts, scholars and outreach specialists in developing local solutions to climate issues tribal communities are facing.

The University of Arizona is ranked No. 2 in the U.S. and No. 8 in the world in water resources, according to the 2023 Global Ranking of Academic Subjects.

A new study by University of Arizona psychologists finds that solitary time does not closely correlate with feelings of loneliness – unless a person spends 75% of their time alone.

NASA extended the University of Arizona-led OSIRIS-REx mission, which has since been renamed OSIRIS-APEX. The spacecraft will study another potentially hazardous, near-Earth asteroid named Apophis. 

The award recognizes the university's commitment as a Hispanic-Serving Institution to the federal government's flagship international educational exchange program.

The center will bring together students and faculty from across campus to unravel the enigma of life's beginnings and our place in the cosmos.

A research group at the Arizona Cosmology Lab is developing a method to study dark energy for the Nancy Grace Roman Space Telescope mission, which is scheduled to launch by 2027.

The University of Arizona ranks tied for No. 155 globally, No. 48 in the U.S. and No. 25 among U.S. public colleges and universities in Times Higher Education's World University Rankings.

The Richard F. Caris Mirror Laboratory will start fabrication in the final stage to complete the Giant Magellan Telescope. It marks a milestone in the search for other, potentially Earth-like planets and the exploration of the universe.

The findings from new research, led by University of Arizona dendrochronologist Bryan Black, could have implications for seismic preparedness measures in the region.

University of Arizona immunologist Deepta Bhattacharya discusses in this Q&A the newest COVID-19 vaccines and what the future might hold for COVID-19 immunizations.

Led by Adriana Zuniga-Teran, a researcher in the Udall Center for Studies in Public Policy, the mentoring program focuses on a school district with 90% Hispanic enrollment.

The University of Arizona program, which provides mentorship and resources to Native American entrepreneurs in Arizona, will help five more tribal members grow their businesses.

After dropping off its historic sample from asteroid Bennu, the OSIRIS-REx spacecraft is headed to its next target: another potentially hazardous near-Earth asteroid, called Apophis.

The delivery from the asteroid Bennu, seven years after the spacecraft launched, marks the end of the space-voyaging phase of the mission. Scientists will now study the rocks and dust to better understand the origins of life on Earth.

New research from the University of Arizona Health Sciences Comprehensive Pain and Addiction Center found that high levels of family support may prevent substance use among teens who live in border towns on both sides of the U.S.-Mexico border.

The university's undergraduate program in Management Information Systems rose to No. 3 overall and No. 2 among public universities in U.S. News & World Report's 2024 rankings.

Using machine learning, researchers found that the risk of dementia significantly increases among adults who spend over 10 hours a day engaging in sedentary behaviors like sitting.

UArizona Hispanic Serving Institution Initiatives has launched Project LISTO to introduce Hispanic students to STEM majors and opportunities and provide a framework for other Hispanic-Serving Institutions to do the same.

Researchers have found that the bees, which cut bits of leaves for their nests, prefer leaves that harbor the common mold Aspergillus, which may help enhance the insects' health and survival.

Microbes do a lot under the soil surface that can't be seen with the naked eye, but even tiny soil microbes are feeling the stress of hotter and drier conditions. These microbes release more volatile organic compounds into the atmosphere in response to drought stress, a new study conducted at the Biosphere 2 rainforest finds.

A new image of the massive El Gordo galaxy cluster, taken by NASA's James Webb Space Telescope, shows 62 distorted galaxies behind the cluster.

The findings could have implications for treating patients with brain damage and cognitive impairments, including those who have experienced seizures, stroke and Parkinson's disease.

Astronomers have long been puzzled by spiral arms seen around some infant stars. UArizona researchers have discovered a young exoplanet that could explain this phenomenon and provide clues about planetary formation.

During the pandemic, when the world experienced extended periods of unstructured time, creative types were less bored and more engaged with their thoughts than others, a new UArizona study finds.

UArizona has signed a Space Act Agreement with NASA's Johnson Space Center that will allow the university to engage extensively in human spaceflight missions.

Using NASA's James Webb Space Telescope, astronomers have discovered a threadlike arrangement of 10 galaxies that existed just 830 million years after the Big Bang. The structure reveals clues and questions about the fundamental architecture of the universe.

The discovery of tiny salt grains in a sample from an asteroid provides strong evidence that liquid water may be more common in the solar system's largest asteroid population than previously thought.

Thanks to an equipment grant from the National Institutes of Health, UArizona will be among the first institutions in the country to receive a new MRI system that can produce clearer and more comprehensive images of the brain.

The ponderosa pine is one of the most ubiquitous conifer species in western North America. In the American Southwest, winter snowmelt and summer rains play a critical role in ponderosa forests' survival, but the 23-year megadrought may have these semi-arid trees at the end of their rope, according to new research by UArizona scientists.

NASA's James Webb Space Telescope has uncovered an unexpected bounty of full-fledged galaxies at a time when the universe was just getting started. Researchers learned that these galaxies went through bursts of star formation.

UArizona researchers studied the impact of grief on heart function and found that severe grief can cause a marked rise in blood pressure. The findings suggest that grief could be a risk factor for cardiac events.

Stephanie Russo Carroll, associate director of the Native Nations Institute, encourages institutions to adopt policies and practices that recognize Indigenous Peoples' right to control data on their communities, lands and cultures.

UArizona is ranked No. 95 overall, No. 48 among U.S. institutions and No. 25 among public colleges and universities in the annual Center for World University Rankings.

A new Webb Space Telescope image of the bright, nearby star Fomalhaut reveals its planetary system with details never seen before, including nested concentric rings of dust. These belts most likely are carved by the gravitational forces produced by embedded, unseen planets.

UArizona Health Sciences is uniquely poised to help address Arizona's long-term health care needs, President Robert C. Robbins said in a presentation to the Arizona Board of Regents.

Jiang Wu, head of the University of Arizona Center for Buddhist Studies, will use the award to further research the impact of 17th century Buddhist monk Yinyuan Longqi.

Using the James Webb Space Telescope, astronomers observed detailed features, including roiling clouds of dust, in the atmosphere of a brown dwarf planet 40 light-years away.

As a sizable asteroid makes a close pass by Earth, a team of UArizona students is ready to observe the action to practice and test procedures that could be useful in mitigating an impending asteroid impact in the future.

Imagine a home computer operating 1 million times faster than the most expensive hardware on the market. Now, imagine that being the industry standard. UArizona physicists hope to pave the way for that reality.

Mapping a large coastal glacier in Alaska revealed that its bulk sits below sea level and is undercut by channels, making it vulnerable to accelerated melting in an already deteriorating coastal habitat.

The university's Center for Innovation – a business incubator network that empowers science and technology startups to bring their ideas to market – had an economic output of $35.3 million in 2021, according to a new analysis.

Future space missions likely will send robots to scout out underground habitats for astronauts. UArizona engineers have developed a system that would allow autonomous vehicles to explore caves, lava tubes and even oceans on other worlds.

More environmentally friendly agriculture practices are needed to keep the farming industry strong in Arizona, a report from the university's Southwest Center finds.

Climate models and geologic archives are at odds over whether Earth gradually warmed or cooled over the past few thousand years. Researchers tackle this global "temperature conundrum" in a new paper.

A $1.2 million grant from the U.S. Department of Energy supports a UArizona agrivoltaics project that will examine how crop production and livestock grazing can flourish at existing commercial solar farms.

A record 17 UArizona faculty members and researchers received Fulbrights in 2022-2023. That number makes the university the No. 1 producer of Fulbright Scholars nationally, tied with Pennsylvania State University.

Most biologists have assumed that ants wander aimlessly around a new environment. New UArizona research suggests that at least one species of rock ant actually searches in a more methodical way.

University of Arizona space sciences activities generate more than $560 million every year for the local economy, according to an economic impact report delivered by Rounds Consulting Group.

A new study suggests that too much – or too little – office noise has a negative effect on employee well-being. The sweet spot? About 50 decibels, comparable to moderate rain or birdsong.

An open-air, living laboratory that spans parts of Arizona and New Mexico is helping researchers better understand how mineral weathering – the breaking down or dissolving of rocks and minerals over time – feeds into Earth's intricate life-support system.

Researchers have found a correlation between poor sleep and suicide risk. A new study evaluated suicidal thoughts and behaviors in college students during the early days of the COVID-19 pandemic.

Known as the "King of Sting," Justin Schmidt has dedicated his life to the study of insects, mostly the stinging kind. In a recent paper, he explores giant velvet mites – elusive creatures of the arachnid family. Among his discoveries: Virtually no one wants to eat them, suggesting the mites have to contend with few, if any, predators. 

When you're in a bad mood, you might be quicker to spot inconsistencies in things you read, a new University of Arizona-led study finds. The study, published in Frontiers in Communication, builds on existing research on how the brain processes language.

The Arizona Partnership for Climate-Smart Food Crops will promote climate-smart food production practices and help farmers reduce water consumption and carbon emissions.

The mystery of whether microbial alien life might inhabit Enceladus, one of Saturn's 83 moons, could be solved by an orbiting space probe, according to a UArizona-led study.

The university had $770 million in total research activity in fiscal year 2021 and retained its No. 1 ranking in astronomy and astrophysics expenditures at more than $113 million.

Black holes are surrounded by an invisible layer that swallows every bit of evidence about their past. Researchers are now using machine learning and supercomputers to reconstruct the growth histories of black holes.

Less than a year after the James Webb Space Telescope's Christmas Day launch in 2021, scientists have captured images of the most distant galaxies ever seen.

University of Arizona President Robert C. Robbins has formed a commission tasked with identifying solutions to food and economic insecurity in the state and around the world.

Floyd "Ski" Chilton, a professor of nutritional sciences and director of the university's Center for Precision Nutrition and Wellness, has received the highest professional distinction awarded to academic inventors.

People often engage in "mood repair" after a tense interaction with a partner. After a difficult morning at home, employees may try to make themselves feel better by being of service to coworkers later in the day, research suggests.

Researchers have discovered an enormous mantle plume pushing the surface of Mars upward and driving intense volcanic and seismic activity. The discovery reveals that Mars, like Earth and Venus, possesses an active interior, which challenges current views on the planet's evolution.

University of Arizona researchers are teaming up with partners around the world to promote resilience and create solutions to global climate challenges.

According to a new study led by a UArizona researcher, fossils of a tiny sea creature with a delicately preserved nervous system solve a century-old debate over how the brain evolved in arthropods, the most species-rich group in the animal kingdom.

Thanks to the James Webb Space Telescope, scientists have identified a "mystery molecule" that previously stumped astronomers. They've also gained insights needed to interpret potential signs of habitability on other exoplanets.

University of Arizona researchers developed a new method for analyzing rock glaciers, which are made up of a mix of ice, sand and rocks. The method could help scientists better understand these "hidden giants" on Earth and Mars.

Ensuring all people have access to minimum resources and services, while also safeguarding the stability of the Earth's environment, will require significant societal transformations, a new study finds.

Tropical cyclones often cause damage from strong winds, storm surges, intense rain and flooding, but extreme heat is an additional hazard, researchers have found. Extreme heat often follows tropical cyclones and can further complicate disaster recovery.

UArizona ranked 108th in the 2023 Best Global Universities ranking. The university was No. 44 among universities in the U.S. and No. 23 among public universities.

UArizona researchers are furthering their efforts to examine how water, aridity and heat impact communities in the American Southwest, and how those challenges affect human health.

Triple-negative breast cancer accounts for about 10 to 15% of all breast cancers. Researchers have developed a drug they hope can treat it with little to no toxic side effects.

El honor reconoce el alto nivel de compromiso de la Universidad de Arizona (UArizona) con el Programa Fulbright, el programa de intercambio educativo internacional insignia del gobierno de los EE. UU.

Why do some animals have bright colors to impress mates while others use them to ward off predators? It depends on their ancestors, new research reveals. Species that use bright colors as a sexual signal had ancestors that were active during the day, whereas species that use them as warning signals had ancestors that were active at night.

The Fulbright HSI Leader designation recognizes Hispanic-Serving Institutions for promoting Fulbright opportunities on campus and for noteworthy engagement with Fulbright exchange participants.

Early in its history, the red planet likely would have been habitable to methanogens – microbes that make a living in extreme habitats on Earth. But climate change driven by Martian life might have contributed to making the planet's surface uninhabitable early on.

Maps of Earth's temperature and rainfall 56 million years ago could provide insight into the planet's future as carbon dioxide levels in the atmosphere increase.

Shock-darkened meteorites are characterized by dark veins. Planetary scientists have been unable to pinpoint a nearby asteroid source of these meteorites – until now.

Orbital space around Earth has become congested and competitive. The Space4 Center is developing solutions to ensure that the use of orbital space remains sustainable and safe.

Researchers at UArizona and Penn State University are drawing inspiration from bacteria under the sea to develop technology capable of capturing and repurposing methane, an extremely potent greenhouse gas.

Yeast cells and human immune system cells rely on similar chemical reactions to know when to grow. Scientists have identified differences between the cell types that could help with the development of antifungal drugs.

Ever wonder what gives a forest its pine-fresh scent? The answer is the molecular compound pinene, naturally released by plants. A new study explores how and under what conditions plants emit pinene and other volatile organic compounds into the atmosphere. The results may help scientists detect when an ecosystem is in distress.

Chemical and environmental engineering professor Erin Ratcliff will lead a national collaboration to create solar fuels and storage technologies that are more durable and sustainable, but less expensive.

Adults ages 60 and older who sit for long periods watching TV or engaging in other passive, sedentary behaviors may be at increased risk of developing dementia, according to a new study.

As students prepare to return to campus for the start of the fall semester on Aug. 22, President Robert C. Robbins stressed the importance of vaccines, testing, and continued compassion and vigilance.

Nature is full of patterns. Among them are tiling patterns, like what you see on a giraffe's coat. But what makes these natural patterns form? A new UArizona study uses bacteria to help answer that question.

University of Arizona students and faculty members completed a comprehensive study to track and characterize satellites, using a ground-based sensor they developed to measure satellites' brightness, speed and paths through the sky.

Analyses based on locations and viral sequencing of early cases indicate the COVID-19 pandemic started in Wuhan's Huanan Seafood Wholesale Market, with two separate jumps from animals to humans.

After decades of development, a nail-biting launch and months of space travel and commissioning, NASA has released the first images captured by the James Webb Space Telescope. The images hint at the beginning of years of space science, made possible in part by the 21 UArizona researchers who have played a role in developing and managing Webb's onboard instruments.

Before-and-after data from the few seconds it took the OSIRIS-REx spacecraft to collect a sample from asteroid Bennu revealed a surprise: The particles of Bennu's exterior are so loosely packed, they act more like a fluid than a solid.

In many cases of epilepsy – which disrupts electrical activity in the brain and often results in seizures – the underlying cause is unknown. UArizona researchers may have found an explanation for some forms of epilepsy.

As the Colorado River carved the Grand Canyon, it flushed away ancient groundwater. The discovery was made using a new method that determines the age of water based on how much of the radioactive element krypton-81 is present.

A concept developed by UArizona aerospace experts and a NASA planetary scientist takes inspiration from albatross flight to learn more about the Red Planet's atmosphere and geology.

The better someone knows a topic, the more difficult their writing about that subject can be to understand. UArizona researchers have developed the Writing Clarity Calculator to help scholars determine how clear their writing is.

Combining advanced climate model simulations with marine sediment analyses, a new study reveals what may have triggered massive ice sheets to form in Scandinavia, ringing in the last glacial period some 100,000 years ago.

Desert dwellers know it well: the smell of rain and the feeling of joy that comes with it. The familiar fragrance, which is the result of oils and chemicals released by desert plants, may offer stress-reducing health benefits, University of Arizona research suggests.

Evidence suggests that carbon nanotubes, tiny tubes consisting of pure carbon, could be forged in the envelopes of dust and gas surrounding dying stars. The findings propose a simple, yet elegant mechanism for the formation and survival of complex carbon molecules in space.

Weather watchers are invited to submit their monsoon predictions online in the Southwest Monsoon Fantasy Forecasts game. Created by UArizona climate researchers, the game draws inspiration from fantasy sports.

Astronomers have discovered a new type of stellar system that contains only young, blue stars. The structures are thought to be created when galaxies collide with hot gas in something of a galactic belly flop.

The Alliance of Hispanic Serving Research Universities aims to achieve two key goals by 2030: double Hispanic doctoral student enrollment and increase the number of Hispanic faculty members by 20%.

Arizona is ahead of the U.S. in reaching pre-pandemic job numbers, although the state's metropolitan areas have had varying levels of success, says economist George Hammond.

A lunar rock collected during the 1971 Apollo 15 mission is on display until mid-August at the Alfie Norville Gem & Mineral Museum. It is the largest moon rock NASA loans to museums.

A new report indicates that startups and business generated through Tech Launch Arizona supported over 2,500 jobs and $561 million in labor income between fiscal years 2017 and 2021.

Construction has begun on a tall, hangar-like "high bay" facility, where researchers can build and test hardware for experiments and missions designed to fly at extremely high altitudes sometimes referred to as the "edge of space."

After years of anticipation, the international Event Horizon Telescope Collaboration presented the first image of the black hole located at the center of our own Milky Way galaxy, called Sagittarius A*. Scientists had previously suggested the presence of a black hole at this location, but there was no direct visual evidence until now. 

UArizona astrophysicists Feryal Özel and Dimitrios Psaltis identified Sagittarius A* as an ideal target black hole more than 20 years ago. They call it a "Goldilocks black hole," with an environment "just right" for capturing an image.

Snapping an image of a black hole is just the beginning, says researcher Chi-Kwan "CK" Chan. To really understand the image, it must be compared with black hole simulations. UArizona worked with partners to create the world's largest simulation library.

During a visit to campus, NASA Deputy Administrator Pam Melroy discussed some of the space agency's most ambitious and impactful space missions with the UArizona early-career scientists who pursue them.

Led by University of Arizona alumnus Arthur "Barney" Maccabe, the Institute for the Future of Data and Computing will explore the societal questions driving how and why data is used.  By integrating data, networking and computing, he says researchers can target today's most complex and pressing challenges, such as precision health care, cyberspace security and climate resilience.

The Arizona COVID-19 Genomics Union, which was co-founded by renowned UArizona virus expert Michael Worobey, celebrates a major milestone on its mission to stay ahead of the SARS-CoV-2 virus as it evolves.

A new decadal survey from the National Academies of Sciences, Engineering, and Medicine recommends NASA fully support NEO Surveyor, a space-based survey designed to discover and measure asteroids and comets that could pose an impact hazard to Earth. Amy Mainzer, a professor of planetary sciences, leads the effort. 

Tree-ring, ice core and volcano experts teamed up to identify one of the most climatically impactful volcanic eruptions in 4,000 years – Aniakchak II. In the process, they narrowed down potential dates for the infamous Thera eruption.

To understand the unique experience of Black grief, it's necessary to consider the collective grief Black Americans have suffered as the result of America's long history of racialization and racist violence, UArizona experts say.

For the seventh year in a row, UArizona hurricane forecasters predict an above-average hurricane season, beginning June 1. Their forecast shows 14 named storms and seven hurricanes developing over the Atlantic Ocean.

The extended UArizona-led mission, dubbed OSIRIS-APEX, will study the near-Earth asteroid Apophis, which is expected to have a close encounter with Earth in 2029.

The University of Arizona is ranked No. 93 overall, No. 49 among U.S. institutions and No. 27 among public colleges and universities in the annual Center for World University Rankings, released Monday.

Jessica Tierney will be the first climatologist to win the National Science Foundation's Alan T. Waterman Award since Congress established it in 1975. She is also the first from UArizona to ever receive the honor.

A team of University of Arizona researchers is working to scale up production of carbon-absorbing marine algae in an effort to curb the worst impacts of climate change.

The NSF Graduate Research Fellowship Program recognizes and supports outstanding graduate students in STEM disciplines.

A study combining climate change records with fossil evidence of mammals in Africa reveals that times of erratic climate change are not followed by major upheavals in evolution.

Indoor mask use is still recommended on campus, and Commencement is currently expected to proceed as normal, university President Robert C. Robbins said Monday.

UArizona researchers were leaders in a worldwide effort to understand tropical trees and their futures under climate change. They found that heat and drought slow the growth of these trees, which are major carbon dioxide absorbers.

Jessica Tierney is a contributing author for the Intergovernmental Panel on Climate Change Sixth Assessment Report. She studies past climate change to help society better prepare for the future.

As director of the USA National Phenology Network, Theresa Crimmins engages scientists, natural resource managers and volunteers nationwide in tracking when plants and animals undergo seasonal life cycle events.

One of Mona Arora's current projects is to bring together teams to understand how the COVID-19 response can inform both pandemic and climate preparedness.

The Department of State's Diplomacy Lab gives college students the opportunity to present their recommendations on various topics. Two UArizona classes teamed up in the fall to participate in the program for the first time.

Kirsten Engel researches how, why and when state and local climate policies spread to other jurisdictions or to the federal government.

Floods affect more people than any other type of natural disaster and are expected to increase as the climate changes. Beth Tellman uses satellite data to better understand where floods occur and to develop applications for emergency response and recovery.

Joellen Russell uses floating robots, supercomputers and satellites to predict the global climate and carbon cycle, particularly the role of the Southern Ocean around Antarctica.

Most of the rocky bodies in our solar system were formed or shaped by massive collisions early in the solar system's history. A newly observed dust cloud from a similar crash offers clues about how often these events occur around other stars.

UArizona is celebrating Women's History Month by highlighting some of the many women on campus working on climate change-related issues in hopes of creating a better future.

If COVID-19 transmission rates remain in line with the rest of the county, masks will become recommended but not required in indoor spaces on the Tucson campus beginning March 21.

Alpine permafrost, which is found closer to the equator at high elevations, is expected to melt at a faster rate than arctic permafrost under current global warming conditions, according to new research.

The Intergovernmental Panel on Climate Change this week released a new report focused on climate change impacts, adaptation and vulnerability. Two UArizona experts contributed.

The College of Science Lecture Series returns in person this month to explore how minerals can reveal secrets of the past, power our present and be sustainably mined in the future.

Members of the France-Arizona Institute for Global Grand Challenges convened on campus this week to reflect on the institute's first year and plan for its future.

A new initiative seeks to unite global experts from universities, government agencies, nonprofits and industry to develop solutions to future pandemics.

Anyone traveling for spring break should get tested before and after the trip, President Robert C. Robbins says.

For weeks, UArizona students have been gathering data on a high-profile piece of space junk on a collision course with the moon. They've confirmed it's not a SpaceX Falcon 9 rocket booster as previously believed.

With $7.5 million from the Air Force Research Laboratory, UArizona researchers are developing ways to detect, characterize and track objects in cislunar space, or the space between Earth and the moon.

A UArizona Health Sciences-led study identified poor childhood nutrition and growth as risk factors for lung disease and weaker health as an adult.

Engineering photos captured by UArizona's Near-Infrared Camera mark an important milestone for NASA's James Webb Space Telescope. They confirm that the telescope is functioning and mirror alignment can begin. The public can expect to see the first scientific images from Webb in the summer.

UArizona astronomers use DESI, which has observed more galaxies than any previous 3-D survey, to hunt for intermediate-mass black holes in small galaxies. 

Researchers have learned more about the part of the brain that mediates satiation. This could help lead to better treatments for eating disorders and weight management.

After four years of renovations, the Alfie Norville Gem & Mineral Museum has officially opened in its new space in the Pima County Historic Courthouse – complete with a world-class collection that includes Tucson's "own little Hope Diamond" and other rare items.

The university will keep its face coverings policy in place at least through the end of the semester.

Researchers discovered hundreds of large bursts of methane from oil and gas production activities across the globe. The bursts account for 10% of global oil and gas methane emissions and are missing from most greenhouse gas emissions inventories.

Moons around terrestrial planets may play important roles in shaping the conditions for life. For sizable moons to form successfully, the circumstances must be just right, a new study finds.

By combining tree-ring data with U.S. Forest Service data, UArizona researchers have captured a more complete picture of what will drive future tree growth amid climate change. They predict individual tree growth will decline by as much as 91%.

Irina Panyushkina grew up in Siberia, hearing stories of explorers trudging through seas of ice to reach the North Pole. She is now a climate scientist trying to understand how a warming world is transforming the place she called home.

Using observations of the nearby elliptical galaxy Centaurus A, a team of astronomers found an unprecedented number of possible globular clusters – old, dense groups of thousands of stars that all formed at the same time.

In response to the omicron variant of COVID-19, the university has revised its face coverings policy and is continuing to urge testing and vaccination as the spring semester gets underway.

Most scientists researching California's extreme weather have focused their investigations on the last decade. But new UArizona research finds that an increasing trend in extreme weather began half a century ago.

University of Arizona astronomers will help NASA's James Webb Space Telescope peer deeper into the universe than any telescope in history. Webb successfully launched on Christmas Day.

Researchers have identified the first signature of a magnetic field surrounding a planet outside of our solar system. Earth's magnetic field acts as a shield against energetic particles from the sun known as the solar wind. Magnetic fields could play similar roles on other planets.

The NIH RECOVER Initiative aims to identify risks contributing to long COVID, and approaches for treatment and prevention.

To paint a clearer picture of how global climate change affects Earth's ecosystems, conducted an unparalleled experiment: forcing the world's only enclosed rainforest – housed in Biosphere 2 – through a four-month-long controlled drought and recovery.

The new, custom-made devices could mean massive improvements in the monitoring and treatment of diseases, the testing of new drugs, and the ability to track personal health.

When the pandemic sent many students home from class, UArizona researchers developed an at-home lesson plan to teach high schoolers about bioinformatics and SARS-CoV-2.

Astronomers have discovered a structure thought to be a "protocluster" of galaxies on its way to developing into a galaxy supercluster. The discovery was made possible, in part, by the UArizona-managed Large Binocular Telescope.

NASA's new flagship space observatory has arrived in French Guinea, where it will be readied for launch on Dec. 18. UArizona astronomers Marcia and George Rieke played key roles in designing and building the telescope's infrared "eyes," which will peer deeper into the cosmos than ever before. 

The U.S. will experience more extreme cold winter weather as climate change slows down ocean currents, new research finds. The study was motivated by the extreme cold experienced in Texas earlier this year.

Women enter competitions at the same rate as men – when they have the option to share their winnings with their peers, new research finds. The study casts doubt on the theory that America's gender wage gap is due to women being less competitive than men.

Prairie dog kisses helped researcher Jennifer Verdolin map the intricacies of prairie dog social dynamics – from how many friends a particular prairie dog has to how many connections the critter facilitates.

Using data from an airborne laser mapping technique called lidar, researchers identified 478 complexes in the Mexican states of Tabasco and Veracruz. The discovery changes researchers' understanding of the relationship between the Olmec civilization and the subsequent Maya civilization.

All employees, including student workers, graduate assistants and graduate associates, must be vaccinated unless they have been granted a religious or disability exemption.

A new study sheds light on the evolutionary history of the deep biosphere – a hidden realm of microbes inhabiting the upper few kilometers of Earth's crust.

Surprisingly little is known about how rain moves through landscapes once it's on the ground. A $3.5 million grant will allow scientists to study the role of plants and microbes in the process.

By combining Hubble Space Telescope observations with theoretical models, a team of astronomers has gained insights into the chemical and physical makeup of a variety of exoplanets known as hot Jupiters.

Doctoral student Kira Hart Shanks designed and built the infrared channeled spectropolarimeter, which will be deployed onboard a NASA CubeSat to monitor invisible clouds in the upper atmosphere.

A UArizona-led effort to reconstruct Earth's climate since the last ice age highlights the main drivers of climate change and how far human activity has pushed the climate system.

In a paper published in Science, UArizona virus expert Michael Worobey connects the dots from the beginning of the COVID-19 outbreak and shows that an origin other than the Huanan Seafood Market is extremely unlikely. 

A new study by UArizona law professor Derek Bambauer suggests that most people are content to let big data-produced algorithms decide many – but not all – of their day-to-day decisions.

With COVID-19 cases rising nationally and statewide, President Robert C. Robbins is urging students and employees to get vaccinated and continue good public health practices.

Evan MacLean, director of the Arizona Canine Cognition Center, is lucky enough to have a career working with dogs. Recently, he had the opportunity to work with a popular actor as well.

Engineers and physicians teamed up to develop an ultra-thin wireless device that grows to the surface of bone and could someday help medical professionals monitor bone health and healing over long periods.

With omicron named a COVID-19 variant of concern by the World Health Organization, President Robert C. Robbins urged students and employees to get vaccinated, test regularly and follow good public health practices.

The near-Earth asteroid Kamo`oalewa might actually be a fragment of our moon, according to a team of astronomers led by the University of Arizona. Kamo`oalewa is a quasi-satellite – a type of near-Earth asteroid that orbits the sun but remains relatively close to Earth.

UArizona history faculty members developed educational content for the popular strategy game. Engaging with the content can earn current and future UArizona students one hour of academic credit.

For their technological contributions to engineering and health care, Liesl Folks, Mark Van Dyke and Terry Matsunaga have been recognized with the highest professional distinction for academic inventors.

Researchers targeted a common sodium ion channel to reverse pain and saw positive results that could lead to a nonaddictive solution to treat pain.

Researchers from the UArizona College of Medicine – Tucson found that the bacterial lysate OM-85 blocked SARS-CoV-2 infection by decreasing the ability of the coronavirus to bind to the lung cell surface receptor ACE2.

A team led by UArizona astronomers will use NASA's James Webb Space Telescope to examine three of the most distant active supermassive black holes known, as well as their host galaxies.

While physical activity benefits brain health in low-pollution areas, physical activity in areas with the most pollution does not confer the same benefits, a new study finds.

Ecologists estimate that 15 to 37% of species will go extinct as a direct result of climate change. But when you consider the indirect effects of climate change, extinction rates may be higher, new research suggests.

As the holidays near, members of the Alliance for Vaccine Literacy offer tips for navigating emotionally fraught conversations with vaccine-hesitant friends and family.

A University of Arizona Health Sciences-led research team received $7.16 million in federal funding to study how to better control severe asthma and determine why sufferers are less likely to contract COVID-19, influenza and rhinovirus.

Borrowers whose writing is more readable, positive and truthful are less likely to default on a loan and tend to be charged lower interest rates, researchers have found.

New research suggests winged critters with a penchant for overripe fruit may hold a secret to understanding gene function and autoimmune disorders such as lupus.

Using machine learning and simulations of giant impacts, researchers found that planets residing in the inner solar system were likely born from repeated hit-and-run collisions.

The new building is designed to draw on the university’s core strengths and research collaborations in space exploration, optics, quantum information science and more.

UArizona astronomers used massive galaxy clusters as natural magnifying glasses to discover strange galaxies that stopped making stars before their time. 

The program in the James E. Rogers College of Law aims to diversify the legal field by offering a guide for Latina Bachelor of Arts in Law students interested in attending law school.

Footprints at White Sands National Park in New Mexico confirm human presence over at least two millennia, with the oldest tracks dating back 23,000 years.

The network, established with funding from the National Institutes of Health, has the ultimate goal of developing more effective brain-aging treatments and interventions targeted to the individual.

Shell beads found in Morocco are at least 142,000 years old. Archaeologists say they're the earliest known evidence of a widespread form of human communication.

El programa Lawtina, lo cual es parte del Colegio de Leyes James E. Rogers, pretende diversificar el campo legal a través de ofrecer una guía para las latinas que están trabajando hacia su bachillerato de leyes y también quieran ir a una facultad de derecho.

Researchers analyzed people's idle thoughts for 10 minutes. What they learned may be useful in the diagnosis and treatment of mental health issues such as depression.

The $2.4 million in funding will further the Indigenous Teacher Education Program's mission to bring more Native American teachers to schools that serve Native American students.

The university's new Cats TakeAway Testing Program has accounted for more than 10% of test results for the past several days, indicating that it has increased accessibility to tests.

Cancer Center researchers found lower immune response to the COVID-19 vaccine in patients on active chemotherapy. A third dose of the Pfizer vaccine boosted immune response.

A UArizona doctoral student in the Department of History was inspired by his own family's past to examine the relationship between racial identity and sports in the United States.

New research into metal-rich asteroids reveals information about the origins and compositions of these rare bodies that could one day be mined.

Un estudiante de un doctorado en historia fue inspirado por el pasado de su familia, lo cual lo llevó a estudiar la relación que existe entre la identidad racial y los deportes en los Estados Unidos.

Boosters are recommended for those who received a second vaccine dose at least six months ago and are 65 or older, or between 50 and 64 with underlying medical conditions.

Using data from NASA's OSIRIS-REx mission, a UArizona-led team of scientists concluded that asteroids with highly porous rocks, such as Bennu, should lack fine-grain material on their surfaces.

For two more years, NASA's Near-Earth Object Wide-field Infrared Survey Explorer, or NEOWISE, will continue its hunt for asteroids and comets – including objects that could pose a hazard to Earth.

An ancient coronavirus outbreak in East Asia could help researchers identify viruses that have caused epidemics in the past and may do so in the future.

The university achieved a record 124 license agreements, launched 17 new companies, and grew the number of inventions disclosed and patents filed.

An unknown methane-producing process is likely at work in the hidden ocean beneath the icy shell of Saturn's moon Enceladus, suggests a new study co-authored by UArizona scientist Régis Ferrière.

COVID-19-related anxiety can undermine or re-energize job seekers, depending on how they process it, according to new research.

Runoff from melting snow is an essential water resource for many communities and ecosystems, but when snow melts too rapidly in a short time, it can be destructive. To better understand the processes that drive such melting, researchers mapped extreme snowmelt events over 30 years.

People who contract COVID-19 even after vaccination are likely to have a lower viral load, experience a shorter infection time and have milder symptoms, new research finds.

A study that started by analyzing COVID-19 immunity and vaccine effectiveness in frontline workers is broadening to include children, thanks to a $15 million grant renewal from the Centers for Disease Control and Prevention.

HydroGEN, a UArizona-led project funded by the National Science Foundation's Convergence Accelerator program, will allow researchers to build a national platform for hydrologic forecasting.

Funded by the NSF Convergence Accelerator Program, the Quantum Sensors project aims to make space and terrestrial navigation far more sensitive, accurate and affordable.

A new agreement between the Pascua Yaqui Tribe and UArizona affirms the university's commitment to helping the tribe's members reach their higher education-related goals.

The proportion of the population exposed to floods has grown by 24% globally since the turn of the century, new research finds. That's 10 times more than scientists previously thought.

Data shows that 67% of people with mild or moderate COVID-19 infection develop long COVID, with symptoms that last more than 30 days after a positive test.

The pandemic has forced employers to think about how office spaces can reduce employee stress and enhance well-being, say two UArizona researchers who study how physical spaces affect health.

Grief is stressful not only for the mind, but for the body. New UArizona research suggests that a simple muscle relaxation technique is an effective coping strategy for grief after the loss of a loved one.

Researchers have identified what may be the key molecular mechanism responsible for COVID-19 mortality – an enzyme related to neurotoxins found in rattlesnake venom.

From a young age, Nadira Mitchell's mom encouraged her to explore outdoors and taught her about her Navajo culture. Mitchell now hopes to turn her lifelong love of nature into a career as a tribal liaison for wildlife conservation.

UArizona College of Medicine – Phoenix researchers designed novel molecular diagnostics technology to monitor the health of four crew members during the all-civilian spaceflight.

Rare fossils preserving the brains of creatures living more than half a billion years ago shed new light on the evolution of arthropods such as insects and crustaceans.

With classes starting on Aug. 23, President Robert C. Robbins says vaccines are still our "best hope" against COVID-19.

Mask compliance was high in the first days of the fall semester, and testing and vaccinations remain available on campus. The university also has mental health resources for those impacted by the recent events in Afghanistan.

UArizona student-athlete Josh Wheeler hopes to help return U.S. wheelchair rugby to the top of the Paralympic podium for the first time since 2008. Wildcats will also compete in wheelchair basketball, wheelchair tennis, paracanoe, and track and field.

Nearly half of all students enrolled on main campus have voluntarily uploaded proof of COVID-19 vaccination. The actual number of vaccinated students is likely much higher.

Masks will be required in indoor spaces where adequate and continuous distancing is not possible. The mask guidelines are among a number of measures in place to help minimize the impact of COVID-19 on campus.

Since 2001, between 40,000 and 73,400 square miles of Amazon rainforest have been impacted by fires, affecting 95% of all Amazonian species and as many as 85% of species that are listed as threatened in the region.

The more than 8,700 first-year students who started classes on Monday set a university record for first-year student enrollment, according to preliminary data. The newest class is also very diverse and  academically prepared.

Zoom fatigue – or feeling drained after a day of virtual meetings – may be worse for those who keep their cameras on during meetings, new research finds. Women and newer employees may be especially affected.

The University of Arizona's ASEMS program was recognized for its commitment to the recruitment and retention of women and underrepresented students in STEM fields.

A first-of-its-kind nanotherapeutic delivery system demonstrated remarkable efficacy against both early-stage and difficult-to-treat late-stage metastatic tumors.

NASA and UArizona scientists were able to significantly reduce uncertainties about asteroid Bennu's orbit and determine the likelihood of the asteroid impacting Earth between now and the year 2300.

Inspirada por las historias que se pasan de una generación a otra, Roxanna Denise Stevens Ibarra mezcla lo moderno con lo tradicional en su arte y su educación.  

The Cats TakeAway Testing program will allow students, employees and designated campus colleagues to pick up a COVID-19 saline gargle test kit on the go.

Investigadores teorizan que las relaciones sociales y los enlaces familiares dentro de la cultura Hispana tal vez puedan explicar el porqué los Hispanos se recuperan mejor después de padecer de una enfermedad en comparación a la población blanca y no-Hispana.

The Indigenous Resilience Center will work directly with Native American nations to address environmental challenges in ways that respect Native and Indigenous sovereignty and knowledge.

Analyzing observations of an X-ray flare and fitting the data with theoretical models, astronomers documented a fatal encounter between an unlucky star and a black hole.

New research suggests that the volume of salty water 2 to 10 kilometers (6.2 miles) beneath the Earth's surface is double previous estimates. The water could store waste fluids, sequester carbon and direct our search for extraterrestrial life.

Generations of family stories inspire Roxanna Denise Stevens Ibarra's approach to art and music. The UArizona senior's short film is finding success on the festival circuit.

By drilling deep into the Greenland ice sheet, researchers reconstructed the jet stream's past and found that climate-caused disruptions are likely to have drastic weather-related consequences.

Researchers theorize that the importance of strong family and social bonds in Hispanic culture may explain why Hispanics have better disease outcomes than non-Hispanic whites.

A new UArizona-led study uses big data to assess why the diversity of species varies across the globe. What researchers learned changes our understanding of future diversity in a warming world.