The University of Arizona has welcomed its largest and most diverse class in university history, which also includes a record number of students from Arizona. About 9,300 first-year students, representing all 50 U.S. states and 45 countries, started classes this week.

The University of Arizona earned recognition for its quality of life, intramural sports programs, health services, student government participation and more.

The CyberApolis platform, designed in the College of Applied Science and Technology, is a secure training ground where students can hone their cybersecurity skills.

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.

Nearly half of career firefighters report short sleep and poor sleep quality. With a $4 million grant, UArizona researchers are working to identify key factors for implementing workplace sleep coaching for firefighters.

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.

Is it true that lightning never strikes twice? What is dry lightning? And when should you head indoors during a storm? Climate science specialist Mike Crimmins shares some shocking truths about lightning and thunderstorms.

Arizonans who get pneumonia should ask to be tested for Valley fever, says Dr. John Galgiani, director of the Valley Fever Center for Excellence. Half of all U.S. Valley fever infections occur in the Phoenix metropolitan area.