A University of Arizona study finds that PFAS contamination imposes annual social costs of at least $8 billion.

Recently reported methane signatures detected by the James Webb Space Telescope could be a hint to it potentially harboring life, but University of Arizona researcher Sukrit Ranjan urges caution.

Pandora will study select planets for vastly longer than any other telescope has, staring at a star system for up to 24 hours at a time and repeating each such session nine more times for every star it studies. Those detailed observations could go a long way toward determining if the conditions for life exist on distant worlds. But the job won’t be easy.

Building on the University of Arizona's leadership in interferometry, a Steward Observatory-led team of astronomers probe mysterious "hot dust" around stars that has vexed astronomers for decades.

The study shows that TORC1, a key controller of cell growth, doesn’t just turn on or off. Instead, different proteins adjust its activity based on how much nitrogen the cell has. When nutrients are low but not gone, the cell slows its growth and shifts its metabolism to adapt. But when nitrogen runs out completely, an additional regulator steps in to fully shut down TORC1, putting the cell into a resting state. This reveals that cells use a layered system to fine-tune growth, not a single switch — a strategy that may be shared across many organisms.

The Nyholm Prize, awarded internationally once every two years, specifically honors individuals making substantial and sustained impact in chemistry education through innovation, curriculum development and inclusive teaching practices.

The spacecraft of the U of A-led OSIRIS-APEX mission performed a "slingshot" maneuver around Earth as part of its journey to catch up with its mission target, asteroid Apophis.

Through the University of Arizona's collaboration with the French National Centre for Scientific Research, researchers around the world are advancing science that endures and improves lives.

Analyzing plant dispersion data from across the globe, researchers at the University of Arizona found that the most abundant species have adapted to tolerate a wide range of climates. Their findings could inform future conservation efforts.

The comet known as 3I/ATLAS is just the third known object to pass through our solar system from elsewhere in the Milky Way galaxy. It was discovered on July 1, and astronomers have been trying to learn more about it ever since, using every telescope and space probe at their disposal.