University of Arizona News

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• Andean Volcanic Eruptions Identified As Catalyst For Late Miocene Global Cooling And Mass Whale Mortality In Chile

  Published: Apr 18, 2026

  Section: Research

  Researchers at the University of Arizona have linked a surge in Andes volcanic activity between 4 and 8 million years ago to a dramatic shift in marine ecosystems and global climat...

• Star-Shaped Support Cells Identified as Primary Regulators of Fear Memory and Post-Traumatic Stress

  Published: Apr 4, 2026

  Section: Mental Health

  Researchers have discovered that astrocytes, long dismissed as passive brain "caretakers," actively govern the formation and recall of fear responses within the amygdala. By manipu...

• Quasar "Predators" Halt Star Formation in Neighboring Galaxies Millions of Light-Years Away

  Published: Mar 30, 2026

  Section: Innovations in Space

  A groundbreaking study from the University of Arizona, utilizing the James Webb Space Telescope (JWST), reveals that supermassive black holes do not evolve in isolation. Researcher...

• Collision with Large Magellanic Cloud Shatters Orbital Structure of Neighboring Galaxy and Challenges Cosmic Evolution Models

  Published: Mar 20, 2026

  Section: Research

  New astrophysical research reveals that the Small Magellanic Cloud (SMC) is reeling from a direct, high-velocity collision with its larger neighbor occurring millions of years ago....

• University of Arizona Study Links Preconception Pesticide Exposure to Critical Declines in Newborn Health Metrics

  Published: Mar 14, 2026

  Section: Health

  Research led by the Mel and Enid Zuckerman College of Public Health has identified a new sensitive window of exposure to agricultural chemicals prior to pregnancy. The study associ...