To date, most planetary scientists have relied on crude definitions of habitability, primarily defined as where liquid water can exist on a planetary surface. But a recent three-year NASA-funded study aims to provide a much more precise definition.

Three new papers reveal yet more secrets from samples collected by the University of Arizona-led OSIRIS-REx mission from asteroid Bennu.

A $2 million gift from the estate of John A. Brown will fund scholarship endowments in the College of Science and College of Veterinary Medicine at the University of Arizona.

The University of Arizona microcampus in Beijing, in collaboration with the Department of Mathematics, recently celebrated its first cohort of graduating students.

Dr. Zhang received a prestigious NSF CAREER Award to support his groundbreaking work on interactive machine learning — a class of artificial intelligence systems that learn by engaging directly with the world around them.

U of A-led research shows evidence of social microbial transmission in a solitary species, which could help us better understand how microbes are exchanged in humans.

New observations that U of A astronomers helped make with the James Webb Space Telescope solidify previous hints of a giant planet orbiting the sun's closest neighbor.

All animals–including humans–are home to trillions of microbes that are crucial to health. Many of these microbes spread socially, relying on close contact or cohabitation. But what happens when those social routes don’t exist?

Research shows small, frequent fires by mobile hunter-gatherer groups controlled landscape-scale fire activity.