By connecting radio telescopes across five continents into one Earth-sized virtual telescope, including two UA telescopes, astronomers managed to resolve the shadow of a supermassive black hole, a prediction of Einstein's General Theory of Relativity.
A UA geosciences undergraduate developed an innovative method of using ancient urine salts to reveal when humans in ancient Turkey began shifting from hunting to herding.
A UA team shows that evolution is driven by dependency on other species within ecological communities – testing a long-held idea of the late UA professor George Gaylord Simpson.
Two new studies by UA space scientists may bring into question the habitability of TRAPPIST-1 exoplanets, three of which are in the habitable zone of space.
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UA Science: A Place of Discovery and Innovation

Joaquin Ruiz, DeanThe University of Arizona College of Science brings together globally prominent faculty in disciplines at the core of scientific inquiry and education. One of the largest colleges at the University of Arizona, we are a nexus of award-winning programs that encourage both independent and collaborative-driven research. Our academic departments, schools and research units encompass the range of physical, mathematical, environmental, cognitive and life sciences. UA Science is among the most powerful and prolific academic research centers in the world, recognized and rewarded for the unparalleled caliber of our achievements. With over 7,500 undergraduate and graduate students, we are an integrative learning institution, where accomplished faculty and next-generation scientists engage side-by-side in groundbreaking research. Our scientists and students also share their knowledge with the local and broader community through extensive outreach and public service initiatives. Our mission is to encourage the aggressive pursuit of research excellence, to support novel teaching and outreach programs and to create economic opportunities for our community.

Joaquin Ruiz, Dean

The Paleozoic Diet: Why Animals Eat What They Eat
An in-depth look into the deep history of how animals evolved their dietary preferences over the last 800 million years led UA researchers to some unexpected discoveries.
Fracking Has Less Impact on Groundwater Than Traditional Oil and Gas Production
New research reports that conventional oil and gas production activities inject more water underground than hydraulic fracturing and other unconventional petroleum-production methods.
Best of Both Worlds: Asteroids and Massive Mergers
University of Arizona researchers are using the Catalina Sky Survey’s near-Earth object telescopes to locate the optical counterparts to gravitational waves triggered by massive mergers.
Today’s Students are Tomorrow’s Space Explorers
Ten students from Japan and Arizona gathered for the first official Space Camp Biosphere 2, where they designed Biosphere 3 to sustain human life on Mars.
NASA Mission Selects Final Four Site Candidates for Asteroid Sample Return
The OSIRIS-REx spacecraft has mapped Bennu to identify the best spots for the spacecraft to collect a sample. The final two sites – a primary and backup – will be selected in December.

Workplace Climate Committee

The mission of the committee is to help foster a positive and inclusive work environment in the College of Science where all individuals – faculty, staff, and students – feel welcomed and respected, and that their opinions are valued.

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Undergraduate Research

The research opportunities available to UA Science undergraduates make this college a smart choice for students who want to grow academically, socially, and intellectually.

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Tucson: Science Lives Here

UA Science invites you to experience telescopes atop of Tucson's highest peak, a century-old ecological laboratory and the world-class attraction, Biosphere 2.

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