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

Exploring a Desert Portal to Other Worlds
The merge between astronomy and geology, necessary to get humans to the moon, led to field trips that continue to this day, enabling fledgling scientists to interpret data from far-off worlds without leaving Earth.
From Points of Light to Worlds: UA Explores the Solar System
A determined bunch of scientists set out to map the moon in preparation of the Apollo landings, but that was only the beginning. A new field of science blossomed, and UA scientists have been involved in nearly every U.S. space mission since.
Chemist Creates Program to Support Vets in STEM
Assistant professor Michael Marty is developing a program to support veteran students who are pursuing STEM degrees and bring their skills to research labs at the University of Arizona.
Four Questions: Celebrating OSIRIS-REx on Asteroid Day
When she’s not in class or training to qualify for next year’s Boston Marathon, you can find undergraduate Stephanie Stewart hard at work with her teammates on OSIRIS-REx, NASA’s first asteroid sample return mission.
How the University of Arizona Guided Men to the Moon
A University of Arizona team imaged and mapped the surface of the moon, which allowed them and NASA to understand the moon’s geology and choose landing sites for future robotic and Apollo missions.

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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