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Contrary to conventional wisdom holding that early galaxies were composed of mostly hydrogen and helium, new observations suggest that galaxies were seeding the cosmos with heavy elements just 500 million years after the Big Bang.

During the NASA Inspiration Tour at the U of A, students shared the space missions and technologies they are building and engaged directly with NASA leaders about the opportunities ahead.

Four decades after Tucson stopped serving contaminated water on its south side, one in three residents who drank it are still reporting symptoms of post-traumatic stress, a new U of A study has found.

The U of A is home to the top-ranked public university program in Management Information Systems, according to the 2027 Best Colleges ranking from U.S. News & World Report.

Out of the 14-institution cohort to receive this classification, the U of A is the largest R1 research university.

New research has found that Y chromosome loss occurs in healthy-seeming tissue before tumors begin to form, making the loss of a hormone an early indicator of cancer danger.

Former Sen. Jon Kyl is a University of Arizona alumnus who represented Arizona in Congress for more than 25 years as a leading voice on legal and national security issues.

The U of A ranks No. 1 in the Southwest and No. 1 in the Big 12 Conference in a new ranking that measures how central each university is in the global research-collaboration network.

Scientists were stunned when they discovered a fossilized tooth from a capybara that lived in the Atacama Desert in northern Chile almost 9 million years ago.

The U of A ranked No. 27 overall out of 262 U.S. colleges and universities and No. 1 in Arizona in the 2027 College Free Speech Rankings.