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Research by anthropologist Stacey Tecot shows that lemur fathers experience elevated levels of androgens (male sex hormones) when they care for their infants — which wasn't expected.

A team of scientists led by the UA has imaged a cluster of about 110 protoplanetary disks in the Orion Nebula, and the findings may provide insights into the birth of our solar system.

Our stormy season officially starts on Friday, and the forecast is for above-average rainfall and warmer-than-average temperatures. The storms provide up to half of Tucson's annual rainfall.

An international scientific team that includes UA geoscientist Christopher Harig reports that a sharp uptick in the loss of Antarctic ice since 2012 is contributing to rising seas.

Visually impaired teens attended the Sky School on Mount Lemmon as part of the UA's Project POEM, a National Science Foundation initiative aimed at motivating students with visual impairments toward STEM careers. It's a special cause for principal investigator Sunggye Hong. With UANews video.

Inventors at the UA College of Medicine – Tucson and Banner – University Medical Center Tucson are working with Tech Launch Arizona on a next-generation instrument.

The asteroid that blew up in the sky on June 2 was discovered by the UA-led Catalina Sky Survey using a telescope that helped discover about half of all known near-Earth objects.

Pinning down the mass of a galaxy may seem like an esoteric undertaking, but UA scientists think it holds the key to unraveling the nature of dark matter and the fabric of our cosmos.

UA junior Taite Nazifi is gathering ideas for a web application to support river conservation efforts. But his time in the remote village of Longo Mai is about so much more. "I can't even begin to explain what kind of amazing impact this has made in my life," he says.

CNN en Español's Carmen Aristegui is the 2018 winner of the Zenger Award for Press Freedom for her dedication in exposing government corruption in Mexico.