Features

Chasing Einstein's Shadow

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.

Bird Feathers Offer Insight into How Evolution Works

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.

Powerful Particles and Tugging Tides May Affect Extraterrestrial Life

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.

Ancient Pee Reveals Earliest Stages of Animal Domestication

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.

Possibility of Recent Underground Volcanism on Mars

A new study conducted by UA planetary scientists suggests volcanoes may have been recently boiled water beneath the surface of Mars, which could explain the potential presence of liquid water underneath the polar ice caps.

Wildfire Risk in California No Longer Coupled to Winter Precipitation

Recent large fires may be harbingers of things to come, report Valerie Trouet, a UA tree-ring researcher, and her colleagues.

Seeing the Forest Through the Lidar Lens

A team of ecologists used lidar technology to scan the leaf canopy of an Amazon forest and found that trees responded to drought in some surprising ways.

Two Young UA Astronomers Join $242M NASA Mission

NASA announced $242 million in funding for the SPHEREx project, a new space telescope will help astronomers understand how the universe evolved and probe our galaxy for the ingredients of life.

Prehistoric Vegetation Helps Predict Future Ecosystems

An international research team led by UA researchers found that planet warming drove major changes in vegetation and future warming may drive similarly dramatic changes around the world.

Fierce Winds Quench Wildfire-like Star Birth in Far-flung Galaxy

Astronomers have detected the most-distant galactic "wind" of molecules ever observed, seen when the universe was only one billion years old.

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