News

The inner debris disk at the heart of the Epsilon Eridani planetary system has long puzzled astronomers. A team of Steward Observatory researchers is redefining how we study it.

Steward Observatory’s Sai Krishanth is lead author on a new paper using Hubble data to define the deepest limits on scattered light emission from the Epsilon Eridani inner debris disk. (Image: artist's impression, showing asteroid belts and a planet orbiting Epsilon Eridani, NASA/JPL-Caltech)

Webb discovers the earliest known galaxy — for now

JWST's infrared image from its NIRCam captured JADES-GS-z14-0, the most distant known galaxy. Credit: NASA

PHOTOS: World’s largest telescope mirrors bloom in a giant flower pattern

The Giant Magellan Telescope is now 40% under construction across 36 states and on track to be operational in Chile by the early 2030s.

Testing begins at U of A for Giant Magellan Telescope's high-tech mirror support structure

Buddy Martin (center) inspects components inside the support cell with Giant Magellan Telescope engineers Tomas Krasuski (left) and Colby Gottschalk (right).

Distinguished Professor of Astronomy Chris Impey in The Conversation

Distinguished Professor of Astronomy Chris Impey

KOLD Video: University of Arizona professors aim to revolutionize solar power

Roger Angel, the current and founding director of Steward Observatory’s famed Richard F. Caris Mirror Lab, has turned his attention to the promise of solar power.

Eyes on the universe: How U of A researchers confirmed farthest galaxy with James Webb Space Telescope

A team of University of Arizona scientists identified the most distant known galaxy, JADES GS-z14-0, using the Near-Infrared Camera and Mid-Infrared Instrument aboard NASA's James Webb Space Telescope. The discovery reshapes our understanding of galaxy evolution and presents new possibilities for the future of astronomy.

New U of A President spends his first day on campus exploring the Richard F. Caris Mirror Lab

On his first full day on campus, new University of Arizona President Garimella explored the Richard F. Caris Mirror Lab with Buell Jannuzi, head of the Department of Astronomy and director of Steward Observatory.

Webb telescope snaps view of an exploded star. It's an invaluable find.

Brenda Frye

Astronomers catch a glimpse of a uniquely inflated and asymmetric exoplanet

Artist's illustration of the exoplanet WASP-107b based on transit observations from NASA's James Webb Space Telescope as well as other space- and ground-based telescopes, led by Matthew Murphy of the University of Arizona and a team of researchers around the world.