UA Science
The highest resolution image of Centaurus A obtained with the Event Horizon Telescope on top of a color composite image of the entire galaxy. R. Bors; ESO/WFI; MPIfR/ESO/APEX/A. Weiß et al.; NASA/CXC/CfA/R. Kraft et al.; EHT/M. Janßen et al.

Recent News/Press Releases from Dept. Astronomy/Steward Observatory

Several recent research press releases or popular articles from Dept of Astronomy and Steward Observatory (hit "more" for the full set of press releases):

1) Sixiang Wen and Ann Zabludoff study a tidal disruption event  and find an Intermediate-Mass Black Hole. This study also appeared in Sky and Telescope:

2) (Whitaker et al) including current and former Steward/NOIRLab people Christina Williams, Justin Spilker, Desika Narayanan, Alexandra Pope, and Rachel Bezanson:

Galaxies that shut down star formation in the relatively early Universe

3) Marcia Rieke and JWST:

"James Webb Space Telescope:...

Guidelines for Steward and Department of Astronomy Return to Campus

COVID testing: see THIS link

Addition of August 13 2021 (from THIS site): Face coverings are required in all indoor spaces where it is not possible to adequately and continuously maintain social distance.


Addition of July 23, 2021: The updated UArizona protocols can be found HERE.

Addition on July 7, 2021...

For the public
For Public

Public events include our Monday Night Lecture Series, world-reknowned Astronomy Camp and Mt Lemmon Sky Center.

For Students

A good place to start if you want to become an undergrad major or grad student, or need to find our schedule of classes.


For Scientists
For Scientists

Find telescopes and instruments, telescope time applications, staff and mountain contacts, and faculty and staff scientific interests.