Join us at Zerai's International Bar TONIGHT at 7:30 pm for Tucson's version of Astronomy on Tap - Space Drafts! Zerai's is located at 2725 E Broadway Blvd, Tucson, AZ 85716 or join us virtually at bit.ly/SpaceDrafts120 See you tonight!
Ready for a night that’s out of this world? Join us on Mt. Lemmon for a Spooktacular SkyNights adventure where the universe provides the thrills! Reserve your spot before they disappear into the night! tix.com/ticket-sales/skycent…
Yesterday we held our Internal Symposium, which occurs every semester! Researchers across all career levels had the opportunity to give five-minute talks about their recent work. We can't wait to see you all next time!
Steward Observatory and NOIRLab were pleased to welcome Professor Richard Pogge as their colloquium speaker, taking about his work with the Large Binocular Telescope. Check out the full colloquium coming soon to our YouTube Channel! youtube.com/@StewardObservat…
The PUFFINS mission is a go! NASA has awarded $20M to a Steward Observatory team led by Ramya Anche to build a compact space telescope that will study how interstellar dust alters starlight in ultraviolet--giving new clues to how stars and planets form. bit.ly/4yROn2s
This striking image features NGC 7331, a spiral galaxy approximately 45 million light-years away in the constellation Pegasus, along with several distant companion galaxies. To use these same telescopes, check out a SkyNights event: bit.ly/4snmUU1!
Weather forecast: cloudy! Using the James Webb Space Telescope, Steward Observatory astronomer Brittany Miles watched WISE 0855, the coldest known brown dwarf, and tracked water clouds moving and changing over time: bit.ly/47VN9Hm
New Paper Alert! Steward Observatory PhD Candidate, Evan Mayer, recently published a paper discussing his work with aligning optical systems for the Arizona Radio Observatory 12m radio telescope. Check out the full paper: arxiv.org/pdf/2511.09446
Check out this new paper led by Hanga Andras-Letanovszky, who graduated from the University of Arizona with her B.S. in May 2026! Check out her interview about this paper on the August 2026 episode of the podcast, Astrochem Coffee, or read the full paper: bit.ly/3ViItsh
Check out our new YouTube Channel! With more content coming soon, this is your one-stop shop for weekly Steward Observatory colloquia, public talks, interviews, and more! Comment what else you would like to see! youtube.com/channel/UCLXlB00…
New paper from Wyant College of Optical Sciences grad student & Steward Observatory researcher Solvay Blomquist! Using the TOTO testbed, she shows simulated alignment algorithms can guide a real misaligned telescope to near diffraction-limited performance: arxiv.org/pdf/2604.06504
Check out this new paper written by Postdoctoral Fellow, Dr. Minghao Yue! Through his observations with ALMA, Dr. Yue identifies the highest redshift pair of quasars. Find out more through either the press release on our website or the full paper: arxiv.org/abs/2604.06504
Help us find the faintest galaxies in the Universe with the Vera Rubin Observatory at zooniverse.org/rubin! Thank you to Steward Observatory postdoc, Debasish Hazarika, and University of Arizona undergraduates, Abigail Tennyson and Alon Byrne for their hard work on Zooniverse!
Welcome (and welcome back) to Steward Observatory, all new and returning students, faculty, and staff! Here's to a stellar academic year full of discovery, collaboration, and great science ahead!
Dr. CK Chan, a professor at Steward Observatory, was featured in an OpenAI success story about his use of Codex to improve black hole simulations. His simulations test new ideas about the physics in black holes.
Check out the article to learn more! bit.ly/3S3S6JK
Check out this recent paper written by Hayden Foote! Hayden used simulations to understand how dark matter impacts the interaction between the Small and Large Magellanic Clouds - two dwarf galaxies interacting with the Milky Way. Check out the full paper: ui.adsabs.harvard.edu/abs/20…
CatSat is a student-led satellite mission, which was launched in 2024. Under the guidance of Steward Observatory professor, Chris Walker, students built and launched a cubesat! Learn more about the CatSat project and where some of the students are now: bit.ly/49x11t9
Check out this paper, written by Steward Observatory Professor Ann Zabludoff! In this paper, she discusses the projects she assigned as part of the Galaxies course (ASTR540) using large language models (LLMs). Check out the full paper for more information: bit.ly/4o38wxN
Congratulations to Professor Dennis Zaritsky, who was recently awarded the 2026 Rieke Prize by the Galileo Circle! Read more about his accomplishments and the rest of the Galileo Circle Awardees: bit.ly/43taRsl
Check out this new paper by Steward Observatory postdoctoral researcher, Dr. Griselda Arroyo-Chávez! She developed models to measure angular momentum is conserved in star forming regions. Check out her full paper: arxiv.org/abs/2603.06990















































