5 different services to watch one sport, and they wonder why viewership is dying

For 40 years, Michelle Cournoyer has supported students and faculty, solved problems, and shown up with heart. As she prepares to retire this August, we celebrate the impact of a true Steward Observatory legend: bit.ly/3GWkAQv

The first photos from the Vera Rubin Observatory are stunning — thanks in part to the University of Arizona, which helped build its mirror. Proud to see Arizona leading the way in space science.

Space Drafts 107 is coming your way on May 20! 7:30pm AZ time at Borderlands Brewing's downtown location and bit.ly/SpaceDrafts107! Steward astronomers Dr. Koushik Sen and Vikram Manikantan (@vikmani.bsky.social) will be talking about eclipsing binary stars and black holes!

Trump's campaign of revenge against the United States. Smart people like scientists didn't support him so he's trying to destroy scientists, their careers and their work. Hail to the thief.

"Attorney General shall initiate appropriate action to repeal or amend the implementing regulations for Title VI of the Civil Rights Act of 1964 for all agencies" What's Title VI? "prohibits discrimination against or otherwise excluding individuals on the basis of race, color, or national origin"

My god. He’s gone after the Civil Rights Act!!!! www.whitehouse.gov/presidential...

new paper yesterday! and first on the arxiv! arxiv.org/abs/2504.12375 we use GRMHD simulations and radiative transfer to show that eccentric binary black holes are unique in their accretion rate, jet power, and synchrotron emission in IR and optical wavelengths

Exploring Tucson? The New York Times recommends heading to the Mt. Lemmon SkyCenter, where scientists lead "staggering viewings through giant telescopes." Be sure to book your viewing! skycenter.arizona.edu/news/nyt-spe...

Every semester, our graduate students are awarded three nights of observing time on the Kuiper 61" telescope for eyepiece observing! It is a truly unique opportunity to use research-grade facilities to connect with the dark skies near Tucson 🔭 Image credits: Mahdi Naseri

a social media app that doesn’t ruin my day every time I open it? Hello Bluesky 🦋🫡 I’m happy to be here

Welcome to Steward Observatory’s official Bluesky account! We represent both the century-old astronomy research unit and the Department of Astronomy at the University of Arizona. Follow to hear about our world-leading research, our outreach efforts, and the people who make it all happen.