The Catalina Sky Survey—supported by Steward Observatory’s Mountain Operations—detects the ninth asteroid ever to be spotted prior to impact Wednesday Read more Image
September 13: Recipient of the 2024 Marc Aaronson Prize Offers Public Lecture on the Most Powerful Explosions Since the Big Bang Sept. 4, 2024 Read more Image
Tune into a deep-dive radio segment on the Sky School, featuring Rob McGehee! Aug. 13, 2024 Read more Image
Watch: University of Arizona's Sky School featured on Arizona Illustrated July 21, 2024 Read more Image
Reflecting hope: Concentrating solar power can feed the grid and perhaps even remove carbon from Earth's atmosphere July 18, 2024 Read more Image
Northwestern Professor Wen-fai Fong Honored with Steward Observatory’s 2024 Marc Aaronson Prize July 3, 2024 Read more Image