About Us

About Flandrau

Located in the heart of the University of Arizona campus, Flandrau Science Center & Planetarium is a community destination for science education that engages visitors of all ages in Tucson and beyond.

Inspiring Future Scientists Since 1975

We invite you to explore our universe from Earth to space and everything in-between, bringing science alive for young and life-long learners alike. Engaging exhibits focus on space science, biology, energy, optics and more, weaving in ground-breaking University of Arizona research and revealing the world of science careers for budding scientists.

Sit back, relax and experience an amazing immersive science journey in the Eos Foundation Planetarium Theater – Southern Arizona’s only planetarium. Recently renovated with state-of-the-art projection technology, sound system, and seating, it’s an experience you don’t want to miss.

The Flandrau observatory features a 16-inch telescope with free viewing where our volunteer astronomers can show you Saturn's rings, the cloud belts of Jupiter, the Andromeda galaxy and other stunning and beautiful images that will forever transform the way you see our own world.

Flandrau also offers science-themed summer and day camps called “Fusion Camps”, birthday parties, private events for special occasions, group visits, field trips, and more. Stay tuned to our website and newsletter for special events and updates.


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Flandrau Exterior 1975

Our History

Flandrau Science Center & Planetarium got its start with a 1972 bequest from the estate of Grace H. Flandrau, noted author and frequent winter visitor to Tucson. The University decided to use the generous gift to fund a facility that would increase public understanding and appreciation of science.

Originally known as The Grace H. Flandrau Planetarium, the facility was part of the UArizona Department of Astronomy. Its location on campus, near the Astronomy Department, Optical Sciences Center, Lunar and Planetary Laboratory and historic Steward Observatory, reflects its continuing connections to the research community.

The Planetarium was designed by Tucson architectural firm Blanton and Company and opened its doors to the public in 1975.

Learn more about the history of Flandrau here.


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Flandrau Theatre Seats

The Next Chapter

The spirit of generosity allowed for a new vision for Flandrau’s planetarium to take shape. In Summer 2014, thanks to gifts from the Tucson Foundations, Wells Fargo and The Eos Foundation, the planetarium received a technological upgrade to its projection system. This first phase of renovation featured A SCISS Colorspace projection system, complete with 4K resolution fulldome projection, dynamic planetarium software, and 18,000 watts of Dolby 5.1 sound, bringing the experience into the realm of cutting edge planetariums worldwide.

In the summer of 2016, Flandrau completed the second phase of the renovation to the planetarium theater – the largest renovation to Flandrau since opening its doors in 1975. A complete renovation to the planetarium theater involved removal of the original seats and star projector and installation of all new theatrical lighting, carpet and acoustic treatments, and an entirely new seating arrangement with new chairs. Thanks to the generous gift of the Eos Foundation – The Eos Foundation Theater was born and opened to awestruck audiences on August 27, 2017.