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The Department of Astronomy and Steward Observatory is a world renowned scientific institution conducting research at the forefront of modern astronomy. Our faculty, postdoctoral fellows, and students are active in the fields of observational, computational, laboratory, and theoretical astronomy. 

There is a wide array of research interests reflected in the work of the departmentm from the detection of new planets to measuring light from more than half a Universe away. We have a significant focus on the design and construction of cutting-edge instrumentation both for ground and space based facilities. The demands of making precision measurements take our observers to far-flung telescopes, and demand pioneering design for new instruments. Additional information on research conducted at Steward Observatory is provided in the links on the right.



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.