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Public Evening Lecture Series



Since September 1922, Steward Observatory has been hosting public evening lectures in astronomy. The lectures begin at 7:30 p.m. MST and will be held in Steward Observatory Room N210 on the University of Arizona campus.  

All of the lectures are free of charge and open to the general public.

For more information, contact Dr. Thomas Fleming at 621-5049 or                                                                                                                          

Click here to stream podcasts of previous Public Evening Lectures.

Fall 2021 Lectures


For Fall 2021, if you attend the lecture in person, we ask that you wear a face mask while you are inside Room N210.  Face masks will be available in the room should you need one.

Should you not wish to attend in person, you can watch the lecture LIVE on ZOOM at:             





September 13

Dr. George Rieke

Regents Professor

Steward Observatory

The Biggest Telescope in Space -- JWST, How Did We Get Here?

September 27

Maj. James McGaha (Ret.), M.S.


Grasslands Observtory

Chasing Space Ghosts:  The Hunt for Imaginary Aliens

October 11

Dr. Marcia Rieke

Regents Professor

Steward Observatory

The Biggest Telescope in Space -- JWST, How We Built It

October 25

Dr. Christina Williams

Dr. Everett Schlawin

Steward Observatory

How JWST Will Give Us the Ingredients of New Worlds

November 8

Dr. Andras Gaspar

Dr. Stacey Alberts 

Steward Observatory

 Into the Mid-infrared with JWST: a Universe of Dusty Debris Disks, Galaxies and Black Holes

December 6

Dr. Jinyi Yang

Dr. Feige Wang

Steward Observatory

Peering into the Early Universe with JWST: the Most Distant Quasars and Their Environment


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.