University of Wisconsin–Madison
Professor and Associate Dean Eric Wilcots addresses a lecture hall in Sterling Hall.

Prospective Students

Astronomy, the oldest of the sciences, originated in the human urge to understand the mysterious lights we see in the sky above us — the Sun, the Moon, the planets, and the stars. Over the centuries, new tools have become available to study these cosmic icons — telescopes that allow us to see further and fainter, detectors that are sensitive to electromagnetic signals at non-visible wavelengths, and satellites that can observe from outside the confines of the Earth’s atmosphere. These tools have answered many questions, but raised even more. How did the Universe begin, and how did the stars and galaxies within it form? How will it end? Are there habitable planets around other stars — and has life emerged on these planets?

The UW Astronomy-Physics program builds on a foundation of classical and modern Physics, to embark on a comprehensive study of the observable Universe at scales extending from planets and stars, through to galaxies and the cosmic web.

Considering A Major In Astronomy?

The Undergraduate Catalog provides information on the Department, the major, requirements for the major, additional recommended courses, and Honors in the Major

The Course Guide includes complete astronomy course information (semester last taught, prerequisites, level, breadth and credit type)

NOTE: Astronomy majors should take the required 200-level physics classes before taking the range of 300-level upper level courses. Some 500-level graduate courses are open to undergraduate enrollment with instructor consent.

    Declare The Astronomy Major:

    Meet with the Astronomy-Physics Advisor, Evan Heintz first to discuss requirements.


    Then, email one of the Undergraduate Faculty Advisors, Prof. Juliette Becker or Professor Ke Zhang, to schedule an appointment to declare the major. Feel free to reach out to either of them if you need advising.