PhD Astronomy and Astrophysics at University of Arizona

Programme overview

With an emphasis on original research, the Astronomy and Astrophysics doctoral program trains you to be an independent scientist equipped to investigate, experiment and communicate results. As you build firsthand experience with the tools and facilities that define the field of astrophysics, you'll receive mentoring from a team of program advisers and faculty, scientists and researchers, and peers.

Faculty: College of Science | Duration: 6 years / 54 units | Study mode: full-time | Location: Tucson, AZ, United States

What you will study

18 units of graded core courses ASTR 589 (3 units): Physics of Astrophysics ASTR 501 (1 unit): Introduction to Computing ASTR 541 (3 units): Cosmology ASTR 545 (3 units): Stars and Planets ASTR 513 (3 units): Statistical and Computational Methods ASTR 540 (2 units): Structure & Dynamics of Galaxies ASTR 515 (2 units): Interstellar Medium & Star Formation ASTR 518 (2 units).

Official programme page

Application information

Entry requirements

Graduate College minimum (applies to all programmes; departments may add requirements): regionally accredited bachelor's degree or comparable international degree and a minimum 3.00 GPA for degree programmes on a 4.00 scale. The Graduate College does not require the GRE, though individual programmes may. Programme-specific requirements are listed in the Graduate Admissions Guide.

Domestic applicants: USD 15,500 a year (2026-27). FY 2027 published base tuition for the Resident Graduate rate band, which applies to main-campus graduate programmes. Excludes mandatory fees, college fees, program fees and differential tuition, housing and meal plans. Source

International applicants: USD 35,800 a year (2026-27). FY 2027 published base tuition for the Non-Resident Graduate rate band, which applies to main-campus graduate programmes. Excludes mandatory fees, college fees, program fees and differential tuition, housing and meal plans. Source

Spring semester begins January 13 and fall semester begins August 23 for undergraduate international students; for graduate students spring begins January 14 and fall August 25.

Apply through the official page: https://grad.arizona.edu/admissions

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