Key information
Duration
- Full-time: 96 months
Start dates & application deadlines
- Starting August 2027
- Apply before Dec 2026
Language
English
- Duolingo English Test: 95
- TOEFL iBT: 80
- PTE Academic: 56
- IELTS: 6
Credits
60 SCH
Delivered
On Campus
Campus Location
Flagstaff, United States
Disciplines
Astronomy & Space Sciences
Overview
Statement
- The Astronomy and Planetary Sciences program of the Northern Arizona University leverages state-of-the-art resources found in Arizona, and especially one of a kind facilities near Flagstaff, to deliver a unique and distinct graduate education that cannot be found in Arizona's other state universities.
- The Department of Physics and Astronomy will partner with Lowell Observatory, United States Geological Survey (USGS) Astrogeology Science Center, United States Naval Observatory, and the Naval Research Laboratory, as well as the Discovery Channel Telescope (DCT) and the Naval Precision Optical Interferometer (NPOI), all in or near Flagstaff. This program also capitalizes on the wide range of nearby geologic environments (including Meteor Crater) to enable terrestrial and analog planetary science investigations.
Programme Structure
Courses include:
- Spectroscopy
- Planetary Science
- Astrochemistry
- Dissertation
Admission requirements
Academic requirements
- GPA: 3
English requirements
- Duolingo English Test: 95
- TOEFL iBT: 80
- PTE Academic: 56
- IELTS: 6
Other requirements
General requirements
- Transcripts.
- Undergraduate degree from a regionally accredited institution with a 3.0 GPA on a 4.0 scale ("A" = 4.0), or the equivalent.
- A statement of interest describing why you are applying to NAU as well as your professional interests and goals
- A scientific/technical writing sample such as a senior thesis, MS thesis, major course paper or professional report demonstrating your analytical and writing skills
- Three letters of recommendation from people who know you well
- A current Curriculum Vitae
Tuition Fees
Tuition fees are shown in AUD and the most likely applicable fee is shown based on your nationality.
- International (Non-residents): 45,203 AUD / year ≈ 32,190 USD / year
- Out-of-State: 45,203 AUD / year ≈ 32,190 USD / year
- Domestic (In-State): 18,166 AUD / year ≈ 12,936 USD / year
Living costs
Flagstaff, United States – 1,418-2,106 AUD / month
The living costs include the total expenses per month, covering accommodation, public transportation, utilities (electricity, internet), books and groceries.
Funding
Scholarships: Below you will find PhD's scholarship opportunities for Astronomy and Planetary Science.

