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    University of Arizona

    Master of Science in Geosciences

    Last verified against the official program page on .

    Tucson, USMSIn-person2 years
    STEM-OPT
    $46,800.00
    Tuition
    over 24mo
    30
    Credits
    $95.00
    App fee

    Master of Science in Geosciences at University of Arizona is a 30-credit, 2-year, in-person MS program based in Tucson, US. Tuition is $46,800 and the program is STEM-OPT eligible for international students.

    About the program

    Two-year research-based program requiring 30 units of coursework, a research proposal, thesis, and public presentation. Covers fields including biogeochemistry, climate dynamics, geochemistry, geophysics, and tectonics.

    Focus: research
    US News: No. 5 Geology, No. 6 Geochemistry, No. 4 Earth Sciences

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    Admissions

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    GPA thresholds, GRE/TOEFL/IELTS minimums, essay counts, recommendation letters, prerequisites, admissions contacts, and country-specific requirements like APS certification, portfolio submissions, or GATE scores.

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    Deadlines

    Fall 2027
    Jan 5, 2027

    Standardized tests

    TOEFL
    optional
    Min Minimum score of 79 iBT (for tests prior to January 21, 2026); Minimum overall score of 4.0 on the TOEFL 1-6 scale (on or after January 21, 2026). Note, for Master's programs, we also accept the TOEFL Essentials test with a minimum band score of 9.5. (Graduate College minimum; program uses acceptable Graduate College English Proficiency credential)
    IELTS
    optional
    Min IELTS Academic / IELTS Online: minimum composite score of 7, with no subject area below a 6 (from some sources); Graduate College lists as acceptable but specific minimum not detailed in highlights. (Graduate College minimum; program uses acceptable Graduate College English Proficiency credential)

    After the program

    Post-study work rights

    12 months OPT (US), 24 months STEM OPT (US)

    $16,800.00
    Annual living cost

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    Prerequisites

    Specific coursework this program expects you to have completed: calculus, linear algebra, programming, statistics, and subject-specific prerequisites where applicable.

    Recommendations

    Exact count of letters required, whether academic vs professional references are preferred, and any program-specific guidance on who to ask.

    Essays

    Number of essays required (statement of purpose, personal statement, diversity statement), prompts where the program publishes them, and whether supplemental essays are optional or mandatory.

    Contact

    Direct email and phone for the admissions office handling this program, plus a link to the program-specific inquiry page where available.

    Frequently asked questions

    How much does Master of Science in Geosciences at University of Arizona cost?
    The total estimated tuition for Master of Science in Geosciences at University of Arizona is $46,800 across 30 required credits.
    Is Master of Science in Geosciences at University of Arizona online or in-person?
    Master of Science in Geosciences at University of Arizona is offered in-person.
    How long does Master of Science in Geosciences at University of Arizona take to complete?
    Master of Science in Geosciences at University of Arizona is structured around 2 years and 30 credits.
    Is Master of Science in Geosciences at University of Arizona STEM-OPT eligible?
    Yes - Master of Science in Geosciences at University of Arizona is STEM-OPT designated, allowing international graduates to extend their post-completion OPT for up to 36 months total.
    What work-permit options follow Master of Science in Geosciences at University of Arizona?
    Post-completion work rights for Master of Science in Geosciences at University of Arizona: 12 months OPT (US), 24 months STEM OPT (US)