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    Leiden University

    Astronomy and Data Science

    Last verified against the official program page on .

    Leiden, NLMScIn-person2 years
    €45,000.00
    Tuition
    over 24mo
    120
    Credits
    €100.00
    App fee

    Astronomy and Data Science at Leiden University is a 120-credit, 2-year, in-person MSc program based in Leiden, NL. Tuition is €45,000.

    About the program

    Two-year program combining advanced astronomy courses, computer science courses on data mining and machine learning, and two research projects focusing on big-data aspects of astronomy and computer science.

    Focus: both

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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

    Spring 2027
    Oct 15, 2026

    Standardized tests

    TOEFL
    optional
    Min internet based: 90 overall, with at least 4.0 (new 1-6 scale as of 21 January 2026) or 20 (old 0-30 scale) for each separate component
    IELTS
    optional
    Min Academic modules only, on paper or on computer: 6.5 overall, with at least 6.0 for each separate component score

    After the program

    Post-study work rights

    1 year Orientation Year (zoekjaar) permit (Netherlands)

    €14,294.00
    Annual living cost

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    Self-reported profiles of past applicants to this program.

    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 Astronomy and Data Science at Leiden University cost?
    The total estimated tuition for Astronomy and Data Science at Leiden University is €45,000 across 120 required credits.
    Is Astronomy and Data Science at Leiden University online or in-person?
    Astronomy and Data Science at Leiden University is offered in-person.
    How long does Astronomy and Data Science at Leiden University take to complete?
    Astronomy and Data Science at Leiden University is structured around 2 years and 120 credits.
    What work-permit options follow Astronomy and Data Science at Leiden University?
    Post-completion work rights for Astronomy and Data Science at Leiden University: 1 year Orientation Year (zoekjaar) permit (Netherlands)