| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | February 12, 2027 (2027 cycle) |
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| Cost | $5,793 (2027 cycle) | Unconfirmed — check official site | $600 (2027 cycle) |
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| Financial aid | Need-based financial assistance for application and program costs: Amount: Unconfirmed — check official site. Based on family income, family size and available COSMOS resources. (2027 cycle) | Catalog terms: Need-based bursary: Amount: Unconfirmed — check official site. Partial or full awards covering up to 100% of programme tuition; for students at non-fee-paying schools or receiving financial assistance at a fee-paying school.; 2027: Unconfirmed — check official site | Fee waiver for students eligible for free or reduced lunch: Amount: Unconfirmed — check official site. Granted to the extent funds are available. (2027 cycle) |
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| Expenses and aid conditions | Application fee: Amount: Unconfirmed — check official site. Non-refundable; fee waivers can be requested.; Need-based financial assistance for application and program costs: Amount: Unconfirmed — check official site. Based on family income, family size and available COSMOS resources. (2027 cycle) | Catalog terms: Booking deposit to secure a place: Amount: Unconfirmed — check official site; Need-based bursary: Amount: Unconfirmed — check official site. Partial or full awards covering up to 100% of programme tuition; for students at non-fee-paying schools or receiving financial assistance at a fee-paying school.; 2027: Unconfirmed — check official site | Fee waiver for students eligible for free or reduced lunch: Amount: Unconfirmed — check official site. Granted to the extent funds are available. (2027 cycle) |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 9–12 (provider uses rising grades) | Unconfirmed — check official site | Grade 10 when applying; summer rising grade is one higher |
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| Additional eligibility | Residency: California high school students only; Requirement: Open to rising grades 9–12; Requirement: Demonstrated academic excellence (a typical COSMOS student has a GPA of 3.5 or above) | Ages 13–18; Requirement: Each course has its own age band (for example 13-15, 15-18 or 16-18) | Residency: Missouri; Requirement: Open to students currently in grade 10 when applying; Requirement: Attend high school in Missouri or be homeschooled in Missouri |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Catalog terms: 2 weeks; 2027: Unconfirmed — check official site | Starts June 13, 2027; Ends July 3, 2027; 3 weeks (2027 cycle) |
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| Format | In person | In person / Online | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA | Cambridge, London, New York, Oxford, Singapore, Sydney, Tokyo, Toronto, NY | Columbia, MO |
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| Selection and application | Selection: Each of six campuses accommodates roughly 160-200 students, and clusters typically enroll 20-25 with a commonly reported 5:1 student-to-faculty ratio. Admissions are competitive and based on academic merit relative to the selected topic, but applicant count and statewide acceptance rate were not published. Application materials: Online application with one personal statement; One teacher recommendation (two recommended) | Selection: Enrollment is reviewed for age, readiness, program fit, English proficiency, and space. The current public form does not publish a single acceptance rate or cohort size for the whole program family. | Selection: School nomination allotments limit the pool, a statewide committee evaluates academic and qualitative criteria, and about 330 scholars are expected in 2027. MSA does not publish a current nomination count or acceptance rate. Application materials: Two letters of recommendation, at least one from a teacher; Two essays of 300-350 words |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-10-24Source 6 · checked 2026-10-24Source 7 · checked 2026-08-22Source 8 · checked 2026-08-22Source 9 · checked 2026-08-22Source 10 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-08-22 |
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