| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $4,860; 2027: Unconfirmed — check official site | $3,445–$7,195 (2027 cycle) | $5,793 (2027 cycle) |
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| Financial aid | Last year's cycle (2026): Scholarships: Amount: Unconfirmed — check official site. Apply before registering and paying any fees.; 2027: Unconfirmed — check official site | Sibling discount (5% of tuition): Amount: Unconfirmed — check official site. Discounts cannot be combined.; Educator-parent discount (10% of tuition): Amount: Unconfirmed — check official site. Requires proof of full-time employment as a primary or secondary educator.; Scholarships through partner organizations: Amount: Unconfirmed — check official site (2027 cycle) | 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) |
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| Expenses and aid conditions | Last year's cycle (2026): Summer 2026 nonrefundable registration deposit: $200. Part of the program cost.; Scholarships: Amount: Unconfirmed — check official site. Apply before registering and paying any fees.; 2027: Unconfirmed — check official site | Application fee: $95. Non-refundable.; Enrollment deposit: $700; Sibling discount (5% of tuition): Amount: Unconfirmed — check official site. Discounts cannot be combined.; Educator-parent discount (10% of tuition): Amount: Unconfirmed — check official site. Requires proof of full-time employment as a primary or secondary educator.; Scholarships through partner organizations: Amount: Unconfirmed — check official site (2027 cycle) | 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) |
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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; Grade timing: Unconfirmed — check official site | Grades 7–12 and first-year college (provider uses rising grades) | Grades 9–12 (provider uses rising grades) |
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| Additional eligibility | Ages 14–18; Requirement: Open to grades 9–12 | Requirement: Open to rising grades 7–13; Requirement: High school trips: entering 9th grade through graduating 12th grade; Requirement: Middle school trip: entering 7th grade through graduating 8th grade | 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) |
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| Session dates or duration | Last year's cycle (2026): Starts June 15, 2026; Ends June 26, 2026; 2 weeks; 2027: Unconfirmed — check official site | Catalog terms: 1–3 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | 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 | Salt Lake City, UT | Program-specific international and U.S. territory itineraries; current departures use Houston, New York, Miami or self-booked flights | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA |
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| Selection and application | Selection: The 2026 cohort reached capacity and accepted waitlist interest. Scholarships were limited and considered merit and need. Current cohort size, applicant count, acceptance rate, selection rubric, and waitlist movement are not published. | Selection: Capacity- and fit-based enrollment rather than a single selective cohort. A completed application and payment reserve a space subject to trip availability, documentation, health and conduct requirements. | 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) |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20 | 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 |
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