| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $2,500; 2027: Unconfirmed — check official site | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | $5,793 (2027 cycle) |
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| Financial aid | Last year's cycle (2026): Need-based scholarship (after acceptance): Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site | Catalog terms: Application fee waiver: Amount: Unconfirmed — check official site. For students eligible for Free & Reduced Lunch or who qualify for financial aid.; 2027: Unconfirmed — check official site | 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): Need-based scholarship (after acceptance): Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site | Catalog terms: Non-refundable application processing fee: $40. Waived for students eligible for Free & Reduced Lunch or who qualify for financial aid.; Application fee waiver: Amount: Unconfirmed — check official site. For students eligible for Free & Reduced Lunch or who qualify for financial aid.; 2027: Unconfirmed — check official site | 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 | Catalog terms: Learning stipend based on total internship hours: $500–$1,500; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grade 12 (provider uses rising grades) | Grades 10–12 (provider uses rising grades) | Grades 9–12 (provider uses rising grades) |
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| Additional eligibility | Requirement: Open to rising grade 12; Requirement: Recommended (not required): three years of high-school math and one year of chemistry or physics completed before the program | Residency: Reside in the United States throughout the program; Residency: Live within 50 miles of the internship position, or with adult family or friends near it for the summer; Requirement: Open to rising grades 10–12; Requirement: Have not held an ASE internship before; Requirement: Interest in a math or science career and readiness for a professional environment; Requirement: Reliable transportation to the internship location; Requirement: Proof of health insurance; Requirement: Mentor may not be a family member | 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 July 5, 2026; Ends August 1, 2026; 1 week; 2027: Unconfirmed — check official site | Catalog terms: 4–10 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person / Hybrid | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | West Lafayette, IN | Portland, Corvallis, OR | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA |
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| Selection and application | Selection: Rolling review until limited sessions fill; waitlist afterward. No acceptance rate is published. | Selection: Competitive: more than 400 applicants for fewer than 100 positions, with roughly 75 internships typically offered. Matching also depends on position prerequisites and mentor rankings. Application materials: Two adult recommendations; Interview with some mentors | 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 2026-08-20Source 3 · 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 2026-08-20 | 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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