University of California
California State Summer School for Mathematics and Science (COSMOS)
Competitive four-week residential UC STEM program for California students rising into grades 9-12, offered at six campuses through faculty-led academic clusters.
- Application deadline
- Unconfirmed — check official site
- Cost
- $5,793 (2027 cycle)
- Session dates or duration
- Catalog terms: 4 weeks; 2027: Unconfirmed — check official site
- Format
- In person
- Location
- Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA
- Stipend or pay
- Unconfirmed — check official site
Eligibility: Grades 9–12 (provider uses rising grades)
California high school students only
Housing: Residential. Supervision and housing details: Unconfirmed — check official site
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.
Full details and official sources
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)
Full eligibility requirements: 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)
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)
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Last source check . Official source