Summer program

COSMOS

University of California

Students study STEM topics in residential programs at University of California campuses.

2027 application deadline

Not posted yet

Last cycle’s deadline was Feb 6, 2026. This is a reference, not a 2027 date.

Cost	Paid. 2026 program cost: $5,518. A separate application fee applies.Source ↗Checked 2026-10-28 · View evidence PROGRAM COSTS -- $5,518 (Non-refundable) Source ↗Checked 2026-10-28 · View evidence $46 Application fee due by Friday Source ↗Checked 2026-10-28 · View evidence Tuition for 2026 is $5,518. Tuition covers all cluster materials and activities.
Financial aid	OfferedSource ↗Checked 2026-10-28 · View evidence Financial assistance is available for application and program costs. Source ↗Checked 2026-10-28 · View evidence Yes, Financial aid is available and distributed based on need
Format	ResidentialSource ↗Checked 2026-10-28 · View evidence intensive four-week Summer Residential Pre-College program Source ↗Checked 2026-10-28 · View evidence The California State Summer School in Mathematics and Science (COSMOS) at UC Santa Cruz is a rigorous, four-week residential program for talented and motivated students.
Location	Not stated
Current grade	Not stated
Eligibility	California high school students only.Source ↗Checked 2026-10-28 · View evidence COSMOS is open to California High School Students Only
Program dates	Not stated
Applications open	Not stated
2027 deadline	Not posted yet
Last cycle’s date	Feb 6, 2026Source ↗Checked 2026-10-28 · View evidence Online Application Closes Friday, February 6, 2026 Source ↗Checked 2026-10-28 · View evidence Application Deadline February 6, 2026 All application materials due by 11:59 p.m. PST.

Checked 2026-10-28. Last cycle’s costs and dates are labeled where applicable. Program pages can change. How we check facts ↗