What is COSMOS?

The California State Summer School for Mathematics & Science

COSMOS is a 4-week, residential summer program for high school scholars with demonstrated interest and achievement in math and science. COSMOS provides students with an unparalleled opportunity to work side-by-side with outstanding researchers and UC Santa Cruz faculty, covering topics that extend beyond the typical high school curriculum. 

2024 Program Info!

We are recovering from our COSMOS 2023 program 
  • More specific dates for the 2024 cycle will be released in October 
  • Check out our instagram and blog for 2023 summer highlights

Dates & Deadlines

  • late Nov, Dec, Jan
    Zoom Info Sessions, links to Zoom will be posted here in Nov
  • early Dec
  • Clusters Finalized
  • 2nd week of Jan
  • Application Opens
  • 2nd week of Feb
  • Application Closes, Financial Aid Application Due
  • Late March 
  • 1st round of admits notified
  • Spring
  • Portal Confirmation, Tuition, and Acceptance Packet Due
  • Early June
  • Zoom Orientation Sessions for Admitted  Students who have Confirmed COSMOS Attendance and Paid Tuition 
  • Late June
  • Welcome Email: Opening Day Instructions, Recording of Orientation, etc.
  • Sun, July 7-Sat, Aug 3
  • 2024 Program Dates


Clusters listed below are 2023 offerings. Explore our COSMOS “clusters” or courses provided here at UCSC by clicking the images below!  Each cluster is comprised of two science, math and/or engineering courses and one transferable skills course.  (if an “*” follows the cluster title, that cluster has a prerequisite)