| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): $7,401; 2027: Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based fee and participant-travel assistance: Amount: Unconfirmed — check official site. SSP committed to cover 100% of demonstrated need; exact award depends on family circumstances and may include participant airfare or other required travel.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): 2026 application fee: $0. Completely free to apply.; Need-based fee and participant-travel assistance: Amount: Unconfirmed — check official site. SSP committed to cover 100% of demonstrated need; exact award depends on family circumstances and may include participant airfare or other required travel.; 2027: Unconfirmed — check official site | Last year's cycle (2026): 2026 application fee: $85. Nonrefundable.; Enrollment deposit: $1,000. Nonrefundable and applied to the total.; Course materials and academic field trips: $300. Required 2026 fee.; Program and health-center fees: $429. $325 program fee plus $104 health-center fee.; Residential room and board: $3,440. Shared room and specified meals; not available as an option to international students because they must reside.; 2027: Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Last year's cycle (2026): Lost-wages stipend: $3,000; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 10–12; Grade timing: Unconfirmed — check official site | Grade 11 when applying; summer rising grade is one higher | Grades 10–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Ages 14–18; Residency: Students from the United States and abroad are eligible; international financial aid is case by case; Requirement: Be age 14-18 by the applicable program cutoff; Requirement: Have completed grade 9 or equivalent before the session; Requirement: Not be enrolled full time in a college or university by the program's first day; Requirement: Be available for the entire six-week residential session and comply with dormitory, curfew, visiting, safeguarding, and conduct rules; Requirement: Independently attempt the official application problem set and explain experiments, conjectures, proofs, and partial progress; Requirement: Submit the required recommendation, transcript, form, short answers, and any financial-aid documents; Requirement: Retain scratch work and be prepared to explain reasoning if originality is verified; Exclusion: Applicants outside the age/education window or already full-time college students at program start; Exclusion: Collaborative, copied, AI-assisted, internet-generated, uncited, or inadequately explained problem-set work; Exclusion: Applicants unable to reside for the full six weeks or follow residential/safety expectations; Exclusion: Assuming all eight problems must be solved or that prior advanced courses/research are required; Exclusion: Assuming selection guarantees aid, publication, conference presentation, college credit, recommendation, admission advantage, internship, or job | Ages 15–18; Requirement: Be a current high-school junior; Requirement: Be at least 15 and not yet 19 during all program dates; Requirement: Complete for credit and a grade by June any high-school physics plus precalculus; Requirement: If the school does not offer physics, complete calculus for credit and a grade by June instead; Requirement: Commit exclusively to the entire assigned residential session; Exclusion: Current freshmen, sophomores and seniors; Exclusion: Self-study used in place of the required graded coursework; Exclusion: Applicants unable to attend the complete assigned session; Exclusion: Applying to more than one SSP project in the same cycle | Residency: Domestic and international high-school students; Requirement: Complete at least grade 9 before the program; Requirement: Pursue a rigorous high-school curriculum; Requirement: Attend every class from the first day with no late arrival; Requirement: International participants must obtain required immigration documents and meet health-insurance requirements; Exclusion: Late arrival or partial attendance was not allowed; Exclusion: International applicants could not choose commuter status; Exclusion: Admission to the summer program does not constitute or guarantee USC undergraduate admission |
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| Session dates or duration | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site | Catalog terms: 5 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 | Boston, Boston University campus, Massachusetts | Albion, Milledgeville, McMinnville, River Falls, Waterville, Bethlehem, Galesburg, 2026 campus assigned after admission; campus list can change by cycle | Los Angeles, California |
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| Selection and application | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One recommendation | Selection: Admission is limited and holistic. SSP reported about 700 participants admitted across every 2026 track, but did not publish Astrophysics application totals or a track-specific acceptance rate. Application materials: One required recommendation from a current school math or science educator; Optional second recommendation, preferably from a math or science educator | Selection: Rolling admission based on academic preparation, essay, recommendation, transcript, and course capacity; popular classes can fill early. Application materials: Applicant-written 300-500 word essay; One online recommendation from a teacher, counselor, or mentor |
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| Official sources | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20 | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22Source 5 · checked 2026-08-20 | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21 |
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