DOE NNSA Stewardship Science Graduate Fellowship 2026: Get $45,000/Year Stipend (Apply by Jan 13)

The Department of Energy National Nuclear Security Administration (DOE NNSA) has opened applications for the Stewardship Science Graduate Fellowship (SSGF) 2026. This is one of the most prestigious and financially rewarding fellowships available for PhD students in fields critical to national defense and stewardship science.

Selected fellows will receive a significantly increased yearly stipend of $45,000 (up from previous years), along with full tuition coverage and an annual academic allowance. If you are a U.S. citizen pursuing a PhD in high-energy density physics, nuclear science, or materials under extreme conditions, this fellowship offers unparalleled resources and access to national laboratories. The application deadline is January 13, 2026.

Fellowship Overview & Key Details

Program Scope: What Will You Do?

The SSGF program is designed to train the next generation of scientists in areas critical to the U.S. nuclear stockpile stewardship. Research Areas: Your work must focus on complex problems in: High Energy Density Physics. Nuclear Science. Materials under Extreme Conditions & Hydrodynamics. Practicum: Fellows complete a 12-week research practicum at one of the DOE NNSA defense laboratories: Lawrence Livermore, Los Alamos, or Sandia National Laboratories (California/New Mexico). Conference: You will participate in an annual program review to present your research and network with top scientists.

Eligibility Criteria

This fellowship is highly selective and targets specific academic stages. To qualify, you must meet the following requirements:

• Citizenship: You must be a U.S. Citizen or Permanent Resident (Note: Some sources specify U.S. Citizens only for security clearance reasons; verifying via the portal is recommended).
• Academic Status: Open to senior undergraduate students and first- or second-year PhD students.
• Enrollment: You must be enrolled (or planning to enroll) as a full-time graduate student at an accredited U.S. college or university.
• Department Support: Your university department must agree to waive any teaching requirements beyond one term, allowing you to focus on research.

Financial Benefits

The financial package is exceptional, ensuring you can focus entirely on your studies: Stipend: $45,000 yearly living stipend. Tuition: Full payment of tuition and required fees. Allowance: $2,000 yearly academic allowance for research or professional development. Renewable: Support is renewable for up to 4 years, subject to academic progress.

Application Requirements

The application process is rigorous. You will need to submit:

1. Transcripts: Official transcripts from all universities attended (Deadline: Jan 27, 2026).
2. Program of Study (POS): A detailed plan generated in consultation with your graduate advisor.
3. Reference Letters: You must request letters from your advisor and other references. (Deadline for references: Jan 20, 2026).
4. GRE Scores: Check the portal for the current cycle's requirement, as many programs are making this optional.

How to Apply

Applications must be submitted online via the Krell Institute portal. Application Deadline: January 13, 2026. Supporting Materials Deadline: Late January 2026 (varies for transcripts/letters).

Official Application Link: Click Here to Apply for DOE NNSA SSGF