NASA's ROSES25 B.2 Heliophysics Foundational Research solicits proposals for basic heliophysics research, with Step-1 proposals due May 1, 2026, and Step-2 invitations announced at least 60 days in advance.
Funder: NASA Headquarters
Due Dates: May 1, 2026 (Step-1 proposal deadline) | August 31, 2026 (solicitation closing date)
Funding Amounts: Typical award duration 3 years (some up to 5); budget amounts are per award, per year; no overall ceiling specified.
Summary: Supports foundational research in heliophysics as part of NASA's ROSES-2025 omnibus, advancing understanding of the Sun and its interactions with the solar system.
Key Information: Step-1 proposal required to submit Step-2; one PI submission per program element (exceptions apply); dual-anonymous review process.
This opportunity supports foundational research in heliophysics under NASA’s annual Research Opportunities in Space and Earth Sciences (ROSES) – 2025 omnibus. The program seeks proposals that advance basic and applied research to improve understanding of the Sun, solar phenomena, and their interactions with the solar system. Projects may involve theory, modeling, data analysis, and/or technology development relevant to heliophysics science goals.
Proposals are evaluated through a dual-anonymous review process to ensure fairness and objectivity. The program welcomes a broad range of research topics as defined in the B.2 Heliophysics Foundational Research element and the B.1 Heliophysics Research Program Overview.