ROSES 2025: C.2 Solar System Science
NASA’s ROSES 2025 C.2 Solar System Science program accepts proposals on solar system research any time until 3/31/2026, with details and requirements available in the full program solicitation.
Funder: NASA Headquarters
Due Dates: September 15, 2025 | March 31, 2026 | August 1, 2026 | November 12, 2026
Funding Amounts: Typical awards are for 3 years; some programs allow up to 5 years. Award size varies; see program text for details.
Summary: Supports basic and applied research in solar system science through grants and cooperative agreements under the ROSES-2025 omnibus.
Key Information: Research security training required for PIs/Co-Is spending ≥10% effort on proposals submitted after August 5, 2026.
Description
This opportunity provides funding for research in solar system science as part of NASA's annual Research Opportunities in Space and Earth Sciences (ROSES) omnibus announcement. The program supports a broad range of basic and applied research aligned with the Science Mission Directorate’s goals, including planetary science, astrobiology, and related technology development. Proposals may cover observational, theoretical, laboratory, or modeling studies, and may request support for instrument or equipment development as appropriate. Each ROSES "program element" has its own requirements and deadlines; this element focuses on the Solar System Science topic area.
