NASA Headquarters is offering a federal grant opportunity titled "ROSES 2025: C.2 Solar System Science," aimed at advancing research in solar system science through various program elements under the Research Opportunities in Space and Earth Sciences (ROSES) framework. Proposals may be submitted at any time until the final deadline of March 31, 2026, with eligibility primarily for U.S. institutions, although some provisions exist for non-U.S. organizations under specific guidelines. This grant is part of a broader initiative to support a wide range of scientific research and technology development, with awards typically structured as grants, cooperative agreements, or contracts, depending on the proposed work. Interested applicants can find more information and specific proposal requirements by visiting the NASA NSPIRES website or contacting the grantor at hq-scubed@mail.nasa.gov.