NASA Headquarters is offering a federal grant opportunity titled "ROSES 2025: A.9 Ocean Salinity Science Team," aimed at advancing research in ocean salinity science. Eligible applicants must be affiliated with U.S. institutions, and the program encourages proposals that contribute to NASA's broader goals in Earth science and technology development. This grant is part of the Research Opportunities in Space and Earth Sciences (ROSES) 2025 solicitation, which encompasses various program elements, each with specific objectives and deadlines. Proposals are due by September 4, 2025, and interested parties should submit optional Notices of Intent by August 1, 2025. For further details, applicants can contact Nadya Vinogradova Shiffer at nadya@nasa.gov or visit the official announcement at https://solicitation.nasaprs.com/ROSES2025.