NASA Headquarters is offering a federal grant opportunity titled "ROSES 2024: D.15 LISA Preparatory Science," aimed at supporting research and development in space and Earth sciences. Proposers must be affiliated with a U.S. institution, as NASA primarily funds domestic organizations, although some provisions exist for international collaboration under specific guidelines. This grant is part of the broader Research Opportunities in Space and Earth Sciences (ROSES) initiative, which encompasses various program elements with distinct due dates and topics, emphasizing the importance of basic and applied research in these fields. Interested applicants must submit a mandatory Notice of Intent by January 17, 2025, and can find further details and application instructions on the NSPIRES website, with the proposal submission deadline set for March 20, 2025. For inquiries, contact Thomas Hams at thomas.hams-1@nasa.gov or call (202) 358-5162.