NASA Headquarters is offering a federal grant opportunity titled "ROSES 2024: F.4 Habitable Worlds," aimed at supporting research 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 non-U.S. entities under specific guidelines. This grant is part of the annual Research Opportunities in Space and Earth Sciences (ROSES) announcement, which encompasses various program elements with distinct due dates and topics, emphasizing the importance of basic and applied research in these fields. Interested applicants should submit their Step-1 proposals by November 8, 2024, and can find additional details and required documents at the provided NASA solicitation link. For inquiries, contact Rebecca McCauley Rench at rebecca.l.mccauleyrench@nasa.gov or Galen Fowler at galen.fowler@nasa.gov.