Comments Due by 13 July 2026

Research Opportunities in Space and Earth Sciences (ROSES)-2025 is an ongoing "omnibus" or "umbrella" solicitation meaning that it includes many individual program elements each with its own topics and due dates. Refer to Table 3 of ROSES-25 for a list of those program elements. The ROSES-25 "Summary of Solicitation" is the front matter that sets the default backstop rules for each of the program elements in ROSES-25.

ROSES-25 Amendment 59 makes several additions, changes, and clarifications to the ROSES-25 Summary of Solicitation [PDF] to conform with Agency and administration priorities, see Sections I, I(g), II(a), II(b), III(b), III(d), V(b)ii, VI(c) & VIII(b). New text is in bold.

Important and substantial revisions to 2 CFR 200, the government-wide guidance for grants and cooperative agreements are proposed to take effect October 1, 2026; see the proposed regulation webpage on the Federal Register. Many types of currently allowable costs, such as but not limited to publications, research or events outside the United States, and domestic conferences may be restricted, denied, or may be allowable by legal exception or special award conditions only. Public comments on the revisions to 2 CFR 200 may be submitted until 13 July 2026, using the OMB comments portal.

Questions concerning this amendment to ROSES-25 may be directed to SARA@nasa.gov.