ROSES 2025: C.2 Solar System Science

About this funding opportunity

This program element does not have a proposal due date. Proposals may be submitted at any time, pending certain eligibility timing issues related to resubmissions and duplicate proposal avoidance, see the program element text and appropriate overview appendix (e.g., B.1 or C.1). The date shown of 8/1/2026 is the last day that proposals may be submitted subject to the ROSES-25 rules and the current GCAM. The ROSES-26 version of this program element is planned to overlap with this ROSES-25 version by a few weeks, allowing continuous submission of proposals across ROSES years.

NOTICE: Updated July 21, 2026. The Anticipated Award Start Date for last submissions in Table C.2-1 in Section 3.1 has been updated. The requirements for Biographical Sketches and Current and Pending Support in Section 3.5 have been updated, as have the Expected program budget for first year of new awards and Number of new awards pending adequate proposals of merit in Section 6. New text is in bold and deleted text is struck through.

NOTICE: Research security training required starting August 5, 2026. All PIs and any Co-Is that would spend ≥ 10% time on a proposed grants or cooperative agreements must certify they have taken research security training. NASA will be satisfied with the four online research security training modules on the National Science Foundation's (NSF) Research Security Training website at https://www.nsf.gov/research-security/training or the SECURE Center condensed version of the four modules at https://www.secure-center.org/ctm

NOTICE: Amended July 2, 2026. Table C.2-1: Submission and Review Dates in Section 3.1 has been updated and a new row with a new final cut-off date of November 12, 2026, has been added. In addition, this amendment reminds proposers of two important upcoming process changes:

Potential proposers are reminded in Section 3.1 that for any proposal for federal assistance submitted > August 5, 2026, PIs and any Co-Is that would spend > 10% time on a proposed grants or cooperative agreements must certify they have taken research security training. NASA will be satisfied with the four online research security training modules on the National Science Foundation’s (NSF) Research Security Training website at https://www.nsf.gov/research-security/training or the SECURE Center condensed version of the four modules at https://www.secure-center.org/ctm

The Summary of Requirements for Expertise and Resources Not Anonymized Document in Section 3.5 was updated to indicate that biographical sketches and current and pending support documents submitted after September 1, 2026 must use the NASA-specific Science Experts Network Curriculum Vitae (SciENcv) format found at https://www.ncbi.nlm.nih.gov/sciencv/ per Grant Notice 26-01.

NOTICE: Amended, January 22, 2026. Table C.2-1: Submission and Review Dates in Section 3.1 has been updated and a new final row with a cutoff date of August 1, 2026, has been added. Also, the expected budget and number of new awards in Section 4 have been increased. New text is in bold and deleted text is struck through.

NOTICE: Corrected September 9, 2025. NASEM Astrobiology Strategy citation was corrected to 2019 (see Section 1.1.3), reference to the anonymized Table of Work Effort was added to Section 3.2, and HEC request is not included in anonymized proposal (see Section 3.5). New text is in bold and deleted text is struck through.

NOTICE: ROSES-25 Amendment 7 makes the following changes to C.1 the Planetary Research Overview: It establishes funding threshold and submission requirements for substantial instrument or equipment requests (Section 3.11), removes the estimated page limit for pilot studies (Section 3.4) and clarifies text on use of spacecraft mission data (Section 3.5). New text is in bold and deleted text is struck through. A Planetary Science Overview FAQ has been posted under other documents on NSPIRES pages for all of Appendix C.

NOTICE: Amended August 1, 2025. This amendment…

Topic areas: General and Cross-cutting R&D, Space and Aerospace.

Funding amount

This cooperative agreement provides Varies in funding.

Deadline

Applications are due Nov 12, 2026. Confirm the exact closing time on the official program page before applying.

Who can apply

This opportunity is open to the following applicant types:

• Other
• Research Organization
• University

Eligibility

Proposers must be affiliated with an institution at nspires.nasaprs.com/ and, in general, NASA provides funding only to U.S. institutions. Organizations outside the U.S. that propose on the basis of a policy of no-exchange-of-funds; consult the NASA Grant and Cooperative Agreement Manual (GCAM) (https://www.nasa.gov/grants-policy-and-compliance-team/#Regulations) for specific details. Some NRAs may be issued jointly with a non-U.S. organization, e.g., those concerning guest observing programs for jointly sponsored space science programs, that will contain additional special guidelines for non-U.S. participants. Also reference the GCAM for special instructions for proposals from non-U.S. organizations that involve U.S. personnel for whom NASA support is requested.

Agency

ROSES 2025: C.2 Solar System Science is administered by NASA Headquarters (HQ), listed via Grants.gov.