ROSES 2025: A.17 Hydrosphere

The NASA Science Mission Directorate is soliciting proposals for the ROSES‑2025 “A.17 Hydrosphere” element, focusing on Earth‑science research related to the planet’s hydrosphere. Applicants must submit a two‑step proposal: a brief Step‑1 submission by October 8 2026, followed by a full Step‑2 proposal by January 28 2027. Proposals are evaluated through a dual‑anonymous peer‑review process, and the scientific/technical/management narrative is limited to ten pages. Funding will be provided as a grant or cooperative agreement, typically for a three‑year performance period. Interested parties may attend an informational briefing on September 14 2026. • Two‑step submission: Step‑1 due 10/08/2026, Step‑2 due 01/28/2027. • Funding mechanism: Grant or Cooperative Agreement (NASA). • Expected award term: ~3 years (up to 5 years for some elements). • Evaluation: Dual‑anonymous peer review; 10‑page technical narrative limit. • Mandatory pre‑proposal briefing on 09/14/2026 (informational, not required). • Open to U.S. institutions (with limited non‑U.S. participation). • Contact: Caleb Schuler, NASA Headquarters, (240) 616‑9381, [email protected].