A.17 Hydrosphere supports researchers studying ocean physics, terrestrial hydrology, and precipitation, funding work on satellite measurements to advance understanding of water across Earth’s system.
NASA's ROSES 2025: A.17 Hydrosphere invites research proposals on hydrosphere topics, requiring a Step-1 proposal by Oct 8, 2026 and Step-2 by Jan 28, 2027, with dual anonymous peer review.
NASA’s ROSES 2025: A.16 Cryosphere program funds research on Earth’s frozen regions, requiring a Notice of Intent by Oct. 16, 2026, and proposals by Dec. 4, 2026, with dual anonymous peer review.
NASA's ROSES 2025 A.4 program funds rapid response and innovative Earth science research proposals, accepted any time until March 31, 2026, with details and requirements available in the program's official documents.
NASA seeks Heliophysics Spaceflight Science Foundations proposals, with required Step-1 proposals due November 20, 2026, and Step-2 proposals due February 5, 2027.
NASA's 2025 Geosphere research opportunity requires mandatory Notices of Intent through NSPIRES by November 16, 2026; program-specific requirements are in the full solicitation.