NASA will release the SpaceTech REDDI-2026 grant to fund innovative space technology research, development, and demonstration projects, with proposals accepted via NSPIRES starting December 2025.
NASA’s Phase I program supports nine-month studies of visionary concepts; U.S. organizations may apply through a two-step proposal process, with the solicitation expected around September 28, 2026.
NASA's Heliophysics Low-Cost Access to Space program seeks suborbital research payload proposals, with Step-1 due November 20, 2026, and required before Step-2, due March 16, 2027.
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.