ROSES 2025: B.7 The Heliophysics Low-Cost Access to Space
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.
Funder: NASA Headquarters
Due Dates: November 20, 2026 (Step-1 proposal) | March 16, 2027 (Step-2 proposal)
Funding Amounts: No cost sharing or matching required; typical ROSES awards last three years
Summary: Supports heliophysics research payloads through low-cost access to space, with emphasis on compatible flight platforms and suborbital research capabilities.
Key Information: A Step-1 proposal is required before submitting a Step-2 proposal.
Description
The Heliophysics Low-Cost Access to Space program is a NASA Science Mission Directorate opportunity within ROSES-2025. It addresses heliophysics research payloads and their flight needs, including matching payloads with multiple compatible flight platforms to identify the greatest suborbital research capabilities and launch flexibility. The program was added to ROSES-2025 by an October 7, 2026 amendment.
Proposals must describe resources available to accommodate a rideshare instrument on the flight. The call also addresses proposals self-identified as “science-enabling-only,” which require an Application of Traceability Matrix. The B.7 program guidelines, B.1 Heliophysics Research Program Overview, and ROSES Summary of Solicitation together describe the program-specific and common proposal requirements.
