ROSES25: D.8 Habitable Worlds Observatory Precursor Science Investigation
NASA's ROSES-2025 is soliciting proposals for precursor science investigations supporting the Habitable Worlds Observatory, with mandatory NOIs due September 10, 2026, and proposals due October 26, 2026.
Funder: NASA Headquarters
Due Dates: September 10, 2026 (Mandatory Notice of Intent) | October 26, 2026 (Full Proposal)
Funding Amounts: Typical period of performance is 3 years; some awards may allow up to 5 years; award size not specified in announcement.
Summary: Supports precursor science investigations to advance the Habitable Worlds Observatory mission goals through NASA's ROSES-2025 Astrophysics program.
Key Information: Mandatory Notice of Intent required; research security training required for PIs and key personnel starting August 5, 2026.
Description
This program element under NASA's Research Opportunities in Space and Earth Sciences (ROSES-2025) solicits proposals for precursor science investigations that will inform and advance the Habitable Worlds Observatory (HWO) mission. The focus is on supporting research that prepares the scientific and technical groundwork for HWO, a flagship mission concept aimed at directly detecting and characterizing potentially habitable exoplanets and their environments. Proposals should address key scientific questions, data analysis, modeling, or technology development relevant to the HWO mission objectives.
