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 Submission)
Funding Amounts: Typical award period is three years; some programs allow up to five years. Award size varies by proposal and available funds.
Summary: Supports precursor science investigations to advance the objectives of the Habitable Worlds Observatory mission within NASA’s Astrophysics Division.
Key Information: Mandatory NOI required; research security training is mandatory for PIs and key personnel as of August 5, 2026.
Description
This opportunity, under NASA’s annual Research Opportunities in Space and Earth Sciences (ROSES) – 2025 solicitation, seeks proposals for precursor science investigations that support the Habitable Worlds Observatory (HWO) mission. The program is administered by the Science Mission Directorate’s Astrophysics Division and aims to fund research that will help define, enable, or enhance the scientific goals and requirements of the future HWO. Proposals should address key questions in exoplanet science, astrophysics, and relevant enabling technologies or methodologies that will inform the design and objectives of the HWO.
This element has unique requirements and a 7-page limit for the Science/Technical/Management section. All submissions must include an Open Science and Data Management Plan.
