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National Aeronautics and Space Administration

ROSES25: D.8 Habitable Worlds Observatory Precursor Science Investigation

Funds early science work preparing for NASA's proposed Habitable Worlds Observatory, gated by a mandatory notice of intent.

OpenNational Aeronautics and Space AdministrationUnited States

NASA's next flagship space-telescope concept, the Habitable Worlds Observatory, is still years from launch. This element funds the science groundwork that needs to happen now, so the mission is ready to deliver once it flies.

A notice of intent is mandatory ahead of the full proposal, and NASA's page-limit and content rules for this element differ in several ways from the defaults set for the res…

Precursor science preparing for NASA's proposed Habitable Worlds Observatory mission, gated by a mandatory notice of intent ahead of the full proposal; NASA's own notice sets process and page limits rather than naming the specific research questions in scope.

CycleiHow often this grant runs β€” e.g. annually, on a rolling basis, or a one-off call.No fixed schedule
Next deadlineiThe next date applications are due. Rolling means you can apply any time.26 Oct 2026
Decision timeiTypical time from the deadline to the funder's decision.β€”
Project durationiHow long the funded work is expected to run.β€”
Award typeiThe form of funding β€” grant, equity, loan, tax credit, etc.Cooperative agreement
Match fundingiThe share of project costs you must cover yourself. 0% = fully funded.β€”
Funding pooliThe total budget available across all awards in this round.β€”

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Last verified: 25 Aug 2026Funder reference: NNH25ZDA001N-HWOPSISource: www.grants.gov