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ROSES-25: D.9 HWO-ICA: Correction Regarding Collaborators

30 September 2026

Proposals Due 14 October

The ROSES-25 program element D. 9 Habitable Worlds Observatory Instrument Concept Assessments (HWO-ICA) solicits proposals to support maturation of the HWO mission concept. The objective of HWO-ICA is to expand and deepen exploration of the HWO instrument trade space by developing and/or analyzing innovative instrument concepts and their scientific opportunity and performance, engineering feasibility and footprint, technology maturity and gaps, and associated risks.

ROSES-2025 Amendment 73 makes a correction to Section 3.3.2 of D.9 HWO-ICA regarding collaborators on Category 2 proposals. New text is in bold. The due date remains unchanged: Proposals are due by 14 October 2026.

Also, the FAQ (posted under other documents on the NSPIRES page for this program element) has been updated.

Please direct questions concerning D.9 HWO-ICA to Megan Ansdell at Megan.C.Ansdell@nasa.gov.

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