Amendment 73: D.9 Habitable Worlds Observatory Instrument Concept Assessments: Correction regarding collaborators on category 2 proposals
Habitable Worlds Observatory (HWO) Instrument Concept Assessments (HWO-ICA) program element D.9 of ROSES-25, 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 Habitable Worlds Observatory Instrument Concept Assessments (HWO-ICA) regarding collaborators on category 2 proposals. New text is in bold. The due date remains unchanged: Proposals are due by October 14, 2026.
Also, the FAQ (posted under other documents on NSPIRES page for this program element) has been updated. NASA will accept questions up until September 18, 2026. Questions concerning D.8 HWO-ICA may be directed to Megan Ansdell at Megan.C.Ansdell@nasa.gov.
