Keck Mission and Technology Proposals Deferred
10 September 2025
Keck Strategic Mission and HWO Technology Proposals Deferred
The Keck Strategic Mission Support and HWO Technology proposals have been deferred to late 2026.
Due to several issues, including the six-week closure of the Keck II telescope and instrument calibration problems with the Keck Planet Finder, it has not been possible for the existing suite of Keck Strategic Mission Support programs (KSMS) and the Habitable Worlds Observatory (HWO) Technology Maturation Program to complete their observations.
Keck Observatory about Keck Strategic Mission and HWO Technology Proposals Deferred
Accordingly, with the concurrence of NASA Headquarters and the HWO project, NExScI is announcing the deferral of the solicitation for new KSMS and HWO Technology proposals from Semester 2026A to Semester 2026B (beginning 1 August 2026). This delay will allow the existing projects to receive the additional telescope time needed to complete their programs.
We apologize for this delay and look forward to releasing new solicitations for KSMS and HWO Technology programs for Semester 2026B. The NASA Keck Call for Proposals has been modified accordingly.
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