Nov 4, 2021

Amendment 42: C.17 Planetary Major Equipment and Facilities changing to Planetary Science Enabling Facilities Program.

Program element C.17 of ROSES 2021 is being changed from "Planetary Major Equipment and Facilities" to the "Planetary Science Enabling Facilities (PSEF) Program". The Planetary Science Enabling Facilities Program Element is expected to solicit proposals as part of ROSES 2021 for facilities and associated equipment to enable planetary science research. This is only for facility instruments. Non-facility instruments or equipment are not eligible for this new call. However, guidance on how to request non-facility instruments or equipment costing greater than or equal to $50,000, either as part of a new proposal or in support of existing awards will be added to C.1 The Planetary Science Research Program Overview at the time that the text of PSEF is released.

ROSES-2021 Amendment 42 announces that C.17 is changing from the Planetary Major Equipment and Facilities to the Planetary Science Enabling Facilities (PSEF) Program. For now the due dates will appear as "TBD" in Table 2 and Table 3 of ROSES-2021.

On or about November 4, 2021, this Amendment to the NASA Research Announcement "Research Opportunities in Space and Earth Sciences (ROSES) 2021" (NNH21ZDA001N) will be posted on the NASA research opportunity homepage at

Questions concerning C.17 PSEF may be directed to Aaron Burton at