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NextSTEP K: Commercial Destination Development in Low-Earth Orbit (LEO) Free Flyer

Solicitation Number: NNH16ZCQ001K-Appendix K-CDFF

Editor’s Note: On March 23, 2021, NASA announced its updated acquisition plan to ensure continuous human presence in low-Earth orbit through the Commercial LEO Destinations (CLD) project. NASA is no longer pursing NextSTEP Appendix K.

November 25, 2019 – Questions Received and Answered

November 8, 2019 – Industry Day

October 24, 2019 – Page Updated with Industry Day Information

October 4, 2019 Draft Solicitation and Attachments Posted

July 16, 2019 – Synopsis Issued


After further review, NASA will no longer pursue the development of independent commercial low-Earth orbit destinations through Appendix K of the Next Space Technologies for Exploration Partnerships (NextSTEP-2) Broad Agency Announcement (BAA) entitled “Appendix K: Commercial Destination Development in Low-Earth Orbit (LEO) Free Flyer.” Instead, NASA plans to announce a competition for Funded Space Act Agreements to support the formulation and design of Commercial LEO Destinations. For more information, please see

Learn more about NASA’s NextSTEP public-private partnership model that seeks to stimulate the commercial space industry and help the agency explore deep space for the benefit of all.