Network Extension for User Continuity and Sustainability (NEXUS) Ka-Band Backward-Compatible Relay Broad Agency Announcement (BAA) NextSTEP-3 Appendix E - Final Solicitation
NASA is seeking industry proposals for the NEXUS project, a phased, competitive R&D acquisition to develop an end-to-end Ka-band relay service that is backward compatible with legacy TDRSS users for a minimum of 15 years, addressing continuity risk in the 2029-2031 timeframe. The acquisition is structured in phases, with multiple initial Firm-Fixed-Price awards anticipated, and performance locations are not specified in the description. No budget amounts are provided in the description. The final solicitation release is anticipated between May 29 and June 8, 2026, with proposals due between June 26 and July 7, 2026. Foreign participation is not permitted, and access to the ITAR-controlled Service Requirements Document requires verified export clearance.