Ka-Band Backward-Compatible Relay Network Extension

The Government amends Soliciftation 80MSFC26R006 with an Amendment 01 date of June 22, 2026. The Government’s responses to all industry

questions are hereby posted, along with a Change Log identifying all modifications made to the Final Solicitation Package Amendment 01 includes updates to Solicitation 80MSFC20R0006, to include: Attachment A.2, NEXUS SRD, Attachment B, NEXUS DPD, Attachment F, Payment Milestones and Acceptance Criteria, Attachment H, NEXUS TDRS Model Contract, and Attachment J,

Pricing Model. UPDATE 7: Primary

Contracting Officer changed to Jacquelyn Pletcher. UPDATE 6: Final Solicitation Release Question Submittal Window: Closes end of day June 9, 2026 Proposal Due Date: 10:00 a.m. Central Time, July 7, 2026 Update 6 constitutes the final solicitation release and supersedes all prior versions. This notice does not commit the Government to award, nor will the Government reimburse any costs incurred in preparing responses. NASA hereby releases the NextSTEP‑3 APPENDIX E: Network Extension for User Continuity and Sustainability (NEXUS) Backward‑Compatible Ka‑Band Relay Broad Agency Announcement (BAA), Solicitation 80MSFC26R0006. NAICS: 541715 Set‑Aside: None Foreign Participation: Not permitted NASA Clause 1852.215-84, Ombudsman, applies. Current Ombudsman information is available at https://www.hq.nasa.gov/office/procurement/regs/Procurement-Ombuds-Comp-Advocate-Listing.pdf. All

questions, comments, suggestions, or requests regarding the NEXUS TDRS‑BC acquisition must be submitted only to: Jennifer George Lead

Contracting Officer, NASA/MSFC/PS50 [email protected] This final solicitation includes a Service