Network Extension for User Continuity and Sustainability (NEXUS) Ka-Band…

UPDATE 13 : The Government notes that there are (2) administrative errors on the export-controlled Attachment A.2, NEXUS Service Requirements Document (SRD), as posted with the Amendment 01 update. These errors are on Page 11 for both CS-8 and CS-9 requirements.  The sub-bullet under the first main bullet for both requirements referenced on this page has a written number that is inconsistent with the number of links in the first main bullet. Please note that the first main bullet for each requirement, and not the first sub bullets for each requirement, contains the correct number of links. The Government does not intend to post a revision of this document prior to the current proposal due date.  ---------------------------------------------------------------------------------------- UPDATE 12 : The Government amends Solicitation 80MSFC26R0006 with an Amendment 05 date of July 16, 2026. The posted Change Log located within Amendment 05 includes all changes to the Final Solicitation Package.  Amendment 05 includes administrative updates to the CLIN Descriptions seen in Attachment J. --------------------------------------------------------------------------------------- UPDATE 11 : The Government amends Solicitation 80MSFC26R0006 with an Amendment 04 date of July 13, 2026. The posted Change Log located within Amendment 04 includes all changes to the Final Solicitation Package.  Amendment 04 includes a Proposal Submittal due date extension from July 21, 2026 to August 04, 2026. ---------------------------------------------------------------------------------------- UPDATE 10 : The Government amends Solicitation 80MSFC26R0006 with an Amendment 03 date of July 06, 2026. The posted Change Log located within Amendment 03 includes all changes to the Final Solicitation Package.  Amendment 03 includes: 1. A Proposal Submittal due date extension from July 10, 2026 to July 21, 2026. 2. A revised Entities Excluded from Participation listing ------------------------------------------------------------------------------------------------------- UPDATE 9 : The Government amends Solicitation 80MSFC26R0006 with an Amendment 02 date of June 29, 2026. The posted Change Log located within Amendment 02 includes all changes to the Final Solicitation Package.  Amendment 02 includes: 1) The Government's responses to questions received in response to Amendment 01.  2) A Proposal Submittal due date extension from July 7, 2026 to July 10, 2026.  3) An updated BOX link for proposal submittals. --------------------------------------------------------------------------------------------------- UPDATE 8 : The Government amends Solicitation 80MSFC26R0006 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 MSFC-NEXUS@mail.nasa.gov This final solicitation includes a Service Requirements Document (SRD) which contains ITAR-controlled technical data. The clause at NFS 1852.225-70 (Export Licenses) has been incorporated. Therefore, access to these materials is restricted to contractors with valid ITAR/EAR export clearance per NASA export-control proc