Contract
2026 Astrophysics Small Explorer (APSMEX)
- Agency
- NATIONAL AERONAUTICS AND SPACE ADMINISTRATION / NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
- Location
- WASHINGTON, DC
- Amount
- Amount not listed
- Deadline
- Closes in 53 days (Sep 9, 2026)
- Posted
- Jun 9, 2026
- Set-aside
- None (open competition)
- NAICS code
- 54171
What this contract is for
On or after this SAM.gov notice, the final text for the Announcement of Opportunity (AO) 2026 Astrophysics Small Explorer (APSMEX) will be available for download from the NASA Solicitation and Proposal Integrated Review and Evaluation System (NSPIRES) at https://nspires.nasaprs.com. Click on the word “Solicitations” at the top of the NSPIRES landing page and then on the next page enter the number “NNH26ZDA011O” in the search box or use the direct URL provided below. This “Description” is not a complete or verbatim summary of the AO. It is the responsibility interested parties to visit and monitor regularly the two listed internet sites (links) for any amendments or other updates. Please also open and carefully read the attached PDF file named “9JuneEmail.pdf”. The 9JuneEmail attachment is copy of the text that NSPIRES sent to Science Mission Directorate (SMD) List Serv subscribers and includes other and earlier, important dates such as for the submission of a MANDATORY Notice of Intent (NOI) and a virtual Preproposal conference that are prior to the listed Date Offers Due. After reading the full AO on NSPIRES, please address any comments and questions only via email to both the primary and alternative points of contact listed and use " APSMEX26” in the subject line.
View the official listing on SAM.gov
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How to bid on this
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- Read the full solicitation on the official listing above, especially the scope of work, not just this summary. Our guide to reading a solicitation walks through what to look for.
- This listing has no set-aside restriction ("full and open competition"), meaning any business, large or small, can bid.
- Submit your proposal by the deadline, using the exact submission method the official listing states. A technically on-time bid sent the wrong way is often treated as late.
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