2026 Astrophysics Small Explorer (APSMEX)
National Aeronautics and Space Administration · NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
- Response deadline
- Sep 8, 2026, 8:00 PM EDT
- Posted
- Jun 8, 2026
- Solicitation
- NNH26ZDA011O
- Set-aside
- None listed
- Place of performance
- —
- Contracting office
- NASA HEADQUARTERS · WASHINGTON · DC
- Source
- SAM.gov · updated Jun 9, 2026
Description
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.
What similar awards have paid
Real federal awards already on the books in a similar lane — so you can size the opportunity, not guess. This is public history, not a bid price, cost estimate, or prediction that you will win.
Not enough similar awards to show a range yet
Fewer than five matching public awards are in our index for this lane — not enough to show a fair range.
We looked for: Same industry code (54171) · Same product/service code (AR11) · Prime contracts (not umbrella IDVs)
Intelligence only — not legal advice or a guarantee of award. Always verify requirements on the official SAM.gov notice. Past award amounts are public history, not a suggested bid or prediction. Notice ID 46b128b9b9d44af9ad839c4fd2fb4cff.