The purpose of this SAM.gov amendment is to reactivate SAM.gov notice NNH22ZDA008L and announce a second Astrophysics Probe Community Announcement.  Open and carefully read the attached updated summary PDF file entitled “NNH22ZDA008LSynopsis2.pdf.”

On or after the publication date of this SAM.gov special notice the full, final text for a Community Announcement entitled – “Astrophysics Probe Announcement of Opportunity” will be available for download from the link below. This Science Mission Directorate’s Community Announcement does not constitute a commitment, implied or otherwise, that the National Aeronautics and Space Administration (NASA) will take action in this matter.

Open and carefully read the attached PDF file entitled “NNH22ZDA008LSynopsis.”  The attached file is a copy of an email summary to be sent via the NASA Solicitation and Proposal Integrated Review and Evaluation System (NSPIRES) to Science Mission Directorate List Serv subscribers.  After reading the full announcement by email only address questions (or other comments) with a subject line to read "Astrophysics Probe" to the listed primary point of contact.