Earth Science Earth System Explorers Announcement of Opportunity Community Announcement

This notice has been reactivated and amended to add the second community announcement entitled “Earth System Explorers” (ESE) Announcement of Opportunity (AO). Before sending comments or questions to the listed point of contact, please download and carefully read the full text of the PDF file that has this file name “NNH22ZDA002LESESE2.pdf.” This special notice releases a Community Announcement entitled “Earth Science Earth System Explorers” Announcement of Opportunity Community Announcement” (ESESE). The issuance of this announcement does not obligate NASA to issue an Announcement of Opportunity (AO). Any costs incurred are incurred completely at the submitter's own risk. Open and carefully read the attached summary PDF file entitled “NNH22ZDA002LESESE.pdf.” The attached file is a copy of an email to be sent via the NASA Solicitation and Proposal Integrated Review and Evaluation System (NSPIRES), https://nspires.nasaprs.com , to Science Mission Directorate List Serv subscribers. It is necessary to download and carefully read the full text of the attached PDF file for important estimated dates that are not listed in this special notice. After reading the attachment, address questions (or other comments) with a subject line to read "ESESE AO Community Announcement" to the listed point of contact.