High Energy Astrophysics Upcoming Dates & Deadlines

This page lists major upcoming deadlines for the submission of proposals to high-energy and general astrophysics programs and/or other missions which may be of interest to HEASARC users. Wherever possible, links are included to the appropriate web sites which have more details. Please send information concerning any dates/deadlines that are not currently included and/or corrections to antara.r.basu-zych "at" nasa.gov. For more information about these and related subjects, you might also want to check out:
(1) the NASA Science Directorate list of Research Opportunities, (2) the HEASARC list of Upcoming Meetings (including meetings in High Energy Astrophysics, Astronomy, and related WWW activities), (3) the HEASARC list of Previous AOs/NRAs for which the Accepted Targets and/or Proposals are Available, (4) the NASA list of Future, Current & Past Science Missions, (5) the NASA Launch Schedule, or (6) the HEASARC's Chronology of High-Energy Astrophysics and General Astronomy

Summary of Deadlines

2025 Feb 14 - 2025 May 1: ROSES-2024 Full (Step-2 or Phase-1) Proposals Deadlines

ONGOING ROSES-2024 Deadlines of Particular Relevance to the HEASARC and the High-Energy Astrophysics Community include:

Note: due to the delay in posting ROSES-2025, ongoing deadlines from ROSES-2024 are posted here:

Appendix  Program Element                       NOI/Step 1 Prop.   Step 2 Proposals
                                                      Due Date     Due Date
                                                      MM/DD/Year   MM/DD/Year

D.13      Astrophysics Pioneers                       02/14/2025*  04/03/2025  
D.15      LISA Preparatory Science                    02/07/2025*  03/20/2025


Appendix  Program Element                         Phase 1 Proposals via ARK/RPS

                                                        Due Date     
                                                        MM/DD/Year 

D.6       Fermi General Investigator - Cycle 18         03/05/2025
D.10      TESS General Investigator - Cycle 8           03/27/2025
D.17      XRISM General Observer - Cycle 2-Type 1       05/15/2025
          (Due 16:30p.m. ET via ARK/RPS)
D.17      XRISM General Observer - Cycle 2-Type 2       05/15/2025
          (Due 23:59p.m. ET via NSPIRES)

2025 April 1 - 2026 May 1: Upcoming ROSES-2025 Full (Step-2 or Phase-1) Proposals Deadlines

ROSES-2025 Deadlines of Particular Relevance to the HEASARC and the High-Energy Astrophysics Community include:

The ROSES 2025 has been delayed. We will post the ROSES 2025 dates here when available.

2024 October 11: Anticipated XMM-Newton AO-25 Proposal Deadline

Full Details of Deadlines

Questions concerning general ROSES and especially the Summary of Solicitation may be directed to the office of the SMD Deputy Associate Administrator for Research via sara "at" nasa.gov.

2025 Feb 14 - 2025 May 1: Continuing ROSES-2024 Full (Step-2 or Phase-1) Proposals Deadlines

ROSES-2024 Deadlines of Particular Relevance to the HEASARC and the High-Energy Astrophysics Community include:

Appendix  Program Element                       NOI/Step 1 Prop.   Step 2 Proposals
                                                      Due Date     Due Date
                                                      MM/DD/Year   MM/DD/Year

D.13      Astrophysics Pioneers                       02/14/2025*  04/03/2025  
D.15      LISA Preparatory Science                    02/07/2025*  03/20/2025


Appendix  Program Element                         Phase 1 Proposals via ARK/RPS

                                                        Due Date     
                                                        MM/DD/Year 

D.6       Fermi General Investigator - Cycle 18         03/05/2025
D.10      TESS General Investigator - Cycle 8           03/27/2025
D.17      XRISM General Observer - Cycle 2-Type 1       05/15/2025
          (Due 16:30p.m. ET via ARK/RPS)
D.17      XRISM General Observer - Cycle 2-Type 2       05/15/2025
          (Due 23:59p.m. ET via NSPIRES)

2025 April 1 - 2026 May 1: Upcoming ROSES-2025 Full (Step-2 or Phase-1) Proposals Deadlines

Deadlines of Particular Relevance to the HEASARC and the High-Energy Astrophysics Community include:

The ROSES 2025 has been delayed. We will post the dates here when available.

Advance notice of upcoming deadlines for NASA Research Announcements and Announcements of Opportunity can be found by going to this NASA Research Opportunities Online Future Solicitations webpage.

2025 October 10, 12:00 UT: Anticipated XMM-Newton AO-25 Call for Proposals (CfP) Deadline

The planned key milestones for the eighteenth XMM-Newton "Announcement of Opportunity" have been established. Within this AO-25, a new call to submit proposals for observations to be performed with the XMM-Newton observatory will be issued.

To be prepared for this, please find below the anticipated timeline:

Announcement of Opportunity ..............  19 August  2025
Due date for Proposals ...................  10 October  2025 (12:00 UT)
Final OTAC approved programme ............  mid December 2025

For approved proposals only:

Start of Phase II proposal submission .... 13 January  2026
Closure of Phase II proposal submission .. 30 January 2026
Start of observations .................... May 2026

The official "Announcement of Opportunity" will be made public in the XMM-Newton News and on the XMM-Newton Science Operations Centre Home Page. Check at this link.

Page Author: Antara R. Basu-Zych (antara.r.basu-zych 'at' nasa.gov) (301) 286-1155

Last modified: Monday, 10-Mar-2025 15:33:15 EDT

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High Energy Astrophysics Upcoming Dates & Deadlines

Summary of Deadlines

Full Details of Deadlines

The ROSES 2025 has been delayed. We will post the dates here when available.

2025 October 10, 12:00 UT: Anticipated XMM-Newton AO-25 Call for Proposals (CfP) Deadline