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XR SIG Seminar 5 December 2025

High-Resolution Hard X-ray Spectroscopy with Transition Edge Sensor Microcalorimeter Arrays Speaker Fabian Kislat (University of New Hampshire) Abstract Spectroscopy of X-ray and gamma-ray lines is one of the most powerful tools of high-energy astrophysics. Gamma-ray emission originating from decays of…

Dec 5, 2025
AAS Meeting 247 (Jan 2026)

The 247th AAS meeting (joint with the Historical Astronomy Division) will be held 4-8 January in Phoenix, Arizona at the Phoenix Convention Center. Join us in the exhibit hall at the NASA booth and attend the NASA sessions. Please ask…

Dec 4, 2025
GW SIG LISA Working Group Meeting 4 Dec 2025

LISA Working Group Meeting

Dec 4, 2025
NASA Postdoctoral Program Application Deadline Extended

The NASA Postdoctoral Program (NPP) November 2025 cycle application deadline has been extended to Friday 19 December 2025 at 6p Eastern (3p Pacific).

Dec 4, 2025
AAAC Meeting 11-12 Dec, 2025

The next meeting of the Astronomy and Astrophysics Advisory Committee will take place virtually on Thursday 11 December and Friday 12 December 2025, running from 9a to 5:30p Eastern (6a to 2:30p Pacific) on both days. 

Dec 4, 2025
ROSES-25: D.2 Astrophysics Data Analysis Due Dates

ROSES-2025 Amendment 26 announces the release of final text for this program element, which was previously TBD. Optional Notices of Intent (NOIs) are requested by 19 December 2025, while proposals are due by 30 January 2026.

Dec 4, 2025
PhysCOS Activities at AAS 247

PhysCOS is participating in several activities at the next Winter Meeting of the American Astronomical Society (AAS 247), taking place 4-8 January 2026 in Phoenix, AZ.

Dec 4, 2025
CMB SAG Meeting December 12, 2025

Cosmic Microwave Background Science Analysis Group Meeting

Dec 4, 2025
Habitable Worlds Observatory SIG Seminar, 3 Dec 2025

We would like to invite you to our next virtual seminar: Wednesday, December 3rd, at 10:00 am PT / 1:00 pm ET / 6:00 pm BST / 7:00 pm CET. This is an excellent opportunity to stay informed on the…

Dec 3, 2025
Welcome to the New PhysCOS Website!

Physics of the Cosmos has moved to a new website, as part of the NASA Science Mission Directorate domain. All of the current content from the old site has been moved over to the new platform, where we hope the…

Nov 25, 2025
Resetting ROSES Due Dates After the Government Shutdown

Now that NASA Science Mission Directorate (SMD) has returned to normal operations, we are working to reset the proposal deadlines for ROSES-25 programs that were impacted by the recent funding lapse. This includes both deadlines that were changed to “TBD”…

Nov 25, 2025
ROSES-25: D.3 NuSTAR General Observer Program Changes

The NuSTAR General Observer (GO) Program, Section 4 of D.3 Combined General Investigator General Observer Program, solicits proposals for basic research relevant to the NuSTAR mission. NuSTAR Cycle 12 will commence on or about 1 June 2026, and last for…

Nov 25, 2025
ROSES-25 Amendment 24: F.10 PRISM Changes

F.10 Payloads and Research Investigations on the Surface of the Moon (PRISM) solicits development and flight of a science-driven suite of instruments and supporting technology demonstration payloads tailored to complete scientific investigations at a lunar landing destination, that address the…

Nov 25, 2025
AXIS Community Science Book Available

We are pleased to announce that the Advanced X-ray Imaging Satellite (AXIS) Community Science Book is now available on arXiv.  This 600+ page volume represents our collective year-long effort as a team of 517 scientists from 19 countries and 28…

Nov 18, 2025
ROSES-25: F.9 Proposals Due 22 Jan 2026

F.9 The Citizen Science Seed Funding Program (CSSFP) aims to incubate citizen science projects as they are being conceived or during critical transitions, like the year when they are first launched or beta tested (i.e., when the first group of…

Nov 18, 2025
Joint PAG Meeting at AAS 247

PhysCOS is participating in a meeting of the joint program analysis groups (PAGs) – for PhysCOS (PhysPAG), Cosmic Origins (COPAG), and Exoplanet Exploration (ExoPAG) – at the 247th Meeting of the American Astronomical Society, taking place Sunday 4 January 2026,…

Nov 18, 2025
Seeking New Members for PhysPAG Executive Committee

Deadline Extended to 5 December 2025 The Astrophysics Division of NASA’s Science Mission Directorate is pleased to issue an open call for nominations, including self-nominations, to serve on the Executive Committee (EC) of NASA’s Physics of the Cosmos Program Analysis…

Nov 18, 2025
PhysPAG Meeting at AAS 247: Community Brainstorming

PhysCOS is organizing the annual  meeting of the PhysCOS Program Analysis Group (PhysPAG) at the next Winter Meeting of the American Astronomical Society (AAS 247), taking place on Sunday 4 January 2026, from 9a to 1p Mountain Time, focusing on…

Nov 18, 2025
X-Ray SIG Seminar 14 November 2025

Developing CCD Detectors for Future X-ray Astrophysics Missions Speaker Eric Miller, MIT Abstract Future strategic X-ray missions require detectors with an unprecedented combination of frame rate, spatial resolution, bandwidth, and spectral performance. I report on ongoing work led by MIT…

Nov 13, 2025
Cosmic Ray and Neutrino SIG Seminar 5 Nov 2025

Galactic Cosmic-Ray Nuclei Searches Time Topic Speaker 14:00 ‑ 14:05 Brief Introduction CRN SIG Co-Chairs 14:05 – 14:25 Recent Advances in Astrophysics of Cosmic Rays Igor Moskalenko (Stanford University) 14:25 – 14:45 Recreating on Earth: GCR Interactions with the Interstellar Medium Priya…

Nov 5, 2025
NSF Astronomy Grant Program Deadline 17 Nov 2025

While the continuing federal government shutdown has affected activities at funding agencies, many deadlines and processes continue to hold. In particular, relating to grant programs for the National Science Foundation (NSF)  Division of Astronomical Sciences (MPS/AST): Those who submitted Faculty…

Nov 3, 2025
ROSES-25: F.10 PRISM Step-1 Due Date TBD

NASA ROSES opportunity F.10 Payloads and Research Investigations on the Surface of the Moon (PRISM) solicits development and flight of a science-driven suite of instruments and supporting technology demonstration payloads tailored to complete scientific investigations at a lunar landing destination, that…

Nov 3, 2025
X-Ray SIG Seminar 31 October 2025

Exploring Cosmic Ecosystems with Next-Generation X-ray Missions Speaker John ZuHone, Center for Astrophysics | Harvard & Smithsonian Abstract Galaxies are the nodes connecting the various processes driving the evolution of cosmic ecosystems. Within them, stellar winds, supernovae, and supermassive black…

Oct 31, 2025
Fourth TDAMM Workshop

Advancing Community Observing Plans for Rapid Follow-Up of Explosive Transients Monday, October 27, 2025 Time Presentations Recordings Welcome 8:00 AM Registration 8:45 AM Raffaella Margutti, Michael Coughlin, Cori Fletcher Welcome & Logistics Workshop Overview & Goals [MP4] Program Updates 9:00 AM Justin Vandenbroucke IceCube [MP4] 9:18 AM…

Oct 27, 2025

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