Editor: Mark V. Sykes
Co-Editors: Matthew R Perry, Alex Morgan
Email: pen_editor@psi.edu
Twitter: @pen2tweets

o-------------------------TABLE OF CONTENTS---------------------------o

1. [PETITION] Conditions for Attending LPSC 2026
2. AAS DPS PCCS Statement on Mental Health
3. [GSA 2025] Session T40: Planetary Geochronology and
   Thermochronology
4. [GSA 2025] Session T188: Geomorphology and Surface Processes Across
   the Solar System
5. Program and Registration: Progress in Understanding the Pluto
   System - 10 Years After Flyby
6. South Pole-Aitken Basin Focus Issue in Planetary Science Journal
7. Postdoc Opportunity at Washington University
8. [AGU 2025] Session P006: Close Encounters in the Earth-Moon
   System - Apophis, 2024 Yr4, and the Future of Planetary Defense
9. [AGU 2025] Session P020: Ices and Volatiles on Solid Bodies
   - Implications for Planetary Evolution and In Situ Resources
10. Planetary Meeting Calendar Additions
11. Planetary Science Journal - New Papers
12. Journal of Geophysical Research: Planets - New Papers

o---------------------------------------------------------------------o

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PETITION: CONDITIONS FOR ATTENDING LPSC 2026

Concerned members of the community have penned and signed an open
letter to USRA/LPI and USRA outlining steps that we feel must be taken
before we will consider attending LPSC 2026. These steps include
restoring all purged abstracts (except those where NASA has
specifically directed or first authors have requested removal), and
committing to preserving academic freedom of speech at the conference.
You can find out more here, and add your name (anonymously if you wish)
at this link:

https://forms.gle/G1yAxZqmDujbVDHR7

This petition will be open until the end of July.


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AAS DPS PCCS STATEMENT ON MENTAL HEALTH

Significant cuts have been proposed for next year's NASA budget, and
the delay of the Research Opportunities in Space and Earth Sciences
(ROSES) 2025 call has created immense funding uncertainty for our
community of planetary scientists. Additionally, varied
interpretations of Presidential Executive Orders have resulted in
situations where certain types of work remain unfunded and/or
censored.

The present climate adds to the already high stresses of our vocation,
which often calls upon us to work long hours and commit to volunteer
efforts to advance our understanding of the Solar System. This
heightened stress comes about against a backdrop of broader societal
and political unrest and fears. As a result of these ongoing events,
many colleagues are understandably feeling anxious or stressed.

The AAS DPS Professional Climate and Culture Subcommittee (PCCS)
encourages everyone to take a moment, whenever possible, to acknowledge
that times are overwhelmingly difficult right now. We urge you to
consider ways to be extra kind to yourselves and to others. Pausing
when things feel difficult and overwhelming can put them into
perspective.  Many institutions offer mental health support services,
and we encourage you to utilize any resources you may need.


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[GSA 2025] SESSION T40: PLANETARY GEOCHRONOLOGY AND THERMOCHRONOLOGY

Please join in the fun by submitting an abstract for technical session
T40 at the National Geological Society of America meeting Connects
2025, which will be held in San Antonio, TX 19-22 October, 2025. The
full title is "Planetary Geochronology and Thermochronology: How
Lessons Learned from Earth Samples, Meteorites, and Returned Samples
Inform Future Research".

Although there have been many important advances in geo- and
thermochronology made by both "non-planetary" and "planetary"
researchers, workers in these fields have not necessarily adopted the
complimentary or improved methodologies developed by the other group.
This is especially true when it comes to robust interpretations of the
geologic significance of isotopic dates, a complex topic that has
become a primary focus of many "non-planetary" researchers. At the same
time, planetary researchers must deal with more extreme sample
availability limitations and more limited constraints on assumptions
needed for data corrections.

In this session, we hope to involve both "planetary" and
"non-planetary" researchers to explore the similarities and differences
in their analytical and interpretive approaches. Ultimately, we want to
inspire a common way forward in planetary geochronology and
thermochronology.

Contact Kip Hodges (kvhodges@asu.edu) or Blair Schoene
(bschoene@princeton.edu) for further details.


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[GSA 2025] SESSION T188: GEOMORPHOLOGY AND SURFACE PROCESSES ACROSS THE
SOLAR SYSTEM

If you plan on attending the 2025 Geological Society of America
Connects Meeting in San Antonio, Texas (October 19-22, 2025), we
encourage you to consider submitting an abstract to session T188,
"Geomorphology and Surface Processes Across the Solar System". This
session welcomes abstracts on any aspect of planetary geomorphology and
surface processes, including but not restricted to: Earth analogues,
laboratory experiments, numerical models, planetary comparison,
mapping, in situ data, or remote sensing studies.

This session fits well with one of the three key themes for the GSA
meeting: "From Earth to the Cosmos: Geoscience Beyond Our Planet". We
are also excited to have two excellent invited talks from Maddy Turner
(U. Chicago) and Tian Dong (UT Rio Grande Valley).

The abstract portal is open and can be accessed here:

https://gsameetings.secure-platform.com/connects25

The deadline for submitting abstracts is August 5, 2025.

Thanks, and we hope to see some of y'all in San Antonio! Take care.

Session Conveners: Tim Goudge (UT Austin), Alex Morgan (PSI), Marisa
Palucis (Dartmouth), Abdallah Zaki (UT Austin), and Ben Cardenas (Penn
State)


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PROGRAM AND REGISTRATION: PROGRESS IN UNDERSTANDING THE PLUTO SYSTEM
- 10 YEARS AFTER FLYBY

The Progress in Understanding the Pluto System: 10 Years After Flyby
meeting is scheduled for July 14-18, 2025, at the Johns Hopkins
University Applied Physics Laboratory (JHU APL), in Laurel, Maryland,
with virtual participation available:

https://www.hou.usra.edu/meetings/plutosystem2025

Detailed information about the program is available by viewing the
program and abstracts. Authors should review the author index for
abstracts accepted for presentation to see where they have been
scheduled. If authors' names in the index need to be updated, email
meetinginfo@hou.usra.edu. Authors should also review all presenter
information for oral and/or poster presentations.

Registration is open on the relevant page at the meeting website.
Before the meeting, all registrants will receive an email from
Houston Meeting Info with virtual connection information.

Optional events are available for meeting attendees.


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SOUTH POLE-AITKEN BASIN FOCUS ISSUE IN PLANETARY SCIENCE JOURNAL

We are organizing a focus issue in the Planetary Science Journal (PSJ)
and soliciting papers related to South Pole - Aitken Basin (SPA)
science:

https://iopscience.iop.org/journal/2632-3338

SPA is central to a diverse range of outstanding questions in lunar
geologic history and to planetary science. These include the early
impact history of the inner Solar System, initial differentiation and
thermal evolution of the lunar interior, and the nature of the lunar
dichotomy.

The goal of this Focus Issue is to inspire and compile a diverse set
of new analyses of the basin, leveraging modern data and updated
analysis techniques. The collection of scientific work in this focus
issue will provide essential context for identifying and interpreting
SPA samples and will help to inform future sample return strategies.

Feel free to reach out to Jenny Whitten (whittenjl@si.edu) or Dan
Moriarty (daniel.p.moriarty@nasa.gov) (focus issue editors) with any
questions. PSJ Focus Issues accept and publish papers as they are
submitted and reviewed; there is no wait for one manuscript upon
another, and submissions are accepted at any time.


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POSTDOC OPPORTUNIYT AT WASHINGTON UNIVERSITY

I am reaching out to ask for your help identifying potential candidates
for a postdoctoral position in the Experimental Studies of Planetary
Materials group at Washington University in St. Louis:

https://espm.wustl.edu

Our lab investigates the rheology and physical properties of Earth and
planetary materials through laboratory experiments and microstructural
analysis. Broadly, we seek to understand the dynamics of Earth's
interior and other planetary bodies, with particular emphasis on the
processes that govern plate tectonics, lithosphere dynamics, mantle
convection, and deformation across multiple scales.

I am eager to work with scholars from a variety of backgrounds,
including those with limited experimental experience. This postdoc
would be a great opportunity for someone with a recent PhD in
planetary geology or planetary interiors, who would like to diversify
their skill set before entering the faculty job market.

Please feel free to share this opportunity with any students or
colleagues who may be interested.

Philip Skemer (pskemer@wustl.edu)


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[AGU 2025] SESSION P006: CLOSE ENCOUNTERS IN THE EARTH-MOON SYSTEM
- APOPHIS, 2024 YR4, AND THE FUTURE OF PLANETARY DEFENSE

On 27 January 2025, near-Earth asteroid (NEA) 2024 YR4 reached a record
Torino Scale impact rating of 3 before additional observations ruled
out an Earth impact in 2032. A >1% impact probability remains, though,
with the Moon. On 13 April 2029, (99942) Apophis will pass within
geosynchronous orbit, offering a once-in-7kyr opportunity for
investigations into Earth's gravitational influence on asteroid
properties and collaborative observations with ground and space assets,
including NASA's Apophis Explorer, ESA's RAMSES, and JAXA's DESTINY+.
These encounters highlight growing public interest in asteroid hazards
and scientific opportunities that will be amplified by next generation
asteroid surveys. This session invites abstracts focused on NEA
observations, modeling of dynamical or physical evolution, mission
concepts, and planetary defense applications. We especially welcome
interdisciplinary contributions that bridge science, engineering, and
policy to address the evolving landscape of planetary defense in the
context of increasing detection rates and upcoming close encounters.

Please submit your abstract here by Wednesday, 30 July 2025 at 23:59
EDT/03:59 UTC, to join us!

https://agu.confex.com/agu/agu25/prelim.cgi/Session/248431

Co-Convenors: Ron Ballouz, Ed Rivera-Valentin, Dawn Graninger,
Andy Rivkin


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[AGU 2025] SESSION P020: ICES AND VOLATILES ON SOLID BODIES
- IMPLICATIONS FOR PLANETARY EVOLUTION AND IN SITU RESOURCES

Ices and volatiles on and within solid-surface planetary bodies
represent a record of the processes that emplace and redistribute them
over geologic time. These materials also represent a potential resource
that may be used on human and robotic missions to sustain surface
activities and return human explorers and samples back to Earth. This
session focuses on the physical processes related to ice and volatiles
that affect the surfaces of solid bodies in our Solar System. We
welcome abstracts that describe relevant research involving spacecraft
remote-sensing observations, theoretical modeling, laboratory
experiments, planetary analog field work, and the potential for in situ
resource utilization on human and robotic missions.

To submit an abstract, please visit:

https://agu.confex.com/agu/agu25/prelim.cgi/Session/248626

Conveners: Than Putzig & Wendy Calvin


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PLANETARY MEETING CALENDAR ADDITIONS

Note: Many face-to-face meetings going forward will have online
components. Check their websites for details.

Posted at https://planetarynews.org/meetings.html

July 30-August 1, 2025
Mercury Exploration Assessment Group (MExAG) Annual Meeting
https://www.lpi.usra.edu/mexag/meetings/july2025/
Online

October 28-30, 2025
2025 Annual Meeting of the Lunar Exploration Analysis Group (LEAG)
https://www.hou.usra.edu/meetings/leag2025/
Laurel, MD

July 13-17, 2026
Debris Disk Connections Workshop
https://www.ast.cam.ac.uk/debris-disk-connections
Cambridge, United Kingdom

July 27-31, 2026
Discs on the Exe: From Protostellar Discs to Debris Discs and Planets
https://discsontheexe.org/
Exeter, United Kingdom


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PLANETARY SCIENCE JOURNAL - NEW PAPERS

Direct Links to Open Access Papers
Editor, Faith Vilas

https://psj.aas.org

Insights into the Lunar Imbrium Basin Mare Units by Characterizing
Their Regolith Property, Chronology, and Composition
Shuangshuang Wu et al. 2025 PSJ 6:141
https://doi.org/10.3847/PSJ/adda40

Potential Landing Sites: A Comprehensive Reconnaissance Assessment of
the Europa Clipper Trajectory
Jennifer E. C. Scully et al. 2025 PSJ 6:142
https://doi.org/10.3847/PSJ/add469

Formation and Evolution Simulations of Saturn, Including Composition
Gradients and Helium Immiscibility
Peter Bodenheimer et al. 2025 PSJ 6:143
https://doi.org/10.3847/PSJ/add0b0

On Error Estimates for Hapke Photometric Model Parameters from Disk-
integrated Phase Curves of Airless Planetary Bodies
Paul Helfenstein and Anne J. Verbiscer 2025 PSJ 6:144
https://doi.org/10.3847/PSJ/adcd5d


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JOURNAL OF GEOPHYSICAL RESEARCH: PLANETS - NEW PAPERS

Direct Links to Open Access (OA) Papers
Editor-in-Chief, Amanda Hendrix

https://agupubs.onlinelibrary.wiley.com/journal/21699100

Exploring Mercury's Tidal Stresses Through Time: Effects of Orbital
Eccentricity, Rotational Dynamics, and Their Implications for
Tectonics
Liliane M. L. Burkhard & Nicolas Thomas
https://doi.org/10.1029/2024JE008736

Evolution of Convective Stresses in Stagnant-Lid Planets
C. Grigne
https://doi.org/10.1029/2024JE008817


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