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Volume 20, Number 37
September 13, 2026

Editor: Matthew R Perry
Co-Editors: Alex Morgan, Mark V. Sykes
Email: pen_editor@psi.edu
X: @pen2tweets
Bluesky: @planetarynews.bsky.social

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

1. EPSP Graduate Student Mentorship Program
2. Reminder: HIREP Measurement Definition Team - Application Deadline
   September 14, 2026
3. Reminder: NASA IRTF Call for Proposals - Open until October 1 for
   Semester 2027A (February 1 - July 31)
4. Planetary Data Workshop
5. [DPS-58] Program and Registration
6. [DPS-58] Dependent Care Applications
7. [DPS-58] Conference Lodging
8. [DPS-58] Information for Exhibitors and Sponsors
9. SBAG Community Forum at DPS
10. DPS Seeks a new Secretary
11. DPS Seeks a new Education Subcommittee Chair
12. New Horizons Science Spotlight Webinar
13. Planetary Meeting Calendar Additions
14. Planetary Science Journal - New Papers
15. Journal of Geophysical Research: Planets - New Papers
16. Planetary Research - New Papers

Commercial/Fundraising Announcements:

C1. Commercial: STEREO 20th Anniversary - Planetarium Show
C2. Commercial: New Book - Planetary and Spaceflight Analogs

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

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EPSP GRADUATE STUDENT MENTORSHIP PROGRAM

Are you a new grad student studying earth and planetary surface
processes embarking on your advanced degree? Or are you nearing
graduation with valuable insights to pass on and looking for mentorship
experience? There's a place for you in the EPSP Student Mentorship
Program. To give or receive mentorship throughout the Fall 2026
semester, apply at:

https://forms.gle/6TVFWtKESQfwZhWK8

The application deadline is September 25, 2026. In this EPSP-sponsored
program, new grad students with at least one year of graduate school
remaining will receive guidance in a one-on-one discussion format from
experienced graduate students. Experienced graduate students with at
least two years of graduate school experience will have the opportunity
to lead three structured discussions with new grad students. Suggested
discussion materials and group training sessions will be provided to
the mentors with the hope that their personal experience will
supplement the discussion.

Events will begin in mid-October 2026 and will continue through January
2027. This is a great opportunity for both early and late-stage
graduate students to learn from one another and build connections
across age and experience. Apply today!


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REMINDER: HIREP MEASUREMENT DEFINITION TEAM - APPLICATION DEADLINE
SEPTEMBER 14, 2026

This is a friendly reminder that the High-Resolution Imager Replacement
(HIREP) Measurement Definition Team (MDT) application period will close
at 5pm PDT on Monday, September 14, 2026.

Interested parties must contact mep_imager_mdt@jpl.nasa.gov for
information on how to apply.

For more information, Please visit the HIREP MDT webpage:

https://science.nasa.gov/hirep_measurement_definition_team/


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REMINDER: NASA IRTF CALL FOR PROPOSALS - OPEN UNTIL OCTOBER 1 FOR
SEMESTER 2027A (FEBRUARY 1 - JULY 31)

For full information about proposing for time on IRTF, full details on
the instruments, exposure time calculators and all other information
needed for proposal preparation, visit:

https://irtfweb.ifa.hawaii.edu/observing/callforproposals/index.php

The IRTF web services are fully recovered from the impacts of the
recent extreme weather events and observatory operations have resumed.

IRTF offers a unique range of imaging capabilities with broad and
narrow band filters and spectroscopic observing capabilities covering
wavelengths from 0.5um to 20um and resolutions of 50 to 80,000.
Non-sidereal tracking of Solar System objects, including near-Earth
objects, is a particular strength.

Pre-observing training is offered for new observers and those
unfamiliar with the instruments. ToO interrupt and time critical
programs are supported. Observing is usually conducted remotely.
In-person observing is available.

Come and find the IRTF booth at the DPS meeting in Spokane!


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PLANETARY DATA WORKSHOP

The Planetary Data Workshop will take place from June 14-17, 2027 at
Cornell University in Ithaca, NY. The objectives are to increase
communication across elements of the Planetary Data Ecosystem, increase
reusability of technology and lessons-learned while decreasing
unnecessary duplication of effort, and to engage in a community-driven
process to assess the state of the ecosystem and user-community needs.

Applications for travel stipends for students and early career
professionals are open now. Registration and abstract submissions will
open soon.

Please find more information and submit an indication of interest at:

https://planetarydataworkshop.org/


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[DPS-58] PROGRAM AND REGISTRATION

The DPS-58 program is live online, showing the timing of oral and
poster sessions, talks and posters within sessions, splinter meetings
and workshops, and conference social and professional development
events. We can hardly wait to see you all in Spokane, WA, October
25-30, and are looking forward to a planetary science highlight of 2026

For more information, visit:

https://submissions.mirasmart.com/DPS58/Itinerary/EventsAAG.aspx

Late registration remains open at:

https://aas.org/meetings/dps58/registration


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[DPS-58] DEPENDENT CARE APPLICATIONS

The Division for Planetary Sciences (DPS) offers Susan Niebur Dependent
Care grants to support attendance at DPS-58 to be held 25-30 October
2026 in Spokane, Washington, U.S.A. These grants provide financial
assistance to qualifying members to facilitate their meeting attendance
by offsetting costs for childcare, elder care, spousal care, etc., at
the meeting location or at home during the DPS conference. Apply for a
dependent care grant here:

https://dps.aas.org/development/dps-dependent-care-grant-application/


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[DPS-58] CONFERENCE LODGING

Please consider arranging your hotel for DPS-58 at official conference
lodging. There is a block of rooms at government rates, and lodging is
connected to the conference venue - the Spokane Convention Center - via
a covered a walkway. The hotel features an onsite restaurant, and other
options are located nearby. Utilizing this lodging will cut both cost
to attend the conference and carbon footprint to attend the conference
by eliminating the need for car rental. Visit:

https://aas.org/meetings/dps58/accommodations


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[DPS-58] INFORMATION FOR EXHIBITORS AND SPONSORS

The Local Organizing Committee for DPS-58 is soliciting exhibitors and
sponsors for the meeting. Exhibitor spaces are located in a heavily
trafficked are between the poster sessions and common area in a large
shared ballroom. If you are interested, please contact Rod Nenner
(rod.nenner@aas.org) at the American Astronomical Society.


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SBAG COMMUNITY FORUM AT DPS

The Small Bodies Assessment Group (SBAG) invites the small bodies
community to take part in a community forum at DPS. The forum will
feature a mix of short updates on mission status, observatories, and
recent workshops, along with open mic time for community discussion
about emerging issues, opportunities, and priorities. This is a chance
to hear what is happening across the field and help shape SBAG's
evolving role as an independent, community-driven forum. Participation
by Zoom is free; in-person attendance requires registration for the DPS
meeting. For more information, see:

https://smallbodiesassessmentgroup.github.io/SBAG-Website/meetings/


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DPS SEEKS A NEW SECRETARY

The DPS seeks a successor to Dr. Denise Stephens as DPS Secretary. If
this impactful position interests you, submit a letter of interest and
a CV to DPS Chair Scott Murchie at scott.murchie@jhuapl.edu or
DPS.chair@aas.org. As Secretary, you would be part of the Executive
Committee, helping to lead the division and formulate rapid responses
to planetary community events. Regular duties are to:

1. Compile and distribute eNews to DPS members;
2. Maintain DPS records and documents including the DPS Meeting Guide,
   instruction guides for subcommittees, official Committee and
   Subcommittee membership lists, letterhead, bylaws, and membership
   data;
3. Oversee membership applications and the membership roster;
4. Collected statements from candidates for elected DPS offices
   identified by the Nominating Subcommittee, circulate them, conduct
   the annual election, and announce the results;
5. Prepare prize certificates and citations; and
6. Contribute to the corporate memory of DPS along with other officers.


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DPS SEEKS A NEW EDUCATION SUBCOMMITTEE CHAIR

The DPS seeks a successor to Dr. Sanlyn Buxner as Chair of the DPS
Education Subcommittee. If you are interested please contact DPS Chair
Scott Murchie and submit a CV at DPS.chair@aas.org or
scott.murchie@jhuapl.edu. Regular duties are to:

1. Maintain the Education portion of the DPS website together with the
   DPS webmaster
2. Maintain the searchable database of Research Experiences for
   Undergraduate students in planetary science
3. Maintain the searchable database of graduate schools for planetary
   science
4. Intermittently, manages DPS Education and Outreach Grants - ($200 to
   $500) - awarded on rolling basis
5. Support education-related activities during DPS meetings in
   coordination with DPS leadership and other committees


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NEW HORIZONS SCIENCE SPOTLIGHT WEBINAR

Join us on 24 September 2026, 2:30-3pm EDT (11:30-12 PDT,12:30-1pm MDT,
1:30-2pm CDT)

New Horizons continues its operation, now at 65au from the Sun. Since
2015 it has made ground-breaking discoveries of the Pluto-Charon
system, flown past the small contact KBO binary Arrokoth and collected
phase and light curve data for some three-dozen additional KBOs and the
ice giants. It has also been sampling dust density throughout the Solar
System and studying the cosmic optical background. Please join us for
our spotlight webinar this week (30 min, fourth week each month), or
watch recorded at your convenience.

Our speaker will be Ishan Mishra (Caltech) and he will be speaking on:
"Investigating the extent of bladed terrain on Pluto via photometric
surface roughness"

Connection Link:

https://tinyurl.com/yx4awz59

Meeting ID: 973 1769 7636
Passcode: ExtendedKB

Calendar for future seminars:

https://tinyurl.com/52rsd327

Recordings are archived and posted at:

https://pluto.jhuapl.edu/News-Center/index.php#Spotlight-Presentations

For questions, contact New Horizons CoI Susan Benecchi, susank@psi.edu


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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

November 10-13, 2026
ngVLA International Science Conference 2026
https://ngvla.nao.ac.jp/ngVLA_Sendai
Sendai, Japan

March 16-18, 2027
Young Planets in Urbs Vetus: Detection, Characterisation, and Evolution
at the Dawn of Comparative Demographics
https://indico.ict.inaf.it/event/3626
Orvieto, Italy
June 14-17, 2027

Planetary Data Workshop
https://planetarydataworkshop.org/
Ithaca, NY


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PLANETARY SCIENCE JOURNAL - NEW PAPERS

Direct Links to Open Access Papers

Editor, Brian Jackson
https://psj.aas.org

Coma Volatile Composition and Thermal Physics in Comet C/2022 E3 (ZTF)
Measured near Closest Approach to Earth with NASA-IRTF
Nathan X. Roth et al. 2026 PSJ 7:209
https://doi.org/10.3847/PSJ/ae91ed

Callisto from JWST: CO2-rich Terrain on the Leading Hemisphere and
Global Patterns of H2O Ice
Maria Camarca et al. 2026 PSJ 7:210
https://doi.org/10.3847/PSJ/ae9608

Probing Ancient Biosignatures: Laser Mass Spectrometric Analysis of
the 3.33 Ga Josefsdal Chert Using Laboratory and Space-prototype
Instrumentation
Salome Gruchola et al. 2026 PSJ 7:211
https://doi.org/10.3847/PSJ/ae9839


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JOURNAL OF GEOPHYSICAL RESEARCH: PLANETS - NEW PAPERS

Direct Links to Open Access (OA) Papers

Editors-in-Chief, Amanda Hendrix & Debra Buczkowski
https://agupubs.onlinelibrary.wiley.com/journal/21699100

Intra-Tessera Plains: Implications of Their Radar Properties for
Surface Processes on Venus
E. N. Haas & J. L. Whitten
https://doi.org/10.1029/2025JE009147

Ferric Chloride: The Venusian Unknown UV Absorber?
Joanna V. Egan et al.
https://doi.org/10.1029/2025JE009634

Neutron Diffraction Evidence for Stress-Induced Melting of Ice During
Deformation of D2O-Ice Ih-Fluorite Mixtures
Ceri A. Middleton et al.
https://doi.org/10.1029/2026JE009877

Variation of Venusian Gravity Wave Absolute Momentum Fluxes and Drag as
Retrieved From the Akatsuki Mission
Erdal Yigit & Emilia Sloan
https://doi.org/10.1029/2026JE009719

Brine Entrainment During Ice Shell Growth on Icy Worlds
Nina Gilkyson et al.
https://doi.org/10.1029/2026JE009749

Formation and Alteration of Magnesite Nodules From Kunwarara,
Queensland, Australia, as an Analog to Mg-Carbonate Formation on Mars
E. L. Cardarelli et al.
https://doi.org/10.1029/2026JE009660

The Role of Chlorate-Driven Oxidative Weathering in Shaping Clay
Deposits on Mars
Jiawei Wang & Nicole M. Fernandez
https://doi.org/10.1029/2025JE009493


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PLANETARY RESEARCH - NEW PAPERS

Direct Links to Diamond Open Access Papers

Editor-in-Chief, Mark A. Wieczorek
https://planetary-research.org

Elastic-plastic flexure and heat flux on icy moons
A. Broquet
https://doi.org/10.53480/d2r6-gh41


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COMMERCIAL: STEREO 20TH ANNIVERSARY - PLANETARIUM SHOW

To help celebrate the NASA STEREO mission's 20th anniversary this fall,
we invite your planetarium or IMAX theater to feature the film Solar
Storms (previously 3D Sun). Narrated by Al Roker, the film takes
audiences on a spectacular journey from the Sun's fiery surface to
Earth's brilliant auroras.

The film is available at a moderate cost in these formats:
- Standard Digital Cinema (2D or 3D DCP)
- IMAX Systems (2D DCP)
- Fulldome (2D mono) - custom re-rendered by Sky-Skan

To thank you for hosting, we are excited to offer:
- A virtual or in-person Q&A with a STEREO expert, such as Dr. Terry
  Kucera or Dr. Lika Guhathakurta.
- Complimentary STEREO posters and 3D glasses for your audience.

Please let Carolyn.y.ng@nasa.gov and me know your thoughts on
scheduling and next steps. Thank you!


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COMMERCIAL: NEW BOOK - PLANETARY AND SPACEFLIGHT ANALOGS

The lunar, planetary, and spaceflight analog book, "How to Vacation in
Space Without Leaving Earth: Real Places You Can Visit to Experience
Outer Space on Earth" is now available for pre-order. The book attempts
to reach non-expert space enthusiasts with a touch of (dad) humor,
offering ways to encounter space in their everyday travels.

The geological and spaceflight content is also appropriate for
introductory classes. It can be found on Amazon and the Publisher's sites:

https://tinyurl.com/7aeve2p3

https://tinyurl.com/4w96v8ns


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