About Archives Submission Directions Meeting Calendar Subscribe


Volume 20, Number 14
April 5, 2026

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

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

1. Postdoctoral Position: MERTIS/BepiColombo Data Analysis and 
   Performance Monitoring
2. Space Environments Engineer Position With Amentum at NASA-MSFC
3. Origins2026 Abstract Deadline Extended 
4. [EPSC] Session TP12: Sediment Transport Processes in the Solar 
   System 
5. Mercury 2026 Meeting: Registration and Abstract Submissions Open
6. T-Minus 22 Days until The Next Generation of Io Science Workshop
7. LPI Webinar: Translating Your Planetary Science Skills
8. Artemis II Citizen Science
9. Planetary Geomorphology Image of the Month
10. PDS Geosciences Node Virtual Open House - April 21
11. [NASA[ PDS: OSIRIS-REx Derived Products
12. [NASA] PDS: OSIRIS-REx Altimetry Working Group Shape Model
13. [NASA] PDS: Aperiodic PDS Data Releases in 2026.03
14. [NASA] PDS: Odyssey Data Release 95
15. [NASA] PDS: Lucy L'LORRI Comet 3I/ATLAS Observations
16. [NASA] ROSES-25 Amendment 51: C.6 Development and Advancement of 
    Lunar Instrumentation Not Solicited in ROSES-25
17. Planetary Meeting Calendar Additions
18. Planetary Science Journal - New Papers
19. Journal of Geophysical Research: Planets - New Papers

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

1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1

POSTDOCTORAL POSITION: MERTIS/BEPICOLOMBO DATA ANALYSIS AND 
PERFORMANCE MONITORING

We are pleased to invite applications for a two-year postdoctoral 
research position at the German Aerospace Center (DLR) in Berlin, 
Germany, focusing on MERTIS/BepiColombo data analysis, performance 
monitoring and contribution to the global map of Mercury surface 
composition. For more details about the position and to apply, please 
use this link:

https://tinyurl.com/4p7cyfyf

Application deadline: May 3, 2026


2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2

SPACE ENVIRONMENTS ENGINEER POSITION WITH AMENTUM AT NASA-MSFC

This position will assist the Space Environments Team at the MSFC 
Natural Environments Branch through providing support to the space 
environments program leads. Specific support to be provided includes, 
but is not limited to, the following:

- Provide space environments expertise to programs and projects, 
  including consultation on space environments specifications and 
  updates.
- Perform oversight/insight activities to ensure subsystem and 
  spacecraft designs are implementing space environment program 
  requirements.
- Review delivered products to verify they sufficiently document the 
  environment definition and implementation in design, testing, and 
  analysis.
- Provide information and deliverables for key systems engineering 
  program/project milestones.
- Develop, prepare, and deliver technical programmatic briefings, as 
  requested.
- Coordinate with space environments subject matter experts for 
  technical support, analysis, product reviews, and environments 
  development.
- Report to program leadership on technical milestones and 
  accomplishments on a regularly approved basis.
- Evaluate risk implications and communicate risk at the program level.
- Assist in the book management of the Design Specification for 
  Natural Environments.
- Analyzing space environment parameters with respect to program needs.

Additional details and application link can be found at:

https://tinyurl.com/vv8y3tct


3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3

ORIGINS2026 ABSTRACT DEADLINE EXTENDED

The abstract submission deadline for Origins2026 (Paris, July 5-10, 
2026) has been extended to April 6, 11:59 PM (Paris time). Details 
about the conference, abstract submission, and registration can be 
found at:

https://originsparis.sciencesconf.org/
 
Travel awards for early career researchers are available. 


4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4

[EPSC] SESSION TP12: SEDIMENT TRANSPORT PROCESSES IN THE SOLAR SYSTEM

6-11 September 2026 in The Hague, The Netherlands
	
The "Sediment Transport Processes in the Solar System" (TP12) session 
aims to bring together researchers from different disciplines to 
stimulate knowledge exchange based on the broad topic of sediment 
transport processes under varying planetary conditions, rather than 
one planetary environment.

Our session will provide a platform for cross-planetary discussion of 
the processes that erode, transport, and deposit sediments across 
planetary surfaces in the Solar System. Considered sediment transport 
processes include aeolian, fluvial, and mass wasting. We welcome 
contributions on Mars, Venus, Mercury, the Moon, Titan, icy satellites 
of the outer Solar System, comets, and/or asteroids, to submit to our 
session. 

Session details:

https://meetingorganizer.copernicus.org/EPSC2026/session/59230

Abstract instructions:

https://www.epsc2026.eu/programme/how-to-submit.html

The abstract deadline is the 13 May 2026 (13:00 CET).

Best wishes,

Giulia Magnarini, Lisanne Braat, Zack Dickeson, and Lonneke Roelofs
Sediment Transport Processes in the Solar System convenors 


5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5

MERCURY 2026 MEETING: REGISTRATION AND ABSTRACT SUBMISSIONS OPEN

All researchers and members of the planetary science community are 
invited to participate in Mercury 2026, the international meeting 
dedicated to the study of the planet Mercury. This year's edition will 
take place from 1-4 September 2026 at KU Leuven, Belgium. Mercury 2026 
will bring together scientists involved in observations, modeling, 
laboratory experiments, and mission data analysis related to Mercury. 
A particular focus will be placed on the latest developments and 
discoveries from ESA-JAXA's BepiColombo mission.

Registration for the meeting is now open, with early registration 
rates available prior to June 1, 2026. Abstracts are also now being 
accepted, with a deadline of June 30, 2026.

Visting the meeting website for more details:

https://ees.kuleuven.be/en/mercury2026


6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6

T-MINUS 22 DAYS UNTIL THE NEXT GENERATION OF IO SCIENCE WORKSHOP

Io is the most volcanically active world in the Solar System, yet 
fundamental questions persist regarding its origin, evolution, 
present-day activity, dynamic atmosphere, and its complex interactions 
with the rest of the Jovian system. Io's extreme activity makes it an 
important analog for understanding processes relevant to the early 
Earth and Moon, and other tidally heated bodies across the cosmos.

The Next Generation of Io Science Workshop will be held from 4/22/26 - 
4/23/26. The Workshop will be hybrid, with both in-person 
participation at the Applied Physics Laboratory (Laurel, MD) and 
online. Participation is free but required by 4/8/26.

The goal of this workshop is to bring together interdisciplinary 
scientists to discuss outstanding science questions about Io. We 
solicit participation from the broad community - whether you have 
worked on Io before or not!

More information: 

https://secwww.jhuapl.edu/EventLink/Event/610

Science organizing committee: James Keane, Laz Kestay, Fran Bagenal, 
Brett Denevi, Anton Ermakov, Ben Greenhagen, Katherine de Kleer, 
Alfred McEwen, Ryan Ogliore, and Scott Bolton


7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7

LPI WEBINAR: TRANSLATING YOUR PLANETARY SCIENCE SKILLS

April 7, 2026, 4 p.m. ET/ 3 p.m. CT/ 2 p.m. MT/ 1 p.m. PT

Planetary and astrobiology research requires a variety of physical 
science skills that can translate to other fields. Hear from our 
panelists about the ways that they have leveraged their experience 
with remote sensing skills, numerical modeling, geological mapping, 
geosciences, and so much more! To register, visit:

https://www.zoomgov.com/webinar/register/WN_pKGO1rznSuOfWqIznSUMrg


8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8

ARTEMIS II CITIZEN SCIENCE

During the Artemis II mission, the astronauts will be observing the 
darkened side of the Moon to look for impact flashes caused by 
meteoroids striking the surface and vapourising. We need you and your 
telescope to observe flashes simultaneously (Monday April 6 - Tuesday 
April 7), helping to avoid false positives from cosmic rays and 
allowing us to measure the relative sensitivity of the two observing 
methods. See the website for more details:

https://science.nasa.gov/citizen-science/

Email benjaminf@lanl.gov with any questions 


9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9

PLANETARY GEOMORPHOLOGY IMAGE OF THE MONTH

The April image of the month is now available on the IAG's Planetary 
Geomorphology web page:

https://planetarygeomorphology.wordpress.com

This month's topic is "Lake Stars as an Earth Analog for Europa's 
Manannan Crater Spider Feature", contributed by Dr. Lauren Mc Keown, 
Department of Physics, University of Central Florida

You can follow IAG Planetary Geomorphology Image of the Month on 
BlueSky: 

https://bsky.app/profile/planetarygeomorph.bsky.social

or Facebook:

https://www.facebook.com/PlanetaryGeomorphology
 
Best wishes,
Lonneke Roelofs (Chair, IAG Planetary Geomorphology working group)


10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10

PDS GEOSCIENCES NODE VIRTUAL OPEN HOUSE ON APRIL 21

The PDS Geosciences Node will host a virtual Open House on Tuesday, 
April 21, 2026 at 2:00 pm Central.

This event is open to all members of the planetary community and is an 
opportunity to hear an update from and ask questions of GEO Node 
personnel.
 
The Open House will start with a ~40-minute presentation covering an 
overview of the Geosciences Node, our tools and services, recent 
achievements, our transition of PDS GEO data to the cloud, and 
priorities for the year ahead. The presentation will be followed by a 
Q&A session.
 
Additional information and meeting connection details may be found 
here:

https://pds-geosciences.wustl.edu/openhouse/openhouse2026.htm
 
Optionally, you may indicate your interest and receive a meeting 
reminder via this link:

https://forms.cloud.microsoft/r/pmvxukzE4Q
 
We look forward to seeing you!
 
The PDS Geosciences Node (geosci@wunder.wustl.edu)


11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11

[NASA] PDS: OSIRIS-REX DERIVED PRODUCTS

The OSIRIS-REx Radio Science Working Group Derived Gravity Bundle v1.0 
contains a single data collection with gravity results derived from 
the raw radio science data and the particle trajectories, as well as 
ancillary products and an overview of the contents of the collection. 
The document collection contains copies of the two published papers 
presenting these results. This bundle can be found at:

https://arcnav.psi.edu/urn:nasa:pds:orex.derived_gravity

The OSIRIS-REx Derived Image Processing Bundle v1.0 contains surface 
characterization derived data products that quantify the spectral, 
albedo, and morphological properties of asteroid Bennu observed by the 
OSIRIS-REx OCAMS instrument. The data can be found at:

https://arcnav.psi.edu/urn:nasa:pds:orex.image_processing

The OSIRIS-REx Derived Astronomy Products Bundle contains Astrometry 
and Photometry derived data products that quantify the astrometric and 
photometric properties of asteroid Bennu. The data can be found at:

https://arcnav.psi.edu/urn:nasa:pds:orex.astronomy

Links to all OSIRIS-REx bundles are at:

https://pds.nasa.gov/datasearch/subscription-service/SS-20260326.shtml

To access all data archived in PDS:

https://pds.nasa.gov/


12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12

[NASA] PDS: OSIRIS-REX ALTIMETRY WORKING GROUP SHAPE MODEL

This is the release of the OSIRIS-REx Altimetry Working Group Shape 
Model bundle v1.0. his bundle collects the global and regional digital 
terrain models and associated spice data derived from the OSIRIS-REx 
Laser Altimeter (OLA) and Stereophotoclinometry (SPC) components. The 
data are available at:

https://arcnav.psi.edu/urn:nasa:pds:orex.altimetry

Links to all OSIRIS-REx bundles are at:

https://pds.nasa.gov/datasearch/subscription-service/SS-20260327.shtml

To access all data archived in PDS:

https://pds.nasa.gov/


13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13

[NASA] PDS: APERIODIC PDS DATA RELEASES IN 2026.03

In March 2026, PDS ingested and made available the following data,
none of which were regularly released with an ongoing mission:

- 2026.03.27 Pioneer Venus Orbiter Ultraviolet Spectrometer Attitude 
  data
- 2026.03.16 BepiColombo SPICE Release 10
- 2026.03.13 Psyche SPICE Release 3
- 2026.03.17 Mars Express OMEGA High-Level Products incl. Ice Cloud 
  Index
- 2026.03.11 New Horizons PEPSSI Jupiter Encounter Calibrated Data
- 2026.03.11 New Horizons PEPSSI Jupiter Encounter Raw Data
- 2026.03.11 New Horizons PEPSSI KEM1 Cruise Calibrated Data
- 2026.03.11 New Horizons PEPSSI KEM1 Cruise Raw Data
- 2026.03.11 New Horizons PEPSSI Post-Launch Calibrated Data
- 2026.03.11 New Horizons PEPSSI Post-Launch Raw Data
- 2026.03.11 New Horizons PEPSSI Pluto Cruise Calibrated Data
- 2026.03.11 New Horizons PEPSSI Pluto Cruise Raw Data
- 2026.03.11 Voyager 2 Neptune Low Energy Charged Particle Data Bundle
- 2026.03.10 CLPS SPICE Release 3

To access those data

https://pds.nasa.gov/datasearch/subscription-service/SS-20260331.shtml

To access all data archived in PDS:

https://pds.nasa.gov

 
14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14

[NASA] PDS: ODYSSEY DATA RELEASE 95

The NASA Planetary Data System announces Release 95 of data from the 
Mars Odyssey Orbiter. This release contains raw, calibrated, and 
derived data products nominally covering the time period July 1, 2025, 
through September 30, 2025, for the GRS/HEND/NS suite, and June 2, 
2025 through September 1, 2025, for THEMIS.

Since the previous Mars Odyssey release, one raw Radio Science data 
volume has been released, with data covering the period November 1, 
2025 to December 31, 2025.

GRS/HEND/NS and Radio Science data are archived at the PDS Geosciences 
Node, THEMIS data at the THEMIS Data Node, and SPICE data at the PDS 
NAIF Node. The data may be accessed from:

https://pds-geosciences.wustl.edu/missions/odyssey/

Or for a more dataset-oriented view:

https://pds.nasa.gov/datasearch/subscription-service/SS-20260401.shtml

Odyssey releases occur every three months. The next release is 
scheduled for July 1, 2026.

All available PDS data may be found at:

https://pds.nasa.gov/datasearch/data-search/

To access the latest PDS Data Releases, please visit the following 
link:

https://pds.nasa.gov/datasearch/subscription-service/SS-Release.shtml

For further information, see the PDS Home Page:

https://pds.nasa.gov/


15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15

[NASA] PDS: LUCY L'LORRI COMET 3I/ATLAS OBSERVATIONS

The NASA Planetary Data System's (PDS) Small Bodies Node (SBN) is 
pleased to announce the release of the interstellar comet 3I/ATLAS 
observations taken by the Lucy LOng Range Reconnaissance Imager 
(L'LORRI) instrument. This data was taken between 
2025-09-14T23:59:40.725Z and 2025-09-17T00:10:27.891Z and released to 
the public on April 1. For details, please see the main SBN webpage:

https://pdssbn.astro.umd.edu/


16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16

[NASA] ROSES-25 AMENDMENT 51: C.6 DEVELOPMENT AND ADVANCEMENT OF LUNAR 
INSTRUMENTATION NOT SOLICITED IN ROSES-25

When it is solicited, C.6 Development and Advancement of Lunar 
Instrumentation (DALI) supports the advanced development of 
instruments that show promise for use in future lunar missions 
including NASA's Artemis Program, lunar orbiters, lunar landers, and 
commercial ventures. The goal of the DALI program is to develop and 
demonstrate science instruments for lunar missions to the point where 
they may be proposed in response to future announcements of flight 
opportunities without additional extensive technology development. The 
DALI Program is intended to enable technology infusion into NASA lunar 
science missions to take place in a timely and efficient manner. As 
such, the technology readiness levels (TRLs) that DALI supports are 
TRL 4-6.

ROSES-2025 Amendment 51 announces that C.6 DALI which was TBD, will 
not be solicited in ROSES-2025. However, we anticipate that the 
content of this program will be solicited in ROSES-26.

Go to:

https://solicitation.nasaprs.com/ROSES2025

and will appear on SARA's ROSES blog at:

https://science.nasa.gov/researchers/solicitations/roses-2025/

Questions concerning C.6 DALI may be directed to Anna Maria Pal at 
hq-dali@mail.nasa.gov.


17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17

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

June 18-19, 2026
The Apophis T-3 Years: Knowledge Opportunities for the Science of 
Planetary Defense
https://www.hou.usra.edu/meetings/apophis2026/
Padua, Italy

July 6-10, 2026
Origins2026
https://originsparis.sciencesconf.org/
Paris, France

August 14-15, 2026
International Workshop on Cometary Astronomy VII
http://www.icq.eps.harvard.edu/IWCA.html
Cambridge, MA

September 1-4, 2026 
Mercury 2026
https://ees.kuleuven.be/en/mercury2026
Leuven, Belgium

September 6-11, 2026
Europlanet Science Conference
https://www.epsc2026.eu/
The Hague, The Netherlands

October 5-8, 2026
Serbian Astronomical Conference XXI
https://astro.matf.bg.ac.rs/kas21/
Belgrade, Serbia


18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18

PLANETARY SCIENCE JOURNAL - NEW PAPERS

Direct Links to Open Access Papers

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

Color and Photometric Properties of Newly Formed Impact Craters on the
Moon
Emerson Speyerer et al. 2026 PSJ 7:73
https://doi.org/10.3847/PSJ/ae4a06


19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19

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

The Spectroscopic Impact of Sublimation Under Martian Surface 
Conditions: Implications for Sample Analysis by the Rosalind Franklin 
Rover and Biosignature Preservation
Louisa J. Preston et al.
https://doi.org/10.1029/2025JE009430

Modeling Wind-Driven Waves on Other Planets: Applications to Mars, 
Titan, and Exoplanets
Una G. Schneck et al.
https://doi.org/10.1029/2025JE009490

Magnetic Field Induced by Convective Flow in Ganymede's Subsurface 
Ocean
L. Sachl,  J. Kvorka,  O. Cadek,  J. Velimsky
https://doi.org/10.1029/2025JE009456

Testing the Limits of Provenance Analysis From Basaltic Fluvial 
Sediment Near Sandvatn, Iceland, as a Mars Analog
Audrey R. Putnam et al.
https://doi.org/10.1029/2025JE009400

Fractal Dimensions of Venusian Lava Flows: New Findings for Atla Regio 
and Review of Previous Analyses
E. M. Recchuiti et al.
https://doi.org/10.1029/2025JE009142

Evaluating Seismic Ambient Noise Techniques for Imaging Lava Tubes on 
the Moon
Sabrina Keil et al.
https://doi.org/10.1029/2025JE009576

A Panspermia Origin for Venus Cloud Life
E. Guinan et al.
https://doi.org/10.1029/2025JE009296

Were There Tides on Ancient Mars?
M. Jolley,  M. Gugliotta,  J. A. M. Green
https://doi.org/10.1029/2025JE009292

Deciphering the "Missing Xenon Paradox" in Celestial Bodies: A 
Multifaceted Perspective Toward Demystifying This Enigma
Avinash Kumar Both et al.
https://doi.org/10.1029/2025JE009110

The Efficient Delivery of Highly Siderophile Elements to the Core 
Creates a Mass Accretion Catastrophe for the Earth
Richard J. Anslow et al.
https://doi.org/10.1029/2025JE009328

Interior Models of Mercury and Conditions for Iron Snow Formation in a 
Fe-S-Si Core
Abigail H. Dunnigan et al.
https://doi.org/10.1029/2025JE009368

Mercury's Tectonic and Geodynamic History: 1. Contractional Tectonic 
Landform Analysis and Tectonic Strain Using Machine Learning
A. Broquet & J. C. Andrews-Hanna
https://doi.org/10.1029/2025JE009584

Mercury's Tectonic and Geodynamic History: 2. Contribution of 
Membrane-Flexural Strains to the Tectonic Record
A. Broquet & J. C. Andrews-Hanna
https://doi.org/10.1029/2025JE009585


***********************************************************************
* The Planetary Exploration Newsletter is issued approximately weekly.
* Current and back issues are available at https://planetarynews.org
*
* To subscribe, go to https://planetarynews.org and click on Subscribe.
*
* An unsubscribe option is available at the end of every PEN email. Or
* send an email to pen_editor@psi.edu
*
* Please send all replies and submissions to pen_editor@psi.edu.
* Announcements and other messages should be brief with links to URLs
* for extended information, including detailed descriptions for job
* announcements. Title plus text is limited to 200 words. Go to
* https://planetarynews.org/submission.html for complete submission
* directions.
*
* PEN is a service provided by the Planetary Science Institute
* (https://www.psi.edu) using no NASA funds. All editorial work is
* volunteer.
***********************************************************************