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Volume 19, Number 3
January 19, 2025
Editor: Alex Morgan Co-Editors: Mark V. Sykes, Matthew R Perry Email: pen_editor@psi.edu Twitter: @pen2tweets o-------------------------TABLE OF CONTENTS---------------------------o 1. JPL / Caltech Disaster Relief Fund 2. List of Planetary Science Internship Opportunities: Share With Your Students 3. Submit a Planetary Session to the 2025 GSA Connects Annual Meeting 4. [NASA] ROSES-24 Amendment 94: F.11 PRISM SALSA Due Dates Delayed 5. [NASA] ROSES-24 Amendment 99: F.12 Artemis IV Deployed Instruments Program Step-2 Proposal Due Date Deferred to March 7, 2025 6. [NASA] Request for Information (RFI): Development of NASA-DARES 2025 7. Restoring and Archiving Voyager 1 Cruise Images of Uranus and Neptune (RAV1CIUN) Data Released to PDS 8. Supervisory Physical Scientist (Center Director), US Geological Survey 9. Two 3-year Postdoctoral Positions in Planetary Climate Physics and Modeling 10. Geospatial Scientist Position With HX5 at NASA-JSC 11. Exploration Lab Manager with Mb Solutions at NASA-JSC 12. Schweickart Prize: Now Accepting Applications 13. Space Science Reviews Welcomes New Editor-in-Chief Olivier Witasse 14. New Horizons Science Spotlight Webinar This Week 15. Dragonfly Analog Field Trip to the Namib Sand Sea 16. EGU 2025 Session PS2.3: Titan Exploration 17. Goldschmidt Session: Chemistry of Exoplanets 18. OPAG February Hybrid Meeting, Lightning Talks and Poster Session 19. Planetary Meeting Calendar Additions 20. Planetary Science Journal - New Papers 21. Journal of Geophysical Research: Planets - New Papers Commercial/Fundraising Announcements: C1. Commercial: Suborbital Spaceflight and Analog Geology 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 JPL / CALTECH DISASTER RELIEF FUND The recent catastrophic fires have had a devastating impact on the planetary science community at JPL, with over 200 JPLers losing their homes. Please consider donating to support those affected: https://giving.caltech.edu/areas-to-support/relief 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 LIST OF PLANETARY SCIENCE INTERNSHIP OPPORTUNITIES: SHARE WITH YOUR STUDENTS The Planetary Geology Division of GSA has created a crowd-sourced spreadsheet specifically for sharing internship opportunities in planetary sciences. The goal of this sheet is to create a single-source list of opportunities particularly for internships, including opportunities not associated with an institutional program which can be harder to advertise. Please contribute opportunities to grow the internship list, and share the link with your students. https://tinyurl.com/2998szzs 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 SUBMIT A PLANETARY SESSION TO THE 2025 GSA CONNECTS ANNUAL MEETING 19-22 October 2025 in San Antonio, Texas https://community.geosociety.org/gsa2025 Planetary science will take center stage at the 2025 meeting as one of its three main themes: From Earth to the Cosmos: Geoscience Beyond Our Planet This theme invites exploration of planetary geoscience in its full scope, bridging terrestrial geology with the study of solid, icy, and gaseous bodies across the Solar System and extending to exoplanets. Planetary science covers impacts, volcanism and tectonism, atmospheric, sedimentary, and hydrologic processes, regolith formation, potential biosignatures and habitability. New frontiers include materials for In Situ Resource Utilization (ISRU), such as ice and critical minerals, which are crucial for supporting future human habitation on other worlds. Through this expanded lens, geoscientists can explore not only Earth's unique attributes but also the geological and material diversity across our Solar System, contributing to advancements in both science of planetary environments and commercial space exploration. GSA also welcomes proposals for field trips and short courses. 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 [NASA] ROSES-24 AMENDMENT 94: F.11 PRISM SALSA DUE DATES DELAYED F.11 Payloads and Research Investigations on the Surface of the Moon: Stand Alone Landing Site Agnostic (PRISM SALSA) solicits proposals for investigations that include development and flight of science-driven payloads to be delivered to the lunar surface by the Commercial Lunar Payload Services (CLPS). This PRISM opportunity is for science investigations that are stand-alone (i.e., single instruments rather than suites) and location agnostic. ROSES-2024 Amendment 94 delays the proposal due dates for F.11 PRISM SALSA. The Step-1 proposal due date has is now January 29, 2025, and the Step-2 proposal due date is now April 1, 2025. https://tinyurl.com/4ehevntf Questions concerning F.11 PRISM SALSA, may be directed to Kennda Lynch via HQ-PRISM@mail.nasa.gov. 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 [NASA] ROSES-24 AMENDMENT 99: F.12 ARTEMIS IV DEPLOYED INSTRUMENTS PROGRAM STEP-2 PROPOSAL DUE DATE DEFERRED TO MARCH 7, 2025 In November 2024 NASA released F.12 Artemis IV Deployed Instruments Program, that solicits proposals for instruments to be deployed on the surface of the Moon during the second crewed lunar south polar landing. ROSES-2024 Amendment 99 delays the due date for Step-2 proposals to F.12 Artemis IV Deployed Instruments Program. Step-2 proposals are now due March 7, 2025. Please note that only those who have already submitted a Step-1 proposal can submit a Step-2 proposal. Questions concerning F.12 Artemis IV Deployed Instruments Program may be directed to hq-artemisinstruments@mail.nasa.gov. 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 [NASA] REQUEST FOR INFORMATION (RFI): DEVELOPMENT OF NASA-DARES 2025 The NASA Decadal Astrobiology Research and Exploration Strategy (DARES) has been amended, answers to Town Hall Q&A, and the due date has been extended. Number: NNH25ZDA002L New Response Date: March 17, 2025 https://go.nasa.gov/ABStrategyRFI NASA's Science Mission Directorate (SMD) has made minor adjustments to the DARES RFI. A Question and Answers (Q&A) document also has been posted. The Q&A are primarily sourced from questions raised at the November 8, 2024 Astrobiology Program Town Hall. A recording of that Town Hall is available on YouTube at: https://youtu.be/SRcGNR42QhI?si=1bNklpHx15zpI02X. This amendment delays the RFI response date to March 17, 2025. Questions and comments may be sent to HQ-RFIastrobio@mail.nasa.gov. [Edited for length] 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 RESTORING AND ARCHIVING VOYAGER 1 CRUISE IMAGES OF URANUS AND NEPTUNE (RAV1CIUN) DATA RELEASED TO PDS RAV1CIUN data (DOI 10.17189/t2r8-rk88) are available in PDS: https://tinyurl.com/5n8zxb8m RAV1CIUN PDART project reprocessed all Voyager 1 narrow-angle images of Neptune and Uranus, taken during interplanetary cruise, using the best calibrations. These were analyzed to derive planetary reflectance for each phase angle in each Voyager filter. All Voyager "quick-look engineering data records" (QEDRs) held at JPL's Multimission Imaging Processing Laboratory since the 1980s (on tape, then CDs, finally online) were processed. 29,579 QEDR files included 14,307 for Voyager 1 and 15,272 for Voyager 2. (These do not include all images acquired by Voyager. All images from Voyager planetary encounters are found in the PDS Ring-Moon Systems node and PDS Imaging node.) All binary headers were read and an ASCII VICAR header and PDS4 label were created for each file. Headers indicated the spacecraft, camera (or other instrument), and acquisition time for the data. Narrow-angle images, acquired in 11 known and 2 new Voyager 1 cruise phase Uranus/Neptune imaging sessions, were processed to CALIBRATED I/F. Statistics from each image were used to derive full-planet albedo for that filter and phase angle and included in the bundle. 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 SUPERVISORY PHYSICAL SCIENTIST (CENTER DIRECTOR), US GEOLOGICAL SURVEY The USGS Southwest Region is currently seeking applicants for the position of Center Director of the USGS Astrogeology Science Center. This challenging and rewarding position is being filled as GS-15 Supervisory Physical Scientist (1301 Series) in Flagstaff, Arizona. The vacancy is open January 17 through the 27, 2025. Major Duties Include: - Supervise a staff of over 55 researchers and support personnel. - Lead the development and execution of geoscience research into other planetary bodies including mapping and assessing planets' geologic nature, mineralogy, geomorphology, history and evolution and encourage incorporation of those studies in multidisciplinary partnerships. - Represent the Centers science, internally and externally. - Manage the Center's science portfolio and core capabilities consistent with the agency's mission priorities, including development of projects and completing a variety of science information products. - Engage as a team member with other USGS Science Center Directors in the Southwest Region and with Southwest Regional Office leadership to employ science capabilities in the most effective manner with the highest standards of science quality. https://www.usajobs.gov/job/828500000 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 TWO 3-YEAR POSTDOCTORAL POSITIONS IN PLANETARY CLIMATE PHYSICS AND MODELING Important: Applicants are encouraged to read through the entire vacancy announcement prior to applying; applicants must submit all required documentation prior to the announcement closing. Dr Joao M. Mendonca invites applications for two available 3-year postdoctoral positions to start in 2025 focused on planetary climate physics and modelling. The successful applicants will join the new research group in planetary sciences at the University of Southampton. These positions are funded by a large Horizon Europe Guarantee grant: https://gtr.ukri.org/projects?ref=EP%2FZ00330X%2F1 The successful candidates will contribute to the development of the Planetary Climate Model OASIS and explore the key mechanisms that drive the climates of a wide range of terrestrial planets, both in our Solar System and beyond. You can find links to the two new postdoc positions here: Position #1 is more focused on code development: https://jobs.soton.ac.uk/Vacancy.aspx?ref=2952924WF Position #2 is more focused on climate physics research: https://jobs.soton.ac.uk/Vacancy.aspx?ref=2953424WF The application deadline is 14 February 2025. 10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10 GEOSPATIAL SCIENTIST POSITION WITH HX5 AT NASA-JSC The Geospatial Scientist will: - Employ GIS and remote sensing techniques to Earth, Moon, and other planetary image data in support of International Space Station (ISS) and Artemis missions. - Provide science services and technology products to a range of human exploration organizations including Gateway, Orion, the lander/ascent systems, spacesuits, EVA, and ISS. - Interact with scientists, engineers, and managers in a highly dynamic and occasionally time critical environment. - Develop funding proposals for submission to relevant scientific and technology grant solicitations opportunities. - And more... Details: https://tinyurl.com/bdej2bnr 11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11 EXPLORATION LAB MANAGER WITH MB SOLUTIONS AT NASA-JSC The Exploration Lab Manager will: - Be the primary Lab Manager and point of contact contractor for Advanced Concepts for Exploration (ACE) lab - Adhere to all ARES Lab Manager responsibilities which include: lab safety, documentation, requirements, inventory, purchasing, equipment usage and upkeep, user training, and other duties as assigned - Set up, maintain, coordinate service contracts, and train users of all equipment and instruments within the ACE Lab. Including, but not limited to: 3D printer(s), soldering equipment, small thermal-vacuum chamber, etc. - Coordinate with external lab users to ensure test setups are conducted in safe and effective manner - Advocate for lab usage across JSC and its partners, coordinate with stakeholders, provide tours of lab, educate interested users - Maintain content of ACE lab internal webpages, SharePoint, Teams; track lab usage and provide weekly, monthly, and quarterly status updates as required - Work collaboratively across ARES laboratories and JSC facilities, including: Simulant Development Lab (SDL), Image Science Analysis Lab (ISAL), Field Equipment for Exploration Training Lab (FEET), and other exploration, research, curation, and engineering facilities - Provide technology and hardware development for small exploration projects with various scientists and engineers - And more... Details: https://mbsolutionsinc.applicantpro.com/jobs/3615202-134562.html [Edited for length] 12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12-12 SCHWEICKART PRIZE: NOW ACCEPTING APPLICATIONS Join us on 22 or 23 January 2025, 9-10 am PST Are you a graduate student or postdoctoral fellow with bold ideas for planetary defense? The Schweickart Prize invites you to submit an innovative proposal for tackling challenges like asteroid detection, impact mitigation, space law, or public education. The winner will be granted a cash prize of $10k USD, receive an award, be given public exposure through a press campaign, and receive mentorship by the Prize Selection Committee, including Apollo 9 Astronaut Rusty Schweickart. Interested students are encouraged to join one of the two Zoom information webinars with Q&A this Wednesday 1/22 or Thursday 1/23 at 9am PST. RSVP here: https://bit.ly/4fUfnUu To attend one of the webinars you must fill in this form no later than Tuesday 1/21 at 12 pm PST: https://bit.ly/4fUfnUu For further details, visit the official Schweickart Prize website: https://www.schweickartprize.org/for-students Sign up for the newsletter: https://bit.ly/3PKJvqJ 13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13 SPACE SCIENCE REVIEWS WELCOMES NEW EDITOR-IN-CHIEF OLIVIER WITASSE Introducing our new Editor-in-Chief to succeed Hans Bloemen Publisher and editors of the journal Space Science Reviews welcome its new Editor-in-Chief Olivier Witasse. He is following in the footsteps of Hans Bloemen, who retired from this post after having served as an EiC from 2003-2024. We are more than grateful for Hans Bloemen's contributions in developing Space Science Reviews to one of the leading journals in the field. Olivier Witasse is joining the current Associate Editors James L. Burch, Christina M. S. Cohen, Maurizio Falanga, and Carol A. Raymond. Olivier Witasse earned his PhD at the Universite Joseph Fourier (Grenoble I) in 2000. He is a planetary scientist, staff at the European Space Agency, Noordwijk, The Netherlands. He has been deputy/project scientist for various space projects including Huygens, Venus Express, Mars Express, ExoMars Trace Gas Orbiter and currently JUICE, the European mission to Jupiter and its icy moons. His research focusses on planetary upper atmospheres and planetary space weather, including data analysis and interpretation, development of data processing software, and modelling. His work also involves studying Venus, Earth, Mars and its moons Phobos and Deimos, comets, asteroids, Jupiter and its moon Europa, Saturn and its moon Titan. https://link.springer.com/journal/11214/updates/27730144 14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14-14 NEW HORIZONS SCIENCE SPOTLIGHT WEBINAR THIS WEEK Join us on 23 January 2025, 2:30-3pm EST (11:30-12 PST, 12:30-1pm MST, 1:30-2pm CST) New Horizons continues its operation, now at 60.7au 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. To raise awareness of New Horizon's scientific impact we are beginning a new spotlight seminar series (30 min, fourth week each month) which we invite you to attend online, or watch recorded at your convenience. Our speaker will be J. Michael Shull of University of Colorado Boulder and he will be speaking on: "Excess Ultraviolet Emission at High Galactic Latitudes: A New Horizons View" Connection Link: https://zoom.us/j/97317697636?pwd=MTAzMjJmNThTeFppR3JoYzlkUXVCQT09 Meeting ID: 973 1769 7636 Passcode: 802327 Calendar for future seminars: https://tinyurl.com/2dp85h2h Recordings are archived and posted at: https://pluto.jhuapl.edu/News-Center/index.php#Spotlight-Presentations For questions, contact New Horizons Co-I Susan Benecchi, susank@psi.edu 15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15-15 DRAGONFLY ANALOG FIELD TRIP TO THE NAMIB SAND SEA We are leading a NASA-funded field trip to Namibia to enable members of the planetary community to become familiar with analog terrain for Dragonfly's exploration in Titan's Shangri-La sand sea. Members of the planetary science community are invited to apply to join the trip; those selected will have their travel and field expenses dominantly covered. The trip departs the USA on 2025 October 4 and finishes on 2025 October 15. We will undertake field and drone analog activities to improve the scientific return from the Dragonfly mission. Applicants from US institutions are welcomed from all backgrounds, career stages, and positions. Final selections (30-40 participants) will seek to maximize the utility of the field exercise by creating an open, collaborative, diverse, and inclusive experience. To apply, send an email on or before 5 February 2025 with your CV and a 1-page Letter of Application to us below. The Letter should describe how you expect to contribute to the field exercise and how you expect that the experience might benefit you. If you have any questions, please contact us. Jani Radebaugh: janirad@byu.edu Jason Barnes: jwbarnes@uidaho.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 GOLDSCHMIDT SESSION: CHEMISTRY OF EXOPLANETS We invite you to submit abstracts to the "Chemistry of Exoplanets" session (Theme 2, 02k) at Goldschmidt 2025 in Prague (6-11 July). We are at the beginning of an observational revolution in exoplanet science. The advanced capabilities of JWST, ALMA, and ground-based observatories will allow us to better characterize the properties of exoplanets and their atmospheres. This information will allow us to place Earth and our Solar System's other rocky bodies in the wider context of planet formation and evolution. Based on current understanding, the most common types of planets are sub-Neptunes and super-Earths for which we have no analog in our Solar System. Exoplanets' chemical properties are expected to be diverse, from their interior structures to their atmospheric compositions, all of which are shaped by the chemical environment in protoplanetary disks and subsequently modified by processes throughout planetary evolution. A comprehensive understanding of exoplanet demographics and planetary habitability requires interdisciplinary knowledge across geo- and cosmo-chemistry, astronomy, planetary science, mineral physics, and \biology. In this session, we invite contributions spanning theoretical, experimental and observational research seeking to improve our understanding of the chemical properties of exoplanets and protoplanetary disks. Deadline February 26 at 23:59 CET, submit an abstract here: conf.goldschmidt.info/goldschmidt/2025/cfp.cgi 17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17 OPAG FEBRUARY HYBRID MEETING, LIGHTNING TALKS AND POSTER SESSION The next Outer Planets Assessment Group (OPAG) meeting will be held on February 25-27, 2025 as a hybrid meeting, virtually and at the University of Arizona in Tucson, AZ. OPAG will host a poster session on the evening of February 25, for in-person attendees. Posters topics include: - Research (in particular, Uranus science) - Mission concepts - Technology developments (in particular, Uranus-relevant technology) - EDIA (Equity, Diversity, Inclusion, and Accessibility) A brief lightning talk (1 min) will be given by presenters to advertise the posters. For virtual attendees who would like to present, we can offer a longer lightning talk (3 minutes, depending on the number of presentations). Come and highlight your work! If you wish to give a present (virtually or in person) please fill out this interest form by February 7, 2025. https://tinyurl.com/49aj6b5u For questions, contact Morgan Cable (morgan.l.cable@jpl.nasa.gov) or Carol Paty (cpaty@uoregon.edu). There is also an opportunity for a limited number of stipends for in-person and virtual attendance for students and early career scientist. The deadline to apply is January 24. Further details on this and a link to register for the meeting are here: https://www.lpi.usra.edu/opag/meetings/feb2025/ 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 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 September 7-12, 2025 EPSC-DPS Joint Meeting https://www.epsc-dps2025.eu/information/call-for-sessions.html Helsinki, Finland [Editor Note: If there is a planetary-related meeting, conference or workshop that you think your colleagues should be aware of, please send the date, title, URL and location to pen_editor@psi.edu.] 19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19-19 PLANETARY SCIENCE JOURNAL - NEW PAPERS Direct Links to Open Access Papers Editor, Faith Vilas https://psj.aas.org Oxidizing ExoCAM: Introducing the Radiative Effects of Oxygen and Ozone into the ExoCAM General Circulation Model Russell Deitrick et al. 2025 PSJ 6:8 https://doi.org/10.3847/PSJ/ad9900 Observations and Quantitative Compositional Analysis of Ceres, Pallas, and Hygiea Using JWST/NIRSpec Andrew S. Rivkin et al. 2025 PSJ 6:9 https://doi.org/10.3847/PSJ/ad944c Photolysis and Sublimation Chemistry of Ammonium Cyanide with Relevance to Cometary Environments O. H. Wilkins et al. 2025 PSJ 6:10 https://doi.org/10.3847/PSJ/ad9a67 Mapping Venus's Gravity Field with the VERITAS Mission Flavia Giuliani et al. 2025 PSJ 6:11 https://doi.org/10.3847/PSJ/ad991a Nongravitational Forces in Planetary Systems David Jewitt 2025 PSJ 6:12 https://doi.org/10.3847/PSJ/ad9824 Implications of Differentiated Late Accretion for the Volatile Inventory of the Bulk Silicate Earth Damanveer S. Grewal and Varun Manilal 2025 PSJ 6:13 https://doi.org/10.3847/PSJ/ad9606 20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20 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 No new open access papers this week. *********************************************************************** COMMERCIAL/FUNDRAISING ANNOUNCEMENTS *********************************************************************** C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1-C1 Commercial: Suborbital Spaceflight and Analog Geology Do you want to gain exposure to planetary analog field geology? Do you want to see the future of human-tended suborbital spaceflight research with Virgin Galactic? How about gaining the experience necessary to teach your students from your own expertise and not just from a book's? Then join us Feb. 27-March 3 (inclusive of travel dates) for the next installment of the Earth and Space Experience for Educators in southern New Mexico. We sold out this past October, so register here: https://www.areslearning.com/earthandspace Direct questions to kirby@planex.space. *********************************************************************** * 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. All PEN * submissions will be tweeted @pen2tweets. Please submit a 234 (or * fewer) character tweet. Alternatively, the editorial staff will * create one for you. 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. ***********************************************************************