PLANETARY EXPLORATION NEWSLETTER Volume 17, Number 7 (February 12, 2023) PEN Website: https://planetarynews.org Editor: Mark V. Sykes, Co-Editors: Matthew R. Perry, Alex Morgan Email: pen_editor@psi.edu Twitter: @pen2tweets o-------------------------TABLE OF CONTENTS---------------------------o 1. 4th Dust, Atmosphere, and Plasma Environment of the Moon and Small Bodies Workshop 2. PhD in Modeling Tidal Dissipation in Io at Delft University of Technology, Netherlands 3. Invitation to Submit Nomination Packages for AGU Planetary Science Awards 4. AOGS Session PS13: Surface Processes on Rocky Bodies in the Solar System 5. AOGS Session PS14: Venus - Evolution of the Interior, Surface, and Atmosphere 6. Chromatography Job Opening at NASA GSFC 7. Two PhD Positions in Space Physics in the Department of Physics at Umea University, Sweden 8. Postdoc in Mars Geology/Geomorphology at the Smithsonian National Air and Space Museum 9. PhD Position in Numerical Modeling of Meteorite Thermal and Mechanical Properties at DLR, Berlin 10. Three positions at IRF in Sweden 11. PostDoc Position in Astrochemistry in Protoplanetary Disks at the Space Research Institute, Graz 12. Call for Letters of Intent to Host the Asteroids, Comets, Meteors 2026 Conference 13. Ice Giant Systems Seminar Series: February 14, Dr. Kathy Mandt (JHU/APL) 14. [NASA] MUREP Space Technology Artemis Research (M-STAR) Announcement Released 15. [NASA] Preproposal Webinar on MUREP Curriculum Awards 16. Lunar Surface Innovation Consortium (LSIC) Spring Meeting 17. ICFS 2023 Session: Planetary Fluvial Sedimentology and Stratigraphy 18. Abstract Submission Reminder for Apophis T-6 Workshop 19. [NASA] PI Launchpad: Developing Your First Flight Mission Proposal 20. Planetary Meeting Calendar Additions 21. Planetary Science Journal - 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 4TH DUST, ATMOSPHERE, AND PLASMA ENVIRONMENT OF THE MOON AND SMALL BODIES WORKSHOP We are pleased to announce the 4th Dust, Atmosphere, and Plasma Environment of the Moon and Small Bodies (DAP-2023) workshop this summer. This will be a three-day workshop from June 5-7, 2023 in Boulder, CO. The DAP-2023 workshop will be hosted by the SSERVI-IMPACT team at the University of Colorado, and will be a forum to (i) discuss our current understanding of the surface environment of the Moon and other small bodies, (ii) share new results from past and ongoing missions to the Moon, airless bodies and comets, and (iii) describe expectations, problems, and solutions for planned future missions to dusty destinations. DAP-2023 will follow the tradition of three previous workshops, LDAP-2010, DAP-2012, and DAP-2017. Contributions to each of these workshops were published in special issues of Planetary and Space Sciences. A more detailed announcement with abstract submission instructions and dates should be arriving to your inbox by the end of the month, but for now please mark your calendar, and we look forward to seeing you in Boulder this June. Best regards, Tobin Munsat, Xu Wang, and Mihaly Horanyi DAP-2023 organizers 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 PHD IN MODELING TIDAL DISSIPATION IN IO AT DELFT UNIVERSITY OF TECHNOLOGY, NETHERLANDS The planetary exploration group at Delft University of Technology is advertising a fully funded PhD position on modelling tidal dissipation on Io. The position is aimed at developing a numerical model to link tidal dissipation in the interior to observations of high heatflow and volcanism. The focus is on modelling the feedback between heat generation and Io's interior structure, and the generation of melt. The position is suitable for (soon to be) MSc graduates in engineering or physics (or equivalent) with a strong background in modelling and programming. The position will be for four years, with a preferred start date before July of 2023. The application deadline is February 22, 2023. Inquiries about the position can be sent to w.vanderwal@tudelft.nl. Further details are given here: https://tinyurl.com/2p92j7ad 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 INVITATION TO SUBMIT NOMINATION PACKAGES FOR AGU PLANETARY SCIENCE AWARDS AGU Awards are now open for submission. We are reaching out to the community to encourage nominations for the main two planetary awards: (1) Ronald Greeley Early Career Award (for scientists up to 6 yrs from their final degree; must be active AGU members) - nominations due April 1 https://tinyurl.com/2p8h55yu (2) Fred Whipple Award and Lecture (for outstanding achievement by a mid-career or senior scientist; AGU membership not required) - nominations due April 12 https://tinyurl.com/yxczzusp Also check out the AGU Union awards that some of our colleagues may be eligible for. Nominations require a lead nominator and 3 supporting letters, along with some supporting documentation. We are happy to answer questions about the process. Go to: https://www.agu.org/Honor-and-Recognize/Honors/Union-Awards/ The AGU Planetary Section Leadership and Awards Canvassing Committee: contact us at AGU.PS.Awards.CC@gmail.com for questions. 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 AOGS SESSION PS13: SURFACE PROCESSES ON ROCKY BODIES IN THE SOLAR SYSTEM The session will be held during the 20th AOGS Annual Meeting on July 30 - April 4 in Singapore. By characterizing the surface geomorphology, material properties, and subsurface stratigraphy, our understanding of the geological processes that have acted on rocky bodies over their history develops. Remarkable advances in both remote sensing and in-situ exploration in recent years have shed further light on the many outstanding questions about the formation and evolution of the Solar System. We would like to invite you to submit abstracts related to the following topics, but are not limited to: - Recent and future planetary exploration missions; - Planetary geologic mapping; - Planetary geomorphology; - Planetary remote sensing; - Planetary subsurface structure; - Observation and characterization of asteroids and comets; - Water, volatiles, organics; - Thermal properties of the Moon, asteroids, and comets; - Dust of planetary and small bodies; - Cosmic rays, solar wind and their interaction with planetary surfaces. Please consider submitting an abstract: https://tinyurl.com/y373n7jp Abstract deadline: February 14, 2023 Conveners: Yi Xu and Roberto Bugiolacchi [Edited for length] 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 AOGS SESSION PS14: VENUS - EVOLUTION OF THE INTERIOR, SURFACE, AND ATMOSPHERE The session will be held during the 20th AOGS Annual Meeting on July 30 - April 4 in Singapore. While many spacecraft have flown by or descended to the surface of Venus, it has only been visited long-term by a few orbiters, such as multiple Venera spacecraft from the Soviet Union, NASA's Pioneer Venus 1 and Magellan missions, ESA's Venus Express, and JAXA's currently ongoing mission Akatsuki. Four missions, including VERITAS, DAVINCI, EnVision and Venera D, have been selected by NASA, ESA and Roscosmos to explore Venus in the coming decades. In the meantime, China's Venus Volcano and Climate imaging Explorer (VOICE) mission is now one of the candidates for future missions to be implemented, and if selected VOICE will orbit Venus by 2030. The proposed session aims to consolidate our understanding of the evolutionary history of Venus and to better prepare focused questions for the future missions. For more details and submitting abstracts, please see: https://tinyurl.com/y373n7jp Looking forward to seeing you in Singapore. Abstract deadline: February 14, 2023 Convenors: Yang Liu, Xiaolong Dong, James Head, Jorn Helbert [Edited for length] 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 CHROMATOGRAPHY JOB OPENING AT NASA GSFC The Planetary Environments Lab at NASA Goddard Space Flight Center, which studies the chemistry and astrobiology of the atmospheres and surfaces of planetary bodies, is seeking a scientist who specializes in chromatography, with a strong emphasis on front end separation techniques and hardware development. Candidates are expected to have experience in chromatography mass spectrometry techniques. The job is open to all US citizens. Applications are open between 2/9/2023 and 2/23/2023. Go to: https://www.usajobs.gov/job/702547900 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 TWO PHD POSITIONS IN SPACE PHYSICS IN THE DEPARTMENT OF PHYSICS AT UMEA UNIVERSITY, SWEDEN The first position is on studying terrestrial magnetosheath jets (Principal Investigator is Associate Prof. Maria Hamrin, email: maria.hamirn@space.umu.se). For more information about this ad on how to apply for it please visit: https://tinyurl.com/2u9fscr6 The second position is on modeling magnetosphere-interior coupling at Mercury (Principal Investigator is Dr. Shahab Fatemi, email: shahab.fatemi@umu.se). For more information about this ad on how to apply for it please visit: https://tinyurl.com/yck3xwad The employment for both positions is limited to four years at full time for up to five years if teaching and other departmental work is performed. Applications should be submitted via our e-recruitment system Varbi at latest by 15 April 2023. The employment starts in 1 September 2023 or according to agreement. If you have any questions, please do not hesitate to contact the principal investigators of each position. 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 POSTDOC IN MARS GEOLOGY/GEOMORPHOLOGY AT THE SMITHSONIAN NATIONAL AIR AND SPACE MUSEUM The Smithsonian Institution, National Air and Space Museum (NASM), Center for Earth and Planetary Studies (CEPS) in Washington, DC welcomes applications for a postdoctoral position. Research areas for the position include analysis of: - Geologic mapping of Mars, including relevant data analysis, and drafting text and figures for peer-reviewed publications. - Geomorphic and topographic analyses of fluvial landforms using Mars orbiter and rover data, including relatively young fluvial landforms on impact craters. - Participation on the Science Operations Team for Mars Science Laboratory Curiosity rover; and field studies of Mars analog landforms. Applicants must demonstrate experience in analysis of Earth or planetary datasets. A background in quantitative terrestrial or planetary geology and experience with geographic information systems analysis of imaging and topography are desired. This is a full-time, 2-year position in Washington, DC with benefits. The Smithsonian Institution is an Equal Opportunity Employer. More details and application process here: https://www.si.edu/content/ohr/SITrustVacs/SITRUST-23-NASM0201.pdf Application deadline is 5pm (Eastern time) on February 17, 2023. For questions, email Sharon Wilson Purdy (purdys@si.edu) or Ross Irwin (irwinr@si.edu). 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 PHD POSITION IN NUMERICAL MODELING OF METEORITE THERMAL AND MECHANICAL PROPERTIES AT DLR, BERLIN The DLR Institute of Planetary Research in Berlin is looking for a PhD candidate interested in numerical modeling the mechanical and thermal properties of extraterrestrial materials. Current space missions to asteroids Ryugu and Bennu as well as the analysis of returned samples and meteorites have provided valuable data on their physical properties, but the theoretical understanding of the mechanisms governing their physical behavior are still lacking behind. The goal of this project is to develop numerical models that can be directly compared to laboratory experiments on analogue materials and meteorites. For more details on the open position and how to apply please visit: https://tinyurl.com/2p8jmay3 10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10 THREE POSITIONS AT IRF IN SWEDEN (1) Research engineer specializing in analog electronics Your main area of responsibility will be to develop, design, manufacture and test electronics for space instruments. Go to: https://tinyurl.com/455m8b8d (2) Post-Doctoral Position in Space Plasma Physics The tasks include but are not limited to: - science data analysis from IRF's particle instruments onboard lunar missions - collaboration with our simulation group working on the exosphere dynamics and global Moon - solar wind interaction models Go to: https://tinyurl.com/yckm2pm2 (3) Post-doctoral position in Atmospheric Physics The tasks will include but are not limited to: - lidar measurements - testing and improving data inversion routines - analysis of lidar data - compilation of data products for validation Go to: https://tinyurl.com/4a6xy2ub 11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11 POSTDOC POSITION IN ASTROCHEMISTRY IN PROTOPLANETARY DISKS AT THE SPACE RESEARCH INSTITUTE, GRAZ The Space Research Institute (IWF) of the Austrian Academy of Sciences (OeAW), is offering a PostDoc Position in Astrochemistry in Protoplanetary Disks. The successful candidate will join the IWF research group "Planet-forming Disks and Astrochemistry" led by Dr. Peter Woitke as part of the OeAW's efforts to expand the theme of exoplanet research at the IWF in Graz, Austria. The candidate is expected to contribute to the development of IWF's disk group by comparing observational data with modelling results obtained with the thermo-chemical disk simulation code ProDiMo. The applicant must hold a PhD in Physics, Geophysics, Astrophysics, or a related field. The appointment is initially for a duration of 3 years, with the possibility of an extension for another 3 years. The appointment begins as early as June 1, 2023. Applications must include: (1) CV, (2) publication list, (3) research statement - max 3 pages, (4) academic certificates, and (5) names of three referees willing to send letters of recommendation Please send the application as one PDF file, mentioning Job ID: IWF172PD122 to Cosima Muck, cosima.muck@oeaw.ac.at, no later than March 1, 2023. Go to: https://tinyurl.com/4mmsfn9m [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 CALL FOR LETTERS OF INTENT TO HOST THE ASTEROIDS, COMETS, METEORS 2026 CONFERENCE The organization of Asteroids, Comets, Meteors in Flagstaff, June 18-23, 2023 (ACM 2023) is well on its way. We call for letters of intent concerning the next conference after ACM 2023, tentatively scheduled for 2026 (maintaining the triennial pace). In particular, we encourage letters of intent from outside the Americas. The letter of intent should describe the organizing entity with the main contact person (detailed address and e-mail information), the conference venue and tentative timing, travel information, as well as envisaged funding support. Please note that ACM is not a professional society, and there is no carryover of funds or debts from one meeting to another. The letter of intent should not exceed three pages in length and can be submitted via e-mail to the ACM-SC chair. The timeline is as follows: - March 31, 2023: letters of intent due - April 30, 2023: decision by the ACM-SC The location and host of ACM2026 will be announced at the ACM2023 banquet. The letters should be sent to: Gonzalo Tancredi, gonzalo@fisica.edu.uy David Trilling, David.Trilling@nau.edu ACM Steering Committee Gonzalo Tancredi (chair) David Trilling Karri Muinonen Junichi Watanabe Andy Rivkin [Edited for length] 13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13-13 ICE GIANT SYSTEMS SEMINAR SERIES: FEBRUARY 14, DR. KATHY MANDT (JHU/APL) Date/Time: February 14, 2023, at 11am EST Speaker: Dr. Kathy Mandt (JHU/APL) Topic: Determining origin and evolution of Uranus with a single atmospheric probe The Ice Giant Systems Seminar Series showcases recent developments in scientific topics covering all aspects of the ice giant systems, including atmospheres, satellites, rings, magnetic fields, interior structures, and science related to formation and evolution. Registration is no longer needed. To access the virtual seminar, view the seminar schedule, and "Stay Informed" via the listserv, visit the series website here: https://neptuneodyssey.jhuapl.edu/Events/ We are actively looking for speakers starting in May, occurring on the second Tuesday of each month. If you're interested in giving a talk at a future Ice Giant Systems Seminar, please email us! Jodi Berdis: jodi.berdis@jhuapl.edu Mallory Kinczyk: mallory.knczyk@jhuapl.edu 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] MUREP SPACE TECHNOLOGY ARTEMIS RESEARCH (M-STAR) ANNOUNCEMENT RELEASED Go to: https://tinyurl.com/mr7jk83k Full proposals due at 5:00 pm Eastern Time on Monday, April 10, 2023. This is open only to U.S. 2-year/community colleges and 4-year colleges/universities, designated by the U.S. Department of Education as Minority Serving Institutions (AANH, AANAPISI, HBCU, HSI, NASNTI, PBI, TCU). Institutions not meeting this requirement are encouraged to collaborate with a lead MSI. Optional pre-proposal webinars for the M-STAR opportunity will be held on: Thursday, February 23, 2023 from 4:00-5:30 pm Eastern Time Tuesday, March 14, 2023 from 4:00-5:00 pm Eastern Time For information on joining the call, go to the above URL. For general inquiries, please contact: NASAMSTAR@nasaprs.com [Edited for length] 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] PREPROPOSAL WEBINAR ON MUREP CURRICULUM AWARDS Thursday, February 16, 2023 From 3:00-4:30pm Eastern Time During this session, the MCA team will give an in-depth overview of the opportunity and highlight information contained in the EONS-2023 document regarding proposal preparation and requirements. Proposers may also receive technical assistance from project staff at this time, including tips and guidance for submitting proposals. Please visit the MCA landing page in NSPIRES prior to the session for details on how to pre-register for the webinar: https://tinyurl.com/bd7j4rtb A second, abbreviated, pre-proposal webinar will be held on Thursday, April 6, 2023 from 4:00-5:00 pm Eastern Time, for further clarification and to answer questions. Details on how to join the second webinar will be provided on MCA landing page the later time. A recording of each webinar will be made available on the MCA landing page. Please submit all questions to MCA@nasaprs.com. 16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16-16 LUNAR SURFACE INNOVATION CONSORTIUM (LSIC) SPRING MEETING The Lunar Surface Innovation Consortium (LSIC) Spring meeting will be held on April 24-25, 2023, at the Johns Hopkins Applied Physics Lab and online. The event will focus on the technology developments needed to enable a sustained presence on the lunar surface. Panels, discussions, and working sessions will include topics such as long-term use cases for infrastructure on the lunar surface, technology developments, and discussing a community white paper aimed to capture the community's perspective on the infrastructure and technology developments needed to support transition from a mostly NASA-supported presence to industry or other public or private participants. Important dates: - February 15, Abstract submission closes - April 10, Registration deadline for in-person attendance - April 17, Registration deadline for virtual attendance The registration portal will open soon. For more information on the agenda and venue, or to register for the event, please visit: https://lsic.jhuapl.edu/Events/Agenda/index.php?id=380 17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17-17 ICFS 2023 SESSION: PLANETARY FLUVIAL SEDIMENTOLOGY AND STRATIGRAPHY Please consider submitting an abstract to the session on Planetary fluvial sedimentology and stratigraphy at the International Conference on Fluvial Sedimentology 2023 (2-7 July 2023) in Riva del Garda, Italy. For the full description of the session, please see: https://www.icfs2023.it Orbital imagery has revealed a vast, ancient fluvial stratigraphic record and rover missions have enabled detailed sedimentological studies combined with mineralogical and chemical analyses. In some instances, the stratigraphic record encoding details of that Mars' history and the signature of potential habitability is clearly visible and accessible both from orbiter and rover. Considering ongoing and future exploration missions aim to find potentially habitable environments, fluvial sedimentary rock outcrops therefore make desirable targets. This session invites contributions toward Martian fluvial sedimentary geology. I We welcome presentations that utilise appropriate Earth analogues, both modern and ancient and/or laboratory/numerical simulation. As ongoing and upcoming rover missions are providing increased opportunity to study extraterrestrial sedimentary strata, understanding directly accessible Earth analogues from which to base comparisons has never been more essential. We especially welcome contributions from early-career scientists and sedimentologists who are new to planetary science. Best wishes, Francesco Salese, Gian Gabriele Ori [Edited for length] 18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18-18 ABSTRACT SUBMISSION REMINDER FOR APOPHIS T-6 WORKSHOP Abstracts are due 23 February 2023 17:00 CST (GMT-6) for the upcoming workshop "Apophis T-6 Years: Knowledge Opportunities for the Science of Planetary Defense". The dates for this virtual-only workshop are 10-12 May, 2023. Abstracts are most highly encouraged focusing on international collaboration opportunities for both Earth-based observations and potential in situ investigations, following the prioritized recommendations of the Apophis Specific Action Team (SAT). Apophis SAT report is available here: https://www.lpi.usra.edu/sbag/documents/Apophis_SAT.pdf Workshop Website: https://www.hou.usra.edu/meetings/apophis2023/ Indication of Interest: https://www.hou.usra.edu/meetings/apophis2023/iofi/ Abstract Submission: https://www.hou.usra.edu/meetings/apophis2023/abstracts/ Inquiries may be directed to Richard Binzel (MIT): rpb at mit.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 [NASA] PI LAUNCHPAD: DEVELOPING YOUR FIRST FLIGHT MISSION PROPOSAL Applications due: April 14, 2023 Workshop Dates: July 24-27, 2023 Workshop Location: University of Michigan, Ann Arbor Are you thinking about developing your first flight mission proposal in the next few years but have no idea where to start? If you are a researcher or engineers who would like to submit a NASA space mission proposal in the next few years but don't know where to start, this June virtual workshop is for you! We are interested in broadening the pool of potential NASA space mission Principal Investigators (PIs). People with marginalized identities are strongly encouraged to apply. There is no cost to attend the workshop. PI Launchpad applications and instructions on how to apply and other information are available on the NSPIRES page for this opportunity: https://tinyurl.com/48f3d5ws [Edited for length] 20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20-20 PLANETARY MEETING CALENDAR ADDITIONS Note: Most face-to-face meetings going forward will have online components. Check their websites for details. Posted at https://planetarynews.org/meetings.html Aril 24-25, 2023 Lunar Surface Innovation Consortium Meeting https://lsic.jhuapl.edu/Events/Agenda/index.php?id=380 Laurel, MD July 2-7, 2023 International Conference on Fluvial Sedimentology 2023 https://www.icfs2023.it Riva del Garda, Italy [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.] 21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21-21 PLANETARY SCIENCE JOURNAL - NEW PAPERS Editor, Faith Vilas https://psj.aas.org Subsurface Science and Search for Life in Ocean Worlds Justin D. Lawrence et al. 2023 PSJ 4:22 https://doi.org/10.3847/PSJ/aca6ed Thin-shell Tidal Dynamics of Ocean Worlds Marc Rovira-Navarro et al. 2023 PSJ 4:23 https://doi.org/10.3847/PSJ/acae9a Optical Characterization of the DART Impact Plume: Importance of Realistic Ejecta Scattering Properties Ramin Lolachi et al. 2023 PSJ 4:24 https://doi.org/10.3847/PSJ/aca968 Ammonia Abundance Derived from Juno MWR and VLA Observations of Jupiter Chris Moeckel et al. 2023 PSJ 4:25 https://doi.org/10.3847/PSJ/acaf6b Leto Mission Concept for Green Reconnaissance of the Marius Hills Lunar Pit Donald M. Hooper et al. 2023 PSJ 4:26 https://doi.org/10.3847/PSJ/acaf87 Spectral Analysis of Clay-bearing Outcrops in Northern Xanthe Terra, Mars: Comparison with Oxia Planum, the Landing Site for the ExoMars Rover Mission Jeremy Brossier et al. 2023 PSJ 4:27 https://doi.org/10.3847/PSJ/acb3bc Analysis of CN Coma Morphology Features of Comet 21P/Giacobini-Zinner Charles Goldberg et al. 2023 PSJ 4:28 https://doi.org/10.3847/PSJ/acb436 (523599) 2003 RM: The Asteroid that Wanted to be a Comet Davide Farnocchia et al. 2023 PSJ 4:29 https://doi.org/10.3847/PSJ/acb25b *********************************************************************** * The Planetary Exploration Newsletter is issued approximately weekly. * Current and back issues are available at https://planetarynews.org * * To subscribe, unsubscribe, or change your email address, go to * https://planetarynews.org/pen_subscribe.php. * * 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. 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