Rapid protoplanet formation in the outer Solar System recorded in a dunite from the carbonaceous chondrite reservoir by B. G. Rider-Stokes, X. Zhao, S. L. Jackson, M. D. Suttle, I. A. Franchi, L. F. White, R. C. Greenwood, M. J. Whitehouse, L. Riches, M. Anand, B. Hoefnagels, M. M. Grady

“…Based on the age discrepancies of iron meteorites and basalts from the inner and outer Solar System reservoirs, it is accepted that protoplanets in the inner Solar System formed first. …”
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Photometry of Outer Solar System Objects from the Dark Energy Survey.... by Pedro H. Bernardinelli, Gary M. Bernstein, T. M. C. Abbott, M. Aguena, S. S. Allam, D. Brooks, A. Carnero Rosell, J. Carretero, L. N. da Costa, M. E. S. Pereira, T. M. Davis, J. De Vicente, S. Desai, H. T. Diehl, P. Doel, S. Everett, B. Flaugher, J. Frieman, J. García-Bellido, E. Gaztanaga, R. A. Gruendl, G. Gutierrez, K. Herner, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, S. Lee, J. L. Marshall, J. Mena-Fernández, R. Miquel, J. Myles, A. A. Plazas Malagón, S. Samuroff, E. Sanchez, B. Santiago, I. Sevilla-Noarbe, M. Smith, E. Suchyta, G. Tarle, D. L. Tucker, V. Vikram, A. R. Walker, N. Weaverdyck, (The DES Collaboration)

“…These results will strongly constrain models of the outer solar system.…”
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Implications of Differentiated Late Accretion for the Volatile Inventory of the Bulk Silicate Earth by Damanveer S. Grewal, Varun Manilal

“…Late accretion, particularly if it originated from the outer solar system, could have significantly contributed to the bulk silicate Earth’s (BSE = mantle + crust + hydrosphere + atmosphere) carbon–nitrogen–hydrogen (C–N–H) inventory. …”
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A JWST Study of CO2 on the Satellites of Saturn by Michael E. Brown, Samantha K. Trumbo, Matthew Belyakov, M. Ryleigh Davis, Ashma Pandya

“…Solid state CO _2 has been detected throughout the outer solar system, even at temperatures where crystalline CO _2 is unstable, requiring that the CO _2 be trapped in a separate host material. …”
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Identifying signatures of past and present cryovolcanism on Europa by Elodie Lesage, Samuel M. Howell, Marc Neveu, Julia W. Miller, Mariam Naseem, Mohit Melwani Daswani, Justine Villette, Steven D. Vance

“…Abstract Europa, the most visibly active icy moon of Jupiter, is a prime target for the search for life in the outer solar system. Two spacecraft missions, Europa Clipper from the National Aeronautics and Space Administration (NASA) and the Jupiter Icy Moon Explorer (JUICE) from the European Space Agency (ESA), will observe its surface, probe its interior structure, and characterize the space environment starting in 2030. …”
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Abundant microchondrules in 162173 Ryugu suggest a turbulent origin for primitive asteroids by Matthew J. Genge, Natasha V. Almeida, Matthias van Ginneken, Lewis Pinault, Tobias Salge, Penelope J. Wozniakiewicz, Hajime Yano, Steven J. Desch

“…We suggest here formation of microchondrules in an outer Solar System chondrule factory, located in the Jovian pressure-bump, followed by turbulent diffusion and concentration relative to chondrules by intense turbulence. …”
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An Automated Occultation Network for Gravitational Mapping of the Trans-Neptunian Solar System by Daniel C. H. Gomes, Gary M. Bernstein

“…We explore the potential of an array of ${ \mathcal O }(100)$ small fixed telescopes, aligned along a meridian and automated to measure millions of occultations of Gaia stars by minor planets, to constrain gravitational signatures from a “Planet X” mass in the outer solar system. The accuracy of center-of-mass tracking of occulters is limited by photon noise, uncertainties in asteroid shapes, and Gaia’s astrometry of the occulted stars. …”
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Orbit of a Possible Planet X by Amir Siraj, Christopher F. Chyba, Scott Tremaine

“…The plausibility of an unseen planet in the outer solar system, and the expected orbit and mass of such a planet, have long been a topic of inquiry and debate. …”
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A Resonant Beginning for the Solar System’s Terrestrial Planets by Shuo Huang, Chris W. Ormel, Simon Portegies Zwart, Eiichiro Kokubo, Tian Yi

“…It is widely accepted that the outer solar system gas-giant planets originally formed in a resonant chain, which was later disrupted by dynamical instabilities. …”
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Spectroscopic Study of Ice Analogs of Trans-Neptunian Objects Exposed to Ionizing Radiation. II. Infrared Spectra and Functional Groups by Chaojiang Zhang, Jia Wang, Andrew M. Turner, Leslie A. Young, Ralf I. Kaiser

“…The findings in this study serve as an important starting point to fully unravel the chemical complexity, compositions, and evolutionary processes of objects in the outer solar system and will also provide fundamental support for the interpretation of astronomical observations such as those from the James Webb Space Telescope.…”
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Molecular Evolution of H2O:O2 Ices at Different Temperatures in Simulated Space Environments. I. Chemical Kinetics and Equilibrium by J. R. C. Silva, L. M. S. V. Queiroz, L. F. A. Ferrão, S. Pilling

“…We computationally investigated the chemical evolution of H _2 O:O _2 ices (6:1 ratio) under irradiation by cosmic-ray analogs (0.8 MeV H ^+ ) at 9, 50, and 100 K to understand the implications the chemical evolution of O _2 -containing ices in space, such as the surface of the Moon, comets, outer solar system bodies such Europa and Enceladus, as well as Kuiper Belt objects, and cold regions of the interstellar medium (ISM). …”
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Production, Transport, and Destruction of Dust in the Kuiper Belt: The Effects of Refractory and Volatile Grain Compositions by Thomas Corbett, Alex Doner, Mihály Horányi, Pontus Brandt, Will Grundy, Carey M. Lisse, Joel Parker, Lowell Peltier, Andrew R. Poppe, Kelsi N. Singer, S. Alan Stern, Anne J. Verbiscer

“…We present a model of silicate and ice grain dynamics in the outer solar system, considering gravitational and radiation forces and grain erosion. …”
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Spectral Diversity of DiSCo’s TNOs Revealed by JWST: Early Sculpting and Late Irradiation by R. Brunetto, E. Hénault, S. Cryan, N. Pinilla-Alonso, J. P. Emery, A. Guilbert-Lepoutre, B. J. Holler, L. T. McClure, T. G. Müller, Y. Pendleton, A. C. de Souza-Feliciano, J. Stansberry, W. Grundy, N. Peixinho, G. Strazzulla, M. T. Bannister, D. Cruikshank, B. Harvison, J. Licandro, V. Lorenzi, M. N. de Prá, C. Schambeau

“…The spectral diversity of trans-Neptunian objects (TNOs) is crucial for understanding the processes that led to the formation and evolution of planetesimals in the outer solar system. Using near-IR (NIR) spectra obtained by the James Webb Space Telescope (JWST) as part of the DiSCo-TNOs large program, we report the detection of well-clustered subgroups of TNOs. …”
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A Large Outburst, Coma Asymmetries, and the Color of Comet 243P/NEAT by Michael S. P. Kelley, Silvia Protopapa, Dennis Bodewits, Aren N. Heinze, Youssef Moulane, Quanzhi Ye, Bryce Bolin, Simon Conseil, Tony L. Farnham, Lori Feaga, Xing Gao, Chih-Hao Hsia, Emmanuel Jehin, Shrinivas R. Kulkarni, Russ R. Laher, Tim Lister, Frank J. Masci, Josiah Purdum, Bin Yang

“…Water ice is a fundamental building material of comets and other bodies in the outer solar system. Yet the properties of cometary water ice are challenging to study, due to its volatility and the typical distances at which comets are observed. …”
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An Extremely Deep Rubin Survey to Explore the Extended Kuiper Belt and Identify Objects Observable by New Horizons by J. J. Kavelaars, Marc W. Buie, Wesley C. Fraser, Lowell Peltier, Susan D. Benecchi, Simon B. Porter, Anne J. Verbiscer, David W. Gerdes, Kevin J. Napier, Joseph Murtagh, Takashi Ito, Kelsi N. Singer, S. Alan Stern, Tsuyoshi Terai, Fumi Yoshida, Michele T. Bannister, Pedro H. Bernardinelli, Gary M. Bernstein, Colin Orion Chandler, Brett Gladman, Lynne Jones, Jean-Marc Petit, Megan E. Schwamb, Pontus C. Brandt, Joel W. Parker

“…Modeling based on the Outer Solar System Origin Survey predicts at least 12 distant KBOs observable with the New Horizons LOng Range Reconnaissance Imager (LORRI) and approximately three objects within 1 au of the spacecraft, allowing higher-resolution observations than Earth-based facilities. …”
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