The process by which a system of non-luminous bodies form around a star is fundamental to understanding the origins of our own solar system and how it fits into the context of other systems we have begun to study around other stars. Some basics of solar system formation have emerged to describe the process by which dust and gas around a newly formed star evolve into what we see today. The combination of occultation observations and the flyby observations by New Horizons of the Cold-Classical Kuiper Belt Object (CCKBO), (498958) Arrokoth, has provided essential new constraints on formation models through its three-dimensional shape. We present a case that an occultation-driven survey of CCKBOs would provide fundamental new insight into solar system formation processes by measuring population-wide distributions of shape, binarity, and spin-pole orientation as a function of size in this primordial and undisturbed reservoir.This article is part of the theme issue 'Major advances in planetary sciences thanks to stellar occultations'.
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http://dx.doi.org/10.1098/rsta.2024.0194 | DOI Listing |
Nanomaterials (Basel)
February 2025
Spec-X Lab, Istituto di Struttura della Materia Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, 00133 Roma, Italy.
Despite the huge progress achieved in the optimization of perovskite solar cell (PSC) performance, stability remains a limiting factor for technological commercialization. Here, a study on the photovoltaic, structural and morphological stability of semi-transparent formamidinium lead bromide-based PSCs is presented. This work focuses on the positive role of 2D nanoscale layer passivation, induced by perovskite surface treatment with a mixture of iso-Pentylammonium chloride (ISO) and neo-Pentylammonium chloride (NEO).
View Article and Find Full Text PDFSci Rep
March 2025
Institute of Fluid Dynamics and Thermodynamics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Technická 4, Prague, 166 07, Czech Republic.
Efficient heat dissipation is crucial for various industrial and technological applications, ensuring system reliability and performance. Advanced thermal management systems rely on materials with superior thermal conductivity and stability for effective heat transfer. This study investigates the thermal conductivity, viscosity, and stability of hybrid AlO-CuO nanoparticles dispersed in Therminol 55, a medium-temperature heat transfer fluid.
View Article and Find Full Text PDFChemSusChem
March 2025
Karlsruhe Institute of Technology, Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, 89081, Ulm, GERMANY.
Combining high-voltage cobalt-free LiNi0.5Mn1.5O4 (LNMO) with fluorine-free water-soluble binders holds the promise of achieving more sustainable and environment-friendly lithium-ion batteries (LIBs).
View Article and Find Full Text PDFMater Horiz
March 2025
School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, China, 430063.
The Arctic plays a crucial role in the Earth's climate system. However, the unique geography and climate of the Polar Regions present significant challenges for anti-icing/de-icing and clean water production in the Polar Regions, and there is an urgent need for innovative materials to help personnel and instrumentation address these issues. In this work, a composite structure with both micro- and nano-rough surfaces, excellent vapour escape channels and superhydrophobic properties is developed with the design concept of an anthill delicate cross-scale multi-stacked void structure.
View Article and Find Full Text PDFGlob Chang Biol
March 2025
Institute of Integrative Biology, ETH Zurich (Swiss Federal Institute of Technology), Zurich, Switzerland.
Resilience is a key feature of ecosystem dynamics reflecting a system's ability to resist and recover from environmental perturbations. Slowing down in the rate of recovery has been used as an early-warning signal for abrupt transitions. Recent advances in Earth observation (EO) vegetation data provide the capability to capture broad-scale resilience patterns and identify regions experiencing resilience loss.
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