Results 101 to 110 of about 3,915 (212)

The Magnetic Mineralogy of Carbonaceous Chondrites: A Microscopy and Machine Learning Study of Meteorite WIS 91600

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract A central challenge in the paleomagnetic study of meteorites is to characterize their diverse remanence carriers. Here, we develop a machine‐learning assisted workflow that combines multi‐scale (mm to nm) and multi‐dimensional (2D‐3D) microscopy to build a comprehensive picture of ferromagnetic mineralogy in the C2 ungrouped carbonaceous ...
Richard J. Harrison, Po‐Yen Tung, Thomas Ginnis, Farhang Nabiei, Ursula Shaw, Elias N. Mansbach, James Bryson   +6 more
wiley   +1 more source

Surface Geology and Evolution of Asteroid Ryugu: Insights From Hayabusa2 Global Mapping

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Rubble‐pile asteroids, characterized by loose aggregates of debris held together by gravity, represent both a significant planetary hazard and a key to understanding planetesimal formation. Geologic mapping of these bodies provides essential insights into their origins, evolution, and surface processes.
Lisa M. Vincent, Trishit Ruj, Goro Komatsu, Aditya Ray, Hiroshi Kikuchi, Ryodo Hemmi, Hideaki Miyamoto, Seiji Sugita, the Hayabusa2 ONC science team   +8 more
wiley   +1 more source

Osmium Isotope and Highly Siderophile Element Constraints on the Cretaceous/Paleogene Boundary in Western Pacific Pelagic Clay

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract The Cretaceous/Paleogene (K/Pg) Chicxulub impact produced globally synchronous enrichments of highly siderophile elements (HSEs) and a pronounced decline in marine osmium isotope ratios (187Os/188Os), forming a key geochemical marker of the boundary.
Honami Sato, Yoichi Usui, Kazuhide Mimura, Akira Ishikawa, Kazutaka Yasukawa, Junichiro Ohta, Yasuhiro Kato   +6 more
wiley   +1 more source

Cosmic Dust Flux During the Quaternary: The Record of Large Scoriaceous and Unmelted Micrometeorites From the Transantarctic Mountains Collection

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract We estimate the cosmic dust flux to Earth through the study of rare micrometeorites that preserve part of their precursor features during atmospheric entry heating, namely unmelted and scoriaceous subtypes. Combining high‐precision mass balance measurements, X‐ray computed microtomography and scanning electron microscopy, we studied mass, size
S. Ottaviani, L. Folco, M. D. Suttle, R. Repič, L. Mancini, T. Battiston, S. Iannini Lelarge, M. Masotta   +7 more
wiley   +1 more source

Mercury's Tectonics Record a Damage Zone From the Caloris Basin‐Forming Impact

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract The Caloris basin is the largest of the well‐preserved basins on Mercury and has left a dominant mark in the planet's geologic record. Previous analysis of orientations of a global compilation of Mercury's faults hypothesized that the Caloris basin‐forming impact introduced a widespread damage zone from which basin‐radial and ‐concentric ...
Christian Klimczak, Kelsey T. Crane, Paul K. Byrne, Işık S. Yazıcı   +3 more
wiley   +1 more source

Heat and Wildfires During the K‐Pg Mass Extinction Enhanced by Fine Dust

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract The primary kill mechanisms responsible for the K‐Pg mass extinction, including the end of the dinosaurs, are much debated. Here, we reexamine the hypothesis that heat and fire were the primary kill mechanisms for terrestrial organisms during the K‐Pg mass extinction. We show that spherules and uncondensed vapor from the impact vapor plume are
Brandon C. Johnson, Alexandria V. Johnson, Shigeru Wakita, Douglas S. Robertson   +3 more
wiley   +1 more source

Symbiont‐Mediated Detoxification of Xenobiotics in Honey Bees

Microbial Biotechnology, Volume 19, Issue 7, July 2026.
This Opinion proposes that honey bee detoxification should be viewed as a holobiont trait. Gut microbes can transform selected ingested xenobiotics and modulate host detoxification pathways, providing a basis for microbial biotechnology strategies to protect pollinators.
Yao Liu, Esther du Rand, Christian Pirk, Huoqing Zheng   +3 more
wiley   +1 more source

Technologized Reproduction in Space: A Space‐Bioethical Case for Assisted Procreation

Bioethics, Volume 40, Issue 6, Page 582-588, July 2026.
ABSTRACT With the increasing feasibility of space colonization, the issue of reproduction in space is becoming more relevant. As new settlements on the Moon, Mars, and other celestial bodies emerge, ensuring generational continuity will be essential for the survival and growth of these communities.
Maurizio Balistreri, Konrad Szocik
wiley   +1 more source

Contemporary disasters may not kill more women than men: an empirical inquiry into sex‐differentiated fatalities in the twenty‐first century

Disasters, Volume 50, Issue 3, July 2026.
Abstract This study investigates the claim that women are disproportionately more likely to die in disasters by reviewing existing data sources and compiling new datasets on sex‐differentiated disaster fatalities in the twenty‐first century. The analysis is structured by disaster type, covering geophysical, meteorological, climatological, hydrological,
Olivier Rubin
wiley   +1 more source

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1610-1626, July 2026.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source