Results 191 to 200 of about 64,792 (321)

Crater Morphometry and Scaling in Coarse, Rubble-Like Targets: Insights from Impact Experiments [PDF]

open access: yes
Spacecraft images reveal that the asteroids Itokawa, Ryugu, and Bennu are covered with coarse, boulder-rich material [13]. Impactors that collide with these bodies encounter a target with extreme physical heterogeneity.
Barnouin, O. S.   +8 more
core   +1 more source

Biomaterials for Reconstructive Treatment of Peri‐Implantitis

open access: yesJournal of Periodontal Research, EarlyView.
Reconstructive therapy should be implemented in contained defects. Various bone filler materials with or without a barrier membrane and/or adjunctive biologics may be applied. ABSTRACT Peri‐implantitis is a pathological condition affecting the tissues surrounding dental implants, marked by inflammation of the peri‐implant connective tissue and ...
Ausra Ramanauskaite   +3 more
wiley   +1 more source

Insights on the volcanic and impact histories of the lunar nearside from the petrology, geochemistry, and geochronology of the Calcalong Creek lunar regolith breccia meteorite

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 3, Page 392-421, March 2025.
Abstract The Calcalong Creek lunar meteorite is a regolith breccia with a lithologically diverse array of clasts set in a glassy, highly vesicular matrix. Here, we present a comprehensive new analysis of the meteorite. Comparisons to remote sensing data, lunar sample lithologies, and lunar sample ages indicate that it was likely sourced from regolith ...
B. H. Oliveira   +6 more
wiley   +1 more source

Large meteorite impacts: The K/T model [PDF]

open access: yes
The Cretaceous/Tertiary (K/T) boundary event represents probably the largest meteorite impact known on Earth. It is the only impact event conclusively linked to a worldwide mass extinction, a reflection of its gigantic scale and global influence.
Bohor, B. F.
core   +1 more source

Iron and copper sulfides in asteroid (162173) Ryugu: Formation conditions and a comparison to the CI and CY chondrites

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 3, Page 506-528, March 2025.
Abstract JAXA's Hayabusa2 sample return mission visited the volatile‐rich carbonaceous (C‐type) asteroid (162173) Ryugu with the aim of ground‐truthing remote observations, returning a pristine sample from a C‐type asteroid, and strengthening links between asteroids and the meteorite collection. Here, we have conducted a systematic study of coarse (>10 
C. S. Harrison   +26 more
wiley   +1 more source

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