Results 81 to 90 of about 65,084 (220)
Abstract Samples returned from asteroid Ryugu by the Hayabusa2 mission are dominated by fine‐grained matrix material made of phyllosilicates and nanosulfides. Here, we report the mineralogical, textural, and chemical characteristics of nanosulfide‐rich regions identified in Ryugu particles.
Roberto Conconi +9 more
wiley +1 more source
A superbolide with an estimated mass of 13,000 tonnes exploded at an altitude of 22 km over the city of Chelyabinsk (Russia) at 03 hours 20 min. 33 sec. UTC on February 15, 2013. It is now known as the Chelyabinsk meteorite. Over the past 100 years after
R. A. Rakhmatulin
doaj +1 more source
Small but mighty: Impact hazards from iron Near‐Earth Objects
Abstract Small asteroids can impact Earth unexpectedly, as demonstrated by the Chelyabinsk event in 2013. The warning times are likely to be short, and the first tools for fast hazard predictions have been developed in the last years for encounters with rocky or cometary objects, which quickly fragment in the atmosphere and cause airbursts. However, in
Robert Luther +5 more
wiley +1 more source
Schreibersite: an effective catalyst in the formose reaction network
We report on the ability of the meteoritic material schreibersite to catalyze the generation of higher sugars from simple carbohydrates in the formose reaction network.
S Pallmann +5 more
doaj +1 more source
A geophysical investigation of the Roter Kamm impact crater, Namibia
Abstract The Roter Kamm impact crater is located in the southern Namib Desert. The crater has a diameter of 2.5 km and belongs to the category of simple, bowl‐shaped impact craters, with an elevated rim of fractured target rock. The crater's interior is completely buried beneath sediments, preventing extensive surface investigations of the bedrock ...
Hannah Nienhaus +6 more
wiley +1 more source
Rapid terrestrial weathering of the CI1 carbonaceous chondrite find Oued Chebeika 002
Abstract Alteration of historic CI1 meteorite falls during their curation demonstrates the susceptibility of smectite‐rich carbonaceous chondrites to terrestrial exposure. The discovery of Oued Chebeika 002 in Morocco in June 2024 presents a unique opportunity to document the earliest stages of weathering of a CI1 find.
Martin R. Lee, Jasper Glazer
wiley +1 more source
ABSTRACT Rising interest in the links between processed food consumption and poor health outcomes often overlooks the perspectives of those working in food technology and innovation. To address this, a virtual roundtable was held in October 2024 to provide a setting for a technical discussion among those working in food processing, technology and ...
Stacey Lockyer +11 more
wiley +1 more source
From Meteorite to Meteor-Wrong: Investigating a controversial specimen from Cuba
The meteorite “Cuba”, whose type of mass is catalogued as MNCN No. 17294 (Museum of Natural Sciences, Madrid, Spain), has long been considered an official meteorite, included in the Meteoritical Society’s online database.
Yasmani Ceballos-Izquierdo +2 more
doaj +1 more source
Research subject. This paper reports the results of a series of experiments carried out to study the mineral and geoche mical features of 10 Chelyabinsk meteorite fragments.
V. S. Antipin +3 more
doaj +1 more source
Impact fracturing and aqueous alteration of the CM carbonaceous chondrites [PDF]
Aqueous alteration of the CM carbonaceous chondrites has produced a suite of secondary minerals, and differences between meteorites in their abundance defines a progressive alteration sequence [e.g. 1, 2]. The means by which this water gained access
Lee, M.R., Lindgren, P., Simpson, S.S.L.
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