Results 71 to 80 of about 4,347 (218)

Magnetic properties of geraisites, the first tektite strewn field identified in Brazil

Meteoritics &Planetary Science, EarlyView.
Abstract Geraisites are a newly recognized class of tektite from Brazil. They occur as centimeter‐sized, elongated to subspherical bodies scattered across surface gravel and shallow subsurface layers within a ~90‐km‐long strewn field extending between the municipalities of São João do Paraíso and Curral de Dentro, near the border between the states of ...
Melissa De Andrade Nunes, Ricardo I. F. Trindade, João Pedro Rodriguez Pinto, Alvaro P. Crósta, Gabriel G. Silva, Ludovic Ferrière, Camila R. Sales, Giovanna M. Tosi   +7 more
wiley   +1 more source

Solvent constraints for biopolymer folding and evolution in extraterrestrial environments

Proceedings of the National Academy of Sciences
We propose that spontaneous folding and molecular evolution of biopolymers are two universal aspects that must concur for life to happen. These aspects are fundamentally related to the chemical composition of biopolymers and crucially depend on the solvent in which they are embedded. We show that molecular information theory and energy landscape theory
Ignacio E. Sánchez, Ezequiel A. Galpern, Diego U. Ferreiro   +2 more
openaire   +4 more sources

Impact‐diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society

Meteoritics &Planetary Science, EarlyView.
Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie, S. Alwmark, D. Baratoux, G. Consolmagno, L. Ferrière, S. Goderis, N. Hauser, T. Kenkmann, C. Koeberl, G. R. Osinski, A. E. Pickersgill, M. Schönbächler   +11 more
wiley   +1 more source

Reassessing the organic carbon budget in the Murchison meteorite through an extraction–recovery mass‐balance approach

Meteoritics &Planetary Science, EarlyView.
Abstract A substantial fraction of organic carbon in carbonaceous chondrites has long been described as “missing,” reflecting incomplete recovery and limited resolution of operationally defined organic components. Here, we present a quantitative reassessment of the carbon budget in the Murchison meteorite using an integrated extraction–recovery mass ...
Hina Dohi, Minako Hashiguchi, Koichi Mimura   +2 more
wiley   +1 more source

Geochemical investigation of impactites from the Boltysh impact structure and possible relationship to early Danian sediments from the Umbria–Marche Basin, Italy

Meteoritics &Planetary Science, EarlyView.
Abstract Within the Danian Scaglia Rossa Formation appears a regionally correlatable horizon cutting across multiple sections and outcrops within the Umbria–Marche Basin of NE Italy, where it is intercalated with uniform pelagic carbonate successions. This horizon is called “ALE layer” and has tentatively been interpreted as a fine‐grained volcanic ash.
Toni Schulz, Sophia Wernitznig, Christian Koeberl, Bérengère Mougel, Alessandro Montanari, Frédéric Moynier   +5 more
wiley   +1 more source

Propulsion requirements for soft landing in extraterrestrial environments. vol 1-summary and propulsion design guide final report

, 1963
Summary and propulsion design guide for soft landing in extraterrestrial ...
Bensky, M. S.
core  

LifeMet: Report on the 2024–2025 meteorite recovery expedition in Dronning Maud Land, Antarctica for the study of microbe–meteorite interactions

Meteoritics &Planetary Science, EarlyView.
Abstract Since the discovery of nine meteorites near the Yamato mountains in 1969, Antarctica has been recognized as a superb location for meteorite recovery. While Antarctic recovery expeditions prioritize meteorite preservation for mineralogical and planetary studies, meteorites are not typically collected for biological applications.
Rachael Lappan, Rachel S. Kirby, Andrew G. Tomkins   +2 more
wiley   +1 more source

Stratospheric dust collection by DUSTER (Dust in The Upper Stratosphere Tracking Experiment and Retrieval), a balloon-borne instrument, and laboratory analyses of collected dust.

, 2010
The subject of this work is focused on the study of stratospheric dust with DUSTER (Dust in the Upper Stratosphere Tracking Experiment and Retrieval) a balloon-borne instrument.
Ciucci, Alessandra
core  

Designing Extraterrestrial Habitats on Mars and the Moon: An Overview of Environmental Conditions and Design Considerations

In the past few decades, with growing knowledge of space science and technology, the interest in the possibility of constructing habitats on other celestial bodies has increased.
Bayar, Bengi
core   +1 more source

Production of ions at high energy and its role in extraterrestrial environments

, 2013
Ions in space are formed in various ways, the relevance of which depends on the specific conditions of the considered extraterrestrial environment. The interaction of neutral molecules with cosmic rays, UV photons, X-rays and other phenomena such as ...
N. Balucani, Robert Richter, R. Richter, CANDORI, Pietro, N. Alagia, F. Vecchiocattivi, PIRANI, Fernando, BALUCANI, Nadia, F. Pirani, S. Falcinelli, ROSI, Marzio, FALCINELLI, Stefano, P. Candori, M. Rosi, Stefano Stranges, VECCHIOCATTIVI, Franco, Michele Alagia, STRANGES, Stefano   +17 more
core   +1 more source