Results 1 to 10 of about 20,629 (247)
Microbial Populations of Stony Meteorites: Substrate Controls on First Colonizers [PDF]
Frontiers in Microbiology, 2017 Finding fresh, sterilized rocks provides ecologists with a clean slate to test ideas about first colonization and the evolution of soils de novo. Lava has been used previously in first colonizer studies due to the sterilizing heat required for its ...
Alastair W. Tait +4 more
doaj +2 more sources
The Nitrogen Heterocycle Content of Meteorites and Their Significance for the Origin of Life
Life, 2018 Carbonaceous chondrites are very primitive meteorites that are rich in carbon. They contain many soluble organic compounds, including nitrogen heterocycles.
Zita Martins
exaly +3 more sources
Magnetic Recording Stability of Taenite‐Containing Meteorites
Geophysical Research Letters, 2023 Sub‐μm taenite and tetrataenite grains observed in a number of (stony‐)iron meteorite groups are promising sources of paleomagnetic records in meteorites.
José A. P. M. Devienne +3 more
doaj +1 more source
Arhaeoastronomical analysis of the Levinsadovka sacrificial complex (South Russia) [PDF]
Archaeoastronomy and Ancient Technologies, 2013 The article presents the results of a study of the unique sacrifice of the Levinsadovka sacrificial complex. On it were found large accumulations of animal bones near the buildings. An analogue of this sacrificial complex in the Northern Black Sea region
Vodolazhskaya, L.N., Larenok, V.A.
doaj +1 more source
AGU Advances, 2021 Magnetic fields in the early solar system may have driven the inward accretion of the protoplanetary disk (PPD) and generated instabilities that led to the formation of planets and ring and gap structures.
Roger R. Fu +5 more
doaj +1 more source
Possible Ribose Synthesis in Carbonaceous Planetesimals
Life, 2022 The origin of life might be sparked by the polymerization of the first RNA molecules in Darwinian ponds during wet-dry cycles. The key life-building block ribose was found in carbonaceous chondrites.
Klaus Paschek +7 more
doaj +1 more source
Universe, 2022 Presolar grains are microscopic dust grains that formed in the stellar winds or explosions of ancient stars that died before the formation of the solar system.
Nan Liu, Sergio Cristallo, Diego Vescovi
doaj +1 more source
Classification of meteorites by petrophysical methods [PDF]
Bulletin of the Geological Society of Finland, 1983 The low field magnetic susceptibility, natural remanent magnetization (NRM) and bulk density were measured for 75 meteorite samples from 54 meteorites ranging from achondrites through chondrites and stony-irons to irons.
I.T. Kukkonen, L.J. Pesonen
doaj +1 more source
An Updated Catalog of Rayed Craters on Mars
Earth and Space Science, 2023 Martian meteorites represent the only samples of Mars available for study in terrestrial laboratories. In addition to their crystallization and surface ejection ages, these samples provide a detailed understanding of the geochemistry of the martian crust.
Jennifer K. Harris +4 more
doaj +1 more source
The Prevailing Catalytic Role of Meteorites in Formamide Prebiotic Processes
Life, 2018 Meteorites are consensually considered to be involved in the origin of life on this Planet for several functions and at different levels: (i) as providers of impact energy during their passage through the atmosphere; (ii) as agents of geodynamics ...
Raffaele Saladino +2 more
doaj +1 more source