Mostrando 81 - 90 Resultados de 90 Para Buscar '"extraterrestrial life"', tiempo de consulta: 0.75s Limitar resultados
  1. 81
    “…Because of this, and their relative ease of detection, metalloporphyrins appear attractive as chemical biosignatures in the search for extraterrestrial life. In this study, we investigated the stability of solid chlorido(2,3,7,8,12,13,17,18-octaethylporphyrinato)iron(III) [FeCl(oep)], which served as a model for heme-like molecules and iron geoporphyrins. …”
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    Chemical, Thermal, and Radiation Resistance of an Iron Porphyrin: A Model Study of Biosignature Stability
  2. 82
    “…Missions to detect extraterrestrial life are being designed to visit Europa and Enceladus in the next decades. …”
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    Contamination analysis of Arctic ice samples as planetary field analogs and implications for future life-detection missions to Europa and Enceladus
  3. 83
    “…In the search for extraterrestrial life in the Universe, it is critical to determine what constitutes a biosignature across multiple scales, and how this compares with “abiosignatures” formed by nonliving processes. …”
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    Deciphering Biosignatures in Planetary Contexts
  4. 84
    “…NASA has directed sample return missions from habitable worlds to manage “potential extraterrestrial life and bioactive molecules” which requires investigation of a range of potential BIs. …”
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    Heat inactivation of stable proteinaceous particles for future sample return mission architecture
  5. 85
    “…A key part of the search for extraterrestrial life is the detection of organic molecules since these molecules form the basis of all living things on Earth. …”
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    Using Organic Contaminants to Constrain the Terrestrial Journey of the Martian Meteorite Lafayette
  6. 86
    “…IMPORTANCE Due to their abilities to survive intense radiation and low water availability, hypersaline microbial mats are often suggested to be analogs of potential extraterrestrial life. However, even the limitations imposed on microbial processes by saturation-level salinity found on Earth have rarely been studied in situ. …”
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    Limitation of Microbial Processes at Saturation-Level Salinities in a Microbial Mat Covering a Coastal Salt Flat
  7. 87
    por Otto, Sijbren
    Publicado 2021
    “…Success in the synthesis of de novo life, once obtained, will have far-reaching implications for our understanding of what life is, for the search for extraterrestrial life, for how life may have originated on earth, and for every-day life by opening up new vistas in the form living technology and materials.…”
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    An Approach to the De Novo Synthesis of Life
  8. 88
    por Shaver, Peter
    Publicado 2011
    “…It covers a wide range of topics including the origin and evolution of our universe, the nature and origin of life, the evolution of life including questions of birth and death, the evolution of cognition, the nature of consciousness, the possibility of extraterrestrial life and the future of the universe. The book is written in a narrative style, as these topics are all parts of a single story. …”
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    Cosmic Heritage: Evolution from the Big Bang to Conscious Life
  9. 89
    “…This novel group could be of interest for studies about the emergence of life on Earth and to astrobiologists as homologs for possible extraterrestrial life. In this paper, we describe predicted mechanisms for survival of this clade at low pH and suggest its possible evolutionary trajectory from an inferred neutrophilic ancestor. …”
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    Genome-guided prediction of acid resistance mechanisms in acidophilic methanotrophs of phylogenetically deep-rooted Verrucomicrobia isolated from geothermal environments
  10. 90
    “…The combined strategies in this study can be extrapolated to examine other ancient non-permafrost environments and constrain the search for past and extant extraterrestrial life in permafrost and ice deposits on Mars. …”
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    Genomic reconstruction of fossil and living microorganisms in ancient Siberian permafrost
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