Results 11 to 20 of about 27,462 (193)
Intracellular bound chlorophyll residues identify 1 Gyr-old fossils as eukaryotic algae
Nature Communications, 2022 The authors report nickel-porphyrins derivatives of chlorophyll in ~1 Gyr-old multicellular eukaryotes, preserved in low-grade metamorphic rocks. This brand new approach permits to identify early phototrophic organisms through the geological record.
Marie Catherine Sforna +15 more
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Future space experiment platforms for astrobiology and astrochemistry research
npj Microgravity, 2023 Space experiments are a technically challenging but a scientifically important part of astrobiology and astrochemistry research. The International Space Station (ISS) is an excellent example of a highly successful and long-lasting research platform for ...
Andreas Elsaesser +20 more
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Astrobiological Stoichiometry [PDF]
Astrobiology, 2014 Chemical composition affects virtually all aspects of astrobiology, from stellar astrophysics to molecular biology. We present a synopsis of the research results presented at the "Stellar Stoichiometry" Workshop Without Walls hosted at Arizona State University April 11-12, 2013, under the auspices of the NASA Astrobiology Institute.
Patrick A, Young +12 more
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Habitability of galaxies and the application of merger trees in astrobiology [PDF]
Serbian Astronomical Journal, 2019 Galaxies represent the main form of organization of matter in our universe. Therefore, they are of obvious interest for the new multidisciplinary field of astrobiology.
Stojković N. +2 more
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Life, 2023 The origin of life on earth requires the synthesis of protobiopolymers in realistic geologic environments along strictly abiotic pathways that rely on inorganic phases (such as minerals) instead of cellular machinery to promote condensation.
Vincent S. Riggi +3 more
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Scientific Reports, 2022 Polygonal networks occur on various terrestrial and extraterrestrial surfaces holding valuable information on the pedological and climatological conditions under which they develop.
Christof Sager +3 more
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Journal of Big History, 2019 Astrobiology is the field of science devoted to searching for life elsewhere in the Universe. It is inherently interdisciplinary, integrating results from multiple fields of science, and in this respect has strong synergies with ‘big history’.
Ian A. Crawford
doaj +1 more source
EAS Publications Series, 2011 In dense molecular clouds, the birthplace of stars and planets, interstellar atoms and molecules freeze onto extremely cold dust and ice particles. These ices are processed by ultraviolet light and cosmic rays forming hundreds of far more complex species, some of astrobiological interest.
openaire +2 more sources
Exoplanets - search methods, discoveries, and prospects for astrobiology [PDF]
, 2008 Whereas the Solar System has Mars and Europa as the best candidates for finding fossil/extant life as we know it - based on complex carbon compounds and liquid water - the 263 (non-pulsar) planetary systems around other stars as known at 15 September ...
Jones, Barrie W
core +2 more sources
Human crew-related aspects for astrobiology research [PDF]
, 2011 Several space agencies and exploration stakeholders have a strong interest in obtaining information on technical and human aspects to prepare for future extra-terrestrial planetary exploration.
Foing, B.H., Pletser, V., Thiel, C.S.
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