Results 21 to 30 of about 28,042 (247)
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
doaj +1 more source
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
doaj +1 more source
Habitability Models for Astrobiology [PDF]
Astrobiology, 2021 Habitability has been generally defined as the capability of an environment to support life. Ecologists have been using Habitat Suitability Models (HSMs) for more than four decades to study the habitability of Earth from local to global scales. Astrobiologists have been proposing different habitability models for some time, with little integration and ...
Méndez, A. +33 more
openaire +7 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Machine Learning Algorithms Applied to Identify Microbial Species by Their Motility
Life, 2021 (1) Background: Future missions to potentially habitable places in the Solar System require biochemistry-independent methods for detecting potential alien life forms.
Max Riekeles +2 more
doaj +1 more source
Astrobiology and Society in Europe Today [PDF]
, 2018 This book describes the state of astrobiology in Europe today and its relation to the European society at large. With contributions from authors in more than 20 countries and over 30 scientific institutions worldwide, the document illustrates the ...
Capova, Klara Anna +3 more
core +1 more source
Prospective Use of Probiotics to Maintain Astronaut Health during Spaceflight
Life, 2023 Maintaining an astronaut’s health during space travel is crucial. Multiple studies have observed various changes in the gut microbiome and physiological health.
Sahaj Bharindwal +4 more
doaj +1 more source
Biosignatures for Astrobiology
, 2018 This book aims at providing a brief but broad overview of biosignatures. The topics addressed range from prebiotic signatures in extraterrestrial materials to the signatures characterising extant life as well as fossilised life, biosignatures related to space, and space flight instrumentation to detect biosignatures either in situ or from orbit.
Jorge L. Vago +2 more
openalex +3 more sources