Frontiers in Astronomy and Space Sciences, 2021 In the search for life on other planets, the presence of photosynthetic surface vegetation may be detectable from the colors of light it reflects. On the modern Earth, this spectral reflectance is characterized by a steep increase in reflectance between ...
Owen R. Lehmer +5 more
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A False Encounter: An Interspecies Martian Tale [PDF]
Pulse, 2021 This project concerns a fictional scenario in which an AI rover encounters an alien life form in the crevices of a Martian rock. The seconds in which this encounter takes place are mysteriously wiped out from the rover’s Pancam metadata. It is speculated
Oscar Salguero
doaj
Bacterial Metal Accumulation as a Strategy for Waste Recycling Management
Resources, 2023 Sustainable mechanisms for efficient and circular metal recycling have yet to be uncovered. In this study, the metal recycling potential of seven metal-resistant bacterial species (Deinococcus radiodurans, Deinococcus aerius, Bacillus coagulans ...
Denise Kölbi +6 more
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Free Energies of Reaction for Aqueous Glycine Condensation Chemistry at Extreme Temperatures
Geophysical Monograph Series, Page 271-283., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Matthew Kroonblawd, Nir Goldman
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Présentation. Exobiologie, aspects historiques et épistémologiques
Cahiers François Viète, 2003 The definition of exobiology – the study of the origins, evolution and distribution of life in the universe, as well as of related structures and processes – raises the problem of the link between current and past studies on the origins of terrestrial ...
Florence Raulin Cerceau +1 more
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Microorganisms, 2020 The discovery of liquid water at several locations in the solar system raises the possibility that microbial life may have evolved outside Earth and as such could be accidently introduced into the Earth’s ecosystem.
Katja Schaefer +9 more
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“Freezing” Thermophiles: From One Temperature Extreme to Another
Microorganisms, 2022 New detections of thermophiles in psychrobiotic (i.e., bearing cold-tolerant life forms) marine and terrestrial habitats including Arctic marine sediments, Antarctic accretion ice, permafrost, and elsewhere are continually being reported.
Tetyana Milojevic +3 more
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Stephen Hawking’s Warning on Contacting Aliens: A Physics Perspective on the Intelligence Trap [PDF]
Journal of Biomedical Physics and EngineeringThe search for extraterrestrial intelligence is a fascinating and important endeavor, but it raises significant ethical and safety concerns. In the search for extraterrestrial intelligence, scientists use knowledge of physics to identify potential ...
Seyed Mohammad Javad Mortazavi +4 more
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Doppler cross-correlation spectroscopy as a path to the detection of Earth-like planets
Comptes Rendus. Physique, 2023 In the middle of the 20th century, a paradigm shift appeared concerning the expected frequency of planetary systems in the galaxy ...a shift induced by the observation of the rotational velocities of low main sequence stars (Struve 1952)!At the same time,
Mayor, Michel
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Genomic Features of the Bundle-Forming Heliobacterium Heliophilum fasciatum
Microorganisms, 2022 Eight species of heliobacteria have had their genomes sequenced. However, only two of these genomes have been analyzed in detail, those from the thermophilic Heliomicrobium (Hmi.) modesticaldum and the alkaliphilic Heliorestis (Hrs.) convoluta.
Kelly S. Bender +9 more
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