Results 41 to 50 of about 34,064 (228)
Metagenomic insights into S(0) precipitation in a terrestrial subsurface lithoautotrophic ecosystem
Frontiers in Microbiology, 2015 The Frasassi and Acquasanta Terme cave systems in Italy host isolated lithoautotrophic ecosystems characterized by sulfur-oxidizing biofilms with up to 50% S(0) by mass.
Trinity eHamilton +6 more
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Adaptationism fails to resolve Fermi's paradox [PDF]
Serbian Astronomical Journal, 2005 One of the most interesting problems in the nascent discipline of astrobiology is more than half-century old Fermi's paradox: why, considering extraordinary young age of Earth and the Solar System in the Galactic context, don't we perceive much older ...
Ćirković Milan M. +2 more
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The archaeal class Halobacteria and astrobiology: Knowledge gaps and research opportunities
Frontiers in Microbiology, 2022 Water bodies on Mars and the icy moons of the outer solar system are now recognized as likely being associated with high levels of salt. Therefore, the study of high salinity environments and their inhabitants has become increasingly relevant for ...
Jia-Hui Wu +8 more
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Red-edge position of habitable exoplanets around M-dwarfs
Scientific Reports, 2017 One of the possible signs of life on distant habitable exoplanets is the red-edge, which is a rise in the reflectivity of planets between visible and near-infrared (NIR) wavelengths.
Kenji Takizawa +4 more
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A sustainable culture of tardigrades (Hypsibius dujardini) for astrobiological laboratory activities [PDF]
EPJ Web of Conferences, 2019 Tardigrades are microscopic organisms that have gained importance in astrobiology in recent years. They have extreme survival ability and can enter into a state of latency for several years called cryptobiosis.
Núñez Patricia G. +2 more
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Revista Opinião Filosófica, 2023 The main idea here is to present reflections on the general aspects that structure the conceptual conception of the field of search for extraterrestrial life.
Anelisa Heizer, Bruno Nascimento-Dias
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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
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Physical constraints on the likelihood of life on exoplanets [PDF]
, 2017 One of the most fundamental questions in exoplanetology is to determine whether a given planet is habitable. We estimate the relative likelihood of a planet's propensity towards habitability by considering key physical characteristics such as the role of
Lingam, Manasvi, Loeb, Abraham
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, 2007 As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be photosynthesis, particularly photosynthesis that has evolved with a ...
Antígona Segura +12 more
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Limits of life and the habitability of Mars: The ESA space experiment BIOMEX on the ISS [PDF]
, 2019 BIOMEX (BIOlogy and Mars EXperiment) is an ESA/Roscosmos space exposure experiment housed within the exposure facility EXPOSE-R2 outside the Zvezda module on the International Space Station (ISS).
Alawi, Mashal +9 more
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