Results 51 to 60 of about 27,462 (193)
The Role of N2 as a Geo-Biosignature for the Detection and Characterization of Earth-like Habitats [PDF]
, 2019 Since the Archean, N2 has been a major atmospheric constituent in Earth's atmosphere. Nitrogen is an essential element in the building blocks of life, therefore the geobiological nitrogen cycle is a fundamental factor in the long term evolution of both ...
Cubillos, Patricio E. +6 more
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ASTROBIOLOGY AND ASTROCHRISTOLOGY
Zygon, 2016 Astrochristology, as a subfield within the more comprehensive astrotheology, speculates on the implications of what astrobiology and related space sciences learn about our future space neighbors.
doaj +2 more sources
Sedimentology, EarlyView.ABSTRACT Gas domes serve as some of the earliest and most persisting indicators of life on Earth, yet their documentation in continental environments remains sparse. This study aims to bridge this gap by examining gas domes within the Permian fluvial succession of Monte Luco, located in the caldera of the Bolzano Supervolcano. These structures occur as
Andrea Baucon +5 more
wiley +1 more source
Astrobiology in philosophy or philosophy in astrobiology?
Cosmos and history, 2022 The purpose of this paper is to see how the creation of astrophilosophy could better emphasize the role of philosophy today, and would it behave as a side-by-side major philosophical discipline or a complement to the current philosophical disciplines, for example, bringing new light into metaphysics, epistemology, ethics, or philosophy of mind.
openaire +2 more sources
Frontiers in MicrobiologyUltraviolet (UV) radiation reaching the Earth's surface affects all living organisms. Recent reports show a trend of increasing exposure levels due to stratospheric ozone depletion and contamination.
Carolina González de Figueras +7 more
doaj +1 more source
Physiological Differentiation within a Single-Species Biofilm Fueled by Serpentinization
mBio, 2011 Carbonate chimneys at the Lost City hydrothermal field are coated in biofilms dominated by a single phylotype of archaea known as Lost City Methanosarcinales. In this study, we have detected surprising physiological complexity in single-species biofilms,
William J. Brazelton +3 more
doaj +1 more source
Sedimentology, EarlyView.ABSTRACT The Paleoarchean Antarctic Creek Member of the Mount Ada Basalt, Eastern Pilbara Terrane, Western Australia, includes beds of jasper and white chert composed of sand‐sized silica granules that often contain or are mixed with silt‐sized particles of haematite.
Donald R. Lowe, Gary R. Byerly
wiley +1 more source
Light and Life: Exotic Photosynthesis in Binary Star Systems
, 2011 The potential for hosting photosynthetic life on Earth-like planets within binary/multiple stellar systems was evaluated by modelling the levels of photosynthetically active radiation (PAR) such planets receive.
Briot D. +18 more
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The Planetary Science Journal, 2023 Low water activity limits the habitability of aqueous environments, and salts present on Mars are known to reduce water activity. As environmental brines are not pure solutions of a single salt, predicting their water activity is difficult without direct
Adam H. Stevens, Charles S. Cockell
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Extending Astrobiology: Consciousness and Culture [PDF]
, 2011 The Stanley Miller experiment suggests that amino acid-based life is ubiquitous in our universe, although its varieties are not likely to have followed the particular, highly contingent and path-dependent, evolutionary trajectory found on Earth. Are many
Rodrick Wallace
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