Results 71 to 80 of about 32,223 (288)
The Influence of Stellar Phosphorus on Our Understanding of Exoplanets and Astrobiology [PDF]
Astrophysical Journal, 2020 When searching for exoplanets and ultimately considering their habitability, it is necessary to consider the planet’s composition, geophysical processes, and geochemical cycles in order to constrain the bioessential elements available to life ...
N. Hinkel, H. Hartnett, P. Young
semanticscholar +1 more source
Proteins: Structure, Function, and Bioinformatics, EarlyView.ABSTRACT Bacterial ferredoxins are small iron–sulfur binding proteins that function as soluble electron shuttles between redox enzymes in the cell. Their simple 2×(β–α–β) fold, central metabolic function, and ubiquity across all kingdoms of life have led to the proposal that ferredoxins were likely among the earliest proteins.
Jan A. Siess, Vikas Nanda
wiley +1 more source
Space Economy and Sustainability: A Systematic Review
Sustainable Development, EarlyView.ABSTRACT The space economy is booming thanks to the increasing investment of government agencies, private companies, and venture capitalists. From the beginning of the New Space era, the array of actors involved in the development of technologies for extra‐terrestrial activities has increased, as well as the downstream applications that foster ...
Marianna Valente +2 more
wiley +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
Philosophical Aspects of Astrobiology Revisited
Philosophies, 2021 Given the idea that Life as we know it is nothing but a special form of a generically underlying dynamical structure within the physical Universe, we try to introduce a concept of Life that is not only derived from first principles of fundamental physics,
Rainer E. Zimmermann
doaj +1 more source
Astrobiology, 2020 The ‘‘Life in Space’’ project was funded in the wake of the Italian Space Agency’s proposal for the development of a network of institutions and laboratories conceived to implement Italian participation in space astrobiology experiments.
S. Onofri +12 more
semanticscholar +1 more source
Investigating Impacts of Amino Acids on the Structural Stability of Anionic Biomembranes
ChemSystemsChem, Volume 7, Issue 2, March 2025.Glycine and lysine interact with the anionic membrane composed of POPC and POPG (1 : 1). Lysine partitions into the membrane and induces structural alterations, while the membrane remains impermeable to it. In contrast, glycine causes no physicochemical damage and permeates through the membrane.
Arslan Siddique +6 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
The Origin of Life from Primordial Planets
, 2010 The origin of life and the origin of the universe are among the most important problems of science and they might be inextricably linked. Hydro-gravitational-dynamics (HGD) cosmology predicts hydrogen-helium gas planets in clumps as the dark matter of ...
Gibson, Carl H. +2 more
core +1 more source
Ethics and the potential conflicts between astrobiology, planetary protection and commercial use of space [PDF]
, 2017 A high standard of planetary protection is important for astrobiology, though the risk for contamination can never be zero. It is therefore important to find a balance.
Persson, Erik
core +2 more sources