Results 91 to 100 of about 27,462 (193)

Terrestrial atmosphere, water and astrobiology

open access: yesEPJ Web of Conferences, 2010
Primitive life, defined as a chemical system capable to transfer its molecular information via self-replication and also capable to evolve, originated about 4 billion years ago from the processing of organic molecules by liquid water.
Coradini M., Brack A.
doaj   +1 more source

LIFE‐VALUE NARRATIVES AND THE IMPACT OF ASTROBIOLOGY ON CHRISTIAN ETHICS

open access: yesZygon, 2016
“Pale Blue Dot” and “Anthropocene” are common tropes in astrobiology and often appear in ethical arguments. Both support a decentering of human life relative to biological life in terms of value.
doaj   +2 more sources

Ethics and the Potential Conflicts between Astrobiology, Planetary Protection, and Commercial Use of Space

open access: yesChallenges, 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.
Erik Persson
doaj   +1 more source

Domains of life sciences in spacefaring: what, where, and how to get involved

open access: yesnpj Microgravity
The integration of biology and spacefaring has led to the development of three interrelated fields: Astrobiology, Bioastronautics, and Space Bioprocess Engineering.
Aaron J. Berliner   +5 more
doaj   +1 more source

Characterizing Exoplanet Habitability

open access: yes
A habitable exoplanet is a world that can maintain stable liquid water on its surface. Techniques and approaches to characterizing such worlds are essential, as performing a census of Earth-like planets that may or may not have life will inform our ...
Robinson, Tyler D.
core   +1 more source

Editorial: Reviews in astrobiology

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Alberto G. Fairén, Alberto G. Fairén
doaj   +1 more source

Group I introns in tRNA genes of Patescibacteria

open access: yesmSystems
Introns are generally considered rare in bacteria, yet they are frequently observed in Patescibacteria, which have highly reduced genomes. To systematically explore the diversity, roles, and evolution of introns in Patescibacteria, we first focused on ...
Yuna Nakagawa   +3 more
doaj   +1 more source

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