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Low Energy Subsurface Environments as Extraterrestrial Analogs [PDF]
Frontiers in Microbiology, 2018 Earth's subsurface is often isolated from phototrophic energy sources and characterized by chemotrophic modes of life. These environments are often oligotrophic and limited in electron donors or electron acceptors, and include continental crust, subseafloor oceanic crust, and marine sediment as well as subglacial lakes and the subsurface of polar ...
Rose M. Jones +2 more
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Life, 2019 Organic compounds are present as complex mixtures in extraterrestrial materials including meteorites, which may have played important roles in the origin of life on the primitive Earth.
Hiroshi Naraoka +3 more
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Martian biolith: A bioinspired regolith composite for closed-loop extraterrestrial manufacturing.
PLoS ONE, 2020 Given plans to revisit the lunar surface by the late 2020s and to take a crewed mission to Mars by the late 2030s, critical technologies must mature. In missions of extended duration, in situ resource utilization is necessary to both maximize scientific ...
Ng Shiwei +2 more
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The discovery of ETI as a high-consequence, low-probability event [PDF]
, 2011 The authors use the opportunity of presenting a paper during the 51st International Astronautical Congress in Rio de Janeiro to introduce a numerical method of characterizing the potential significance of any announcement of discovery of extraterrestrial
Almár, Iván, Tarter, Jill
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Lezioni dall’Antartide. Per un’ecologia del sistema solare [PDF]
S&F_scienzaefilosofia.it, 2023 Lessons from Antarctica. For an ecology of the Solar System It seems plausible that the near future will see an ever greater expansion of human presence in several environments of the Solar System, such as the Moon and the planet Mars.
De Piccoli, Lorenzo
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Nature Communications, 2019 Polycyclic aromatic hydrocarbons (PAHs) represent key molecular building blocks in extraterrestrial environments but the understanding of their formation and growth in this environment has remained elusive.
Long Zhao +8 more
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Nucleobase synthesis in interstellar ices
Nature Communications, 2019 The formation of nucleobases can take place in extraterrestrial environments. Here the authors show the simultaneous synthesis of three purine nucleobases and three pyrimidine from interstellar ice analogues that suggest the evolution from molecular ...
Yasuhiro Oba +4 more
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The Hypothesis of a “Living Pulse” in Cells
Life, 2023 Motility is a great biosignature and its pattern is characteristic for specific microbes. However, motion does also occur within the cell by the myriads of ongoing processes within the cell and the exchange of gases and nutrients with the outside ...
Marina Walther-Antonio +1 more
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Perspectives on Extraterrestrial Civilizations
, 2021 In this study we are interested in variables that predict the degree to which someone believes that extraterrestrial (alien) civilizations exist, and also the degree to which they support efforts to discover extraterrestrial ...
John Dylan Bays, Brian Richards
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Fire Safety in Extraterrestrial Environments [PDF]
Space 98, 1998 Despite rigorous fire-safety policies and practices, fire incidents are possible during lunar and Martian missions. Fire behavior and hence preventive and responsive safety actions in the missions are strongly influenced by the low-gravity environments in flight and on the planetary surfaces.
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