AcidopHiles : a not- so-basic life by McPherson, Stephanie M. (Stephanie Mae)

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Volcanogenic pseudo-fossils from the ~3.48 Ga Dresser Formation, Pilbara, Western Australia by Wacey, D, Noffke, N, Saunders, M, Guagliardo, P, Pyle, D

“…However, reworked, isolated and silicified microstructures of this type may prove particularly problematical in early or extraterrestrial life studies since they adsorb carbon onto their surfaces and are readily pyritised, mimicking a common preservation mechanism for bona fide microfossils. …”

The timing of evolutionary transitions suggests intelligent life is rare by Snyder-Beattie, AE, Sandberg, A, Drexler, KE, Bonsall, MB

“…It is unknown how abundant extraterrestrial life is, or whether such life might be complex or intelligent. …”

Contamination analysis of Arctic ice samples as planetary field analogs and implications for future life-detection missions to Europa and Enceladus by Lígia F. Coelho, Marie-Amélie Blais, Alex Matveev, Tina Keller-Costa, Warwick F. Vincent, Rodrigo Costa, Zita Martins, João Canário

“…Abstract Missions to detect extraterrestrial life are being designed to visit Europa and Enceladus in the next decades. …”
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Six ‘Must-Have’ Minerals for Life’s Emergence: Olivine, Pyrrhotite, Bridgmanite, Serpentine, Fougerite and Mackinawite by Michael J. Russell, Adrian Ponce

“…The fact that wet and rocky bodies in the solar system much smaller than Earth or Venus do not reach the internal pressure (≥23 GPa) requirements in their mantles sufficient for producing bridgmanite and, therefore, are too reduced to stabilize and emit CO₂—the staple of life—may explain the apparent absence or negligible concentrations of that gas on these bodies, and thereby serves as a constraint in the search for extraterrestrial life. The astrobiological challenge then is to search for worlds that (i) are large enough to generate internal pressures such as to produce bridgmanite or (ii) boast electron acceptors, including imported CO₂, from extraterrestrial sources in their hydrospheres.…”
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Remote Laser Induced Fluorescence of Soils and Rocks by Vasily N. Lednev, Alexey F. Bunkin, Sergey M. Pershin, Mikhail Ya. Grishin, Diana G. Artemova, Vladimir A. Zavozin, Pavel A. Sdvizhenskii, Raul A. Nunes

“…The perspectives of LIDAR sensing of organic samples deposited at soils and rock have been discussed including future space exploration missions in the search for extraterrestrial life.…”
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Viewing Short Gamma-Ray Bursts From a Different Angle by J. Michael Burgess, J. Michael Burgess, Jochen Greiner, Damien Bégué, Dimitrios Giannios, Francesco Berlato, Vladimir M. Lipunov

“…The much wider gamma-ray emission cone from NS-NS mergers also implies a higher deadly rate of γ-rays for extraterrestrial life in the Universe.…”
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Origins of building blocks of life: A review by Norio Kitadai, Shigenori Maruyama

“…Keywords: Astrobiology, Biochemistry, Chemical evolution, Extraterrestrial life, Hadean Earth, Hydrothermal systems…”
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Increased Stability in Carbon Isotope Records Reflects Emerging Complexity of the Biosphere by Martin Schobben, Bas van de Schootbrugge

“…An enhanced understanding of the biogenicity of carbonate carbon isotope signatures at multiple spatial and temporal scales provides a baseline that is usable in the search for signs of (past) extraterrestrial life.…”
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Spectroscopic Detection of Biosignatures in Natural Ice Samples as a Proxy for Icy Moons by Francisco Calapez, Rodrigo Dias, Rute Cesário, Diogo Gonçalves, Bruno Pedras, João Canário, Zita Martins

“…Some of the icy moons of the solar system with a subsurface ocean, such as Europa and Enceladus, are the targets of future space missions that search for potential extraterrestrial life forms. While the ice shells that envelop these moons have been studied by several spacecrafts, the oceans beneath them remain unreachable. …”
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Unsolved Problems in Biology / by Ezell, Frederick, author 648591

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Effect of Space Flight Factor on Dormant Stages in Aquatic Organisms: A Review of International Space Station and Terrestrial Experiments by Victor R. Alekseev, Jiang-Shiou Hwang, Margarita A. Levinskikh

“…It also can be used for creating an extraterrestrial artificial ecosystem and searching for extraterrestrial life.…”
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A predictive model for the ichnological suitability of the Jezero crater, Mars: searching for fossilized traces of life-substrate interactions in the 2020 Rover Mission Landing Sit... by Andrea Baucon, Carlos Neto de Carvalho, Antonino Briguglio, Michele Piazza, Fabrizio Felletti

“…Ichnofossils offer unique advantages in the search for extraterrestrial life, including the fact that they are resilient to processes that obliterate other evidence for past life, such as body fossils, as well as chemical and isotopic biosignatures. …”
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Venus Life Finder Missions Motivation and Summary by Sara Seager, Janusz J. Petkowski, Christopher E. Carr, David H. Grinspoon, Bethany L. Ehlmann, Sarag J. Saikia, Rachana Agrawal, Weston P. Buchanan, Monika U. Weber, Richard French, Pete Klupar, Simon P. Worden, Darrel Baumgardner, on behalf of the Venus Life Finder Mission Team

“…Finding evidence of extraterrestrial life would be one of the most profound scientific discoveries ever made, advancing humanity into a new epoch of cosmic awareness. …”
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Deep Microbial Colonization in Saponite-Bearing Fractures in Aged Basaltic Crust: Implications for Subsurface Life on Mars by Yuri Sueoka, Seiya Yamashita, Mariko Kouduka, Yohey Suzuki

“…One of the most promising planetary bodies that might harbor extraterrestrial life is Mars, given the presence of liquid water in the deep subsurface. …”
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Sulfur- and Iron-Rich Mineralogical Features Preserved in Permafrost in the Canadian High Arctic: Analogs for the Astrobiological Exploration of Mars by Graham E. Lau, Graham E. Lau, Christopher B. Trivedi, Christopher B. Trivedi, Stephen E. Grasby, John R. Spear, Julie Cosmidis, Julie Cosmidis, Alexis S. Templeton

“…We also consider how such geological sulfide emplacements and their weathered surface expressions may provide a target for future surface and remote sensing studies of Mars and in the search for extraterrestrial life.…”
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Astroecology, cosmo-ecology, and the future of life by Michael N. Mautner

“…Life has great potentials in space, but the probability of present extraterrestrial life may be incomputable because of biological and ecological complexities. …”
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Earliest microbially mediated pyrite oxidation in ~3.4 billion-year-old sediments by Wacey, D, Saunders, M, Brasier, M, Kilburn, MR

“…These data extend the geological range of microbes capable of metabolising reduced Fe and/or S compounds back to the early Archean and indicate that pyrite-rich sedimentary rocks provide promising targets in the search for extraterrestrial life. © 2010 Elsevier B.V.…”

Detecting Proxima b's atmosphere with JWST targeting CO2 at 15 μm using a high-pass spectral filtering technique by Snellen, IAG, Désert, J-M, Waters, LBFM, Robinson, T, Meadows, V, van Dishoeck, EF, Brand l, BR, Henning, T, Bouwman, J, Lahuis, F, Min, M, Lovis, C, Dominik, C, Van Eylen, V, Sing, D, Anglada-Escudé, G, Birkby, JL, Brogi, M

“…<p>Exoplanet Proxima b will be an important laboratory for the search for extraterrestrial life for the decades ahead. Here, we discuss the prospects of detecting carbon dioxide at 15&nbsp;<em>&mu;</em>m using a spectral filtering technique with the Medium Resolution Spectrograph (MRS) mode of the Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (<em>JWST</em>). …”

Characterisation of exoplanet atmospheres using high-resolution spectroscopy by van Sluijs, L

“…The characterisation of exoplanet atmospheres is crucial to understanding planet formation, the exploration of extreme atmospheric physics, finding habitable worlds, and searching for extraterrestrial life, but challenged by the overwhelming star-to-exoplanet flux contrast. …”