Multi-technique characterization of iron reduction by an Antarctic Shewanella: an analog system for putative Martian biosignature identification [PDF]
Applied and Environmental MicrobiologyMicrobes from terrestrial extreme environments enable testing of biosignature production in conditions relevant to astrobiological targets. Mars, which was likely more conducive to life during early warmer and wetter epochs, has inspired missions that ...
Jacob M. C. Shaffer +9 more
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Biomarkers on the Icy Jovian Moons: Can Europa Also Provide Insights into Life’s Origin? [PDF]
LifeWithin the payloads of JUICE and Europa Clipper, there are instruments suitable for the search of specific biosignatures that can diagnose life tracks in two ways.
Julian Chela-Flores +2 more
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Energy-ordered resource stratification as an agnostic signature of life [PDF]
Nature CommunicationsThe search for extraterrestrial life hinges on identifying biosignatures, often focusing on gaseous metabolic byproducts as indicators. However, most such biosignatures require assuming specific metabolic processes.
Akshit Goyal, Mikhail Tikhonov
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Microbes from ambient-pressure analogues offer insights into possible life in Europa’s high-pressure subsurface ocean [PDF]
Frontiers in MicrobiologyUnder its thick ice layer, Europa contains a shielded liquid water ocean where habitable conditions may exist. To effectively assess the habitability of this environment and the implications on putative biosignature formation, it is essential to ...
Alvaro del Moral +5 more
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An astrobiological perspective on microbial biofilms: their importance for habitability and production of detectable and lasting biosignatures [PDF]
Applied and Environmental MicrobiologyThe search for life elsewhere in the universe has remained one of the main goals of astrobiological exploration. In this quest, extreme environments on Earth have served as analogs to study the potential habitability of Mars and icy moons, which include ...
Sarah Gonzalez-Henao, Matthew O. Schrenk
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Exploring Life Detection on Mars: Understanding Challenges in DNA Amplification in Martian Regolith Analogue After Fe Ion Irradiation [PDF]
LifeThe search for life beyond Earth currently hinges on the detection of biosignatures that are indicative of current or past life, with terrestrial life being the sole known example.
Alessia Cassaro +2 more
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Frontiers in Plant Science, 2023 IntroductionThe search for life on distant exoplanets is expected to rely on atmospheric biosignatures detection, such as oxygen of biological origin.
Mariano Battistuzzi +12 more
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Frontiers in Astronomy and Space Sciences, 2022 Past environments on Mars contained abundant water, suggesting certain regions may have been conducive to life as we know it and implying the potential for microbial inhabitants.
Carolynn M. Harris +7 more
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The Ground-Based BIOMEX Experiment Verification Tests for Life Detection on Mars
Life, 2021 The success of an astrobiological search for life campaign on Mars, or other planetary bodies in the Solar System, relies on the detectability of past or present microbial life traces, namely, biosignatures.
Claudia Pacelli +8 more
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Taphonomy of Biosignatures in Microbial Mats on Little Ambergris Cay, Turks and Caicos Islands
Frontiers in Earth Science, 2020 Microbial mats are taxonomically and metabolically diverse microbial ecosystems, with a characteristic layering that reflects vertical gradients in light and oxygen availability.
Maya L. Gomes +9 more
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