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Biomarkers on the Icy Jovian Moons: Can Europa Also Provide Insights into Life’s Origin? [PDF]

open access: yesLife
Within 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
doaj   +2 more sources

Multi-technique characterization of iron reduction by an Antarctic Shewanella: an analog system for putative Martian biosignature identification [PDF]

open access: yesApplied and Environmental Microbiology
Microbes 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
doaj   +2 more sources

Energy-ordered resource stratification as an agnostic signature of life [PDF]

open access: yesNature Communications
The 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
doaj   +2 more sources

Network-based integrative multi-omics approach reveals biosignatures specific to COVID-19 disease phases

open access: yesFrontiers in Molecular Biosciences
BackgroundCOVID-19 disease is characterized by a spectrum of disease phases (mild, moderate, and severe). Each disease phase is marked by changes in omics profiles with corresponding changes in the expression of features (biosignatures).
Francis E Agamah   +2 more
exaly   +3 more sources

Microbes from ambient-pressure analogues offer insights into possible life in Europa’s high-pressure subsurface ocean [PDF]

open access: yesFrontiers in Microbiology
Under 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
doaj   +2 more sources

An astrobiological perspective on microbial biofilms: their importance for habitability and production of detectable and lasting biosignatures [PDF]

open access: yesApplied and Environmental Microbiology
The 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
doaj   +2 more sources

Exploring Life Detection on Mars: Understanding Challenges in DNA Amplification in Martian Regolith Analogue After Fe Ion Irradiation [PDF]

open access: yesLife
The 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
doaj   +2 more sources

The Ground-Based BIOMEX Experiment Verification Tests for Life Detection on Mars

open access: yesLife, 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
doaj   +1 more source

Oxygenic photosynthetic responses of cyanobacteria exposed under an M-dwarf starlight simulator: Implications for exoplanet’s habitability

open access: yesFrontiers 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
doaj   +1 more source

Remote and in-Situ Characterization of Mars Analogs: Coupling Scales to Improve the Search for Microbial Signatures on Mars

open access: yesFrontiers 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
doaj   +1 more source

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