Biosignatures Search in Habitable Planets [PDF]
Galaxies, 2019 The search for life has had a new enthusiastic restart in the last two decades thanks to the large number of new worlds discovered. The about 4100 exoplanets found so far, show a large diversity of planets, from hot giants to rocky planets orbiting small
Riccardo Claudi, Eleonora Alei
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A BIOMASS-BASED MODEL TO ESTIMATE THE PLAUSIBILITY OF EXOPLANET BIOSIGNATURE GASES [PDF]
ApJ 2013, 775, 104, 2013 Biosignature gas detection is one of the ultimate future goals for exoplanet atmosphere studies. We have created a framework for linking biosignature gas detectability to biomass estimates, including atmospheric photochemistry and biological thermodynamics.
Sara Seager, William Bains, Renyu Hu
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Monomer abundance distribution patterns as a universal biosignature: Examples from terrestrial and digital life [PDF]
J. Molec. Evol.72:283-295, 2011, 2011 Organisms leave a distinctive chemical signature in their environment because they synthesize those molecules that maximize their fitness. As a result, the relative concentrations of related chemical monomers in life-bearing environmental samples reflect, in part, those compounds' adaptive utility.
Evan D. Dorn +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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Detectors and cooling technology for direct spectroscopic biosignature characterization [PDF]
, 2016 Direct spectroscopic biosignature characterization (hereafter "biosignature characterization") will be a major focus for future space observatories equipped with coronagraphs or starshades.
Canavan, Edgar R. +4 more
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The Oxygen Release Instrument: Space Mission Reactive Oxygen Species Measurements for Habitability Characterization, Biosignature Preservation Potential Assessment, and Evaluation of Human Health Hazards [PDF]
Life, 2019 We describe the design of an instrument, the OxR (for Oxygen Release), for the enzymatically specific and non-enzymatic detection and quantification of the reactive oxidant species (ROS), superoxide radicals (O2•−), and peroxides (O22−,
Christos D. Georgiou +5 more
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Biosignature surveys to exoplanet yields and beyond [PDF]
, 2020 Upcoming biosignature searches focus on indirect indicators to infer the presence of life on other worlds. Aside from just signaling the presence of life, however, some biosignatures can contain information about the state that a planet's biosphere has achieved.
McCullen Sandora, Joseph Silk
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Earth and Space ScienceFuture missions to icy ocean worlds (OW) such as Europa and Enceladus will evaluate the habitability and potential for biosignatures on these worlds. These missions will benefit from autonomous science and machine learning (ML) methods to process high ...
Lily A. Clough +5 more
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Journal of Raman Spectroscopy, Volume 53, Issue 12, Page 2068-2085, December 2022., 2022 A non‐destructive analytical methodology, based on Raman microscopy (single point and imaging), micro‐energy dispersive X‐ray fluorescence (μED‐XRF) imaging analysis, and scanning electron microscopy coupled to energy dispersive spectroscopy (SEM‐EDS), is suggested for a first analytical characterization for the Martian samples that will be taken to ...
Leire Coloma +7 more
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Comparing biosignatures in aged basalt glass from North Pond, Mid-Atlantic Ridge and the Louisville Seamount Trail, off New Zealand. [PDF]
PLoS ONE, 2018 Microbial life can leave various traces (or biosignatures) in rocks, including biotic alteration textures, biominerals, enrichments of certain elements, organic molecules, or remnants of DNA.
Andreas Türke +2 more
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