Results 101 to 110 of about 8,849 (202)
Mars simulated exposure and the characteristic Raman biosignatures of amino acids and halophilic microbes [PDF]
, 2017 Though Raman bands of α-amino acids (AA) are well documented, often only the strongest intensity bands are quoted as identifiers (e.g. Jenkins et al., 2005; De Gelder et al., 2007; Zhu et al., 2011).
Gilmour, I. +5 more
core
Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.Abstract NASA's Curiosity rover has found widespread evidence of alteration in sedimentary rocks in Gale crater, Mars driven by interactions with fluids both before and after lithification (early and late diagenesis). Most notably, Curiosity observed distinctive color, chemical, and mineralogical changes interpreted as evidence of diagenesis at the ...
James T. Haber +2 more
wiley +1 more source
Frontiers in Astronomy and Space Sciences, 2020 Unraveling how long life can persist under extreme dryness and what kind of environmental extremes can be faced by dried microorganisms is relevant to understand Mars habitability and to search for life on planets with transient liquid water availability.
Claudia Fagliarone +5 more
doaj +1 more source
Questioning the Reliability of Methane Detections on Mars by the Curiosity Rover
Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.Abstract Over the past decade, the Tunable Laser Spectrometer (TLS) on NASA's Curiosity rover has reported several detections of methane on Mars, attracting attention due to the potential astrobiological implications of its presence. Here, we re‐analyze published TLS data, identifying issues in data robustness and reduction.
Sébastien Viscardy +2 more
wiley +1 more source
, 2020 Life has had a dramatic impact on the composition of Earth's atmosphere over time, which suggests that statistical studies of other inhabited planets' atmospheres could reveal how they co-evolve with life.
Apai, Dániel, Bixel, Alex
core +1 more source
Role of Synthetic Biofilms in Bed Evolution and the Formation of Sedimentary Structures
Geophysical Research Letters, Volume 52, Issue 6, 28 March 2025.Abstract Microbes are known to shape topographies; however, mechanisms of biofilm‐sediment interactions and the dynamic evolution of biofilm‐covered bedforms remain poorly understood. Here, we explore the effects of synthetic biofilms on the geometry and temporal evolution of underwater bedforms through flume experiments.
Willian R. Assis +2 more
wiley +1 more source
Fingerprinting Non-Terran Biosignatures [PDF]
Astrobiology, 2018 Most strategies for life detection rely upon finding features known to be associated with terran life, such as particular classes of molecules. But life may be vastly different on other planets and moons, particularly as we expand our efforts to explore ocean worlds like Europa and Enceladus.
Andrew D. Ellington +4 more
openaire +3 more sources
European Journal of Sport Science, Volume 25, Issue 3, March 2025.ABSTRACT This study aims to utilize male blood metabolite signatures for (i) distinguishing between healthy individuals and athletes, thereby optimizing the athlete screening process; and (ii) predicting athletic performance in 100, 200, and 400 m sprints, enhancing precompetition preparation and intervention strategies.
Jingfeng Chen, Yuhang Qian, Yuansheng Xu
wiley +1 more source
Geosciences, 2020 New images from Mars rover Curiosity display millimetric, elongate stick- like structures in the fluvio-lacustrine deposits of Vera Rubin Ridge, the depositional environment of which has been previously acknowledged as habitable.
Andrea Baucon +3 more
doaj +1 more source
Magnetic Resonance in Medicine, Volume 93, Issue 3, Page 942-960, March 2025.Abstract Purpose The complex signal decay during the transient FLASH MRI readout can lead to artifacts in magnitude and phase images. We show that target‐driven optimization of individual RF flip angles and phases can realize near‐ideal signal behavior and mitigate artifacts.
Simon Weinmüller +4 more
wiley +1 more source