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• Origins of life: the possible and the actual.
  The questions of how life forms, whether life is an inevitable outcome and how diverse its presentation could be remain some of the most profound in science. Investigations into the origin of life confront key issues such as uncovering key constraints and univ…
  europepmc Ricard V. Solé, Christopher P. Kempes, Susan Stepney 2025 置信度 0.80 Presentation (obstetrics)Key (lock)Management scienceTheme (computing)Data science
• Extremophiles and Extremophilic Behaviour-New Insights and Perspectives.
  Extremophiles, throughout evolutionary time, have evolved a plethora of unique strategies to overcome hardships associated with the environments they are found in. Modifying their genome, showing a bias towards certain amino acids, redesigning their proteins, …
  europepmc George Angelakis, Chrysianna Psarologaki, Stergios Pirintsos, Kiriakos Kotzabasis 2024 置信度 0.80 ExtremophileBiologyComputational biologyAstrobiologyBiochemical engineering
• Elucidating the interplay between intracellular manganese-iron-ratio and radiotolerance across all domains of life.
  Exposure to natural or artificial ionizing radiation induces direct damage to intracellular macromolecules and promotes the formation of reactive oxygen species, which can further amplify cellular injury. Although many organisms tolerate high radiation doses, …
  europepmc 2026 置信度 0.80
• Stromatolite-like Structures Within Microbially Laminated Sandstones of the Paleoarchean Moodies Group, Barberton Greenstone Belt, South Africa.
  We report abundant small calcareous mounds associated with fossilized kerogenous microbial mats in tidal-facies sandstones of the predominantly siliciclastic Moodies Group ( ca. 3.22 Ga) of the Barberton Greenstone Belt (BGB), South Africa and Eswatini. Most o…
  europepmc 2023 置信度 0.80
• The Origin and Early Evolution of Life: Homochirality Emergence in Prebiotic Environments.
  Homochirality is one of the signatures of life. Numerous geological and prebiotic chemistry studies have proved that disordered soups containing small organic molecules, gases, liquids, and minerals (such as those containing phosphorous) yielded racemic mixtur…
  europepmc 2023 置信度 0.80
• Life on Venus?
  Venus is not generally at the forefront when considering extraterrestrial life. Yet, based on the physical similarities and proximity to Earth and with the little knowledge of its evolutionary history, there is a possibility that Venus may have hosted life in …
  europepmc S. S. Limaye 2025 置信度 0.80 VenusAstrobiologyAtmosphere of VenusAtmosphere (unit)Liquid water
• Recent production rates of cosmogenic nuclides in the igneous rocks of Jezero crater floor, Mars.
  The Perseverance rover has collected rock samples from the floor of Jezero crater, Mars, set to be returned to Earth through the Mars Sample Return (MSR) mission. These surface rocks are continuously bombarded by cosmic rays, resulting in the formation of cosm…
  europepmc 2025 置信度 0.80
• Nitrogen- and oxygen-rich organic material indicative of polymerization in pre-aqueous cryochemistry on Bennu's parent body.
  Nitrogen-containing organic compounds play key biological roles, and their identification in primitive astromaterials such as meteorites can shed light on the origin of life. However, meteorites are typically contaminated by uncontrolled exposure to Earth. Her…
  europepmc Scott A. Sandford, Z. Gainsforth, Michel Nuevo, Matthew A. Marcus 等 2025 置信度 0.80 MeteoriteChemistryPolymerizationAqueous solutionParent body
• Thermodynamic Constraints on the Citric Acid Cycle and Related Reactions in Ocean World Interiors.
  Icy ocean worlds in our solar system have attracted significant interest for their astrobiological and biogeochemical potential due to the predicted presence of global subsurface liquid water oceans, the presence of organics in Enceladus and Titan, and plausib…
  europepmc 2025 置信度 0.80
• Magmatic and thermally produced reactive phosphorus 3.2 billion years ago and its implications for early life.
  Reduced and polymerized phosphorus species may have been crucial for the origin and early evolution of life, as they are more reactive and soluble than phosphate. Thermal processes could have produced these phosphorus species; however, the underlying mechanism…
  europepmc 2025 置信度 0.80
• Boron as a Hypothetical Participant in the Prebiological Enantiomeric Enrichment.
  Boron, as borate (or boric acid), is known as a mediator of the synthesis of ribose, ribonucleosides, and ribonucleotides (precursors of RNA) under plausible prebiotic conditions. With regard to these phenomena, the potential participation of this chemical ele…
  europepmc 2023 置信度 0.80
• Connecting molecular biomarkers, mineralogical composition, and microbial diversity from Mars analog lava tubes.
  Lanzarote (Canary Islands, Spain) is one of the best terrestrial analogs to Martian volcanology. Particularly, Lanzarote lava tubes may offer access to recognizably preserved chemical and morphological biosignatures valuable for astrobiology. By combining micr…
  europepmc 2024 置信度 0.80
• Biological use of molybdenum and tungsten stems back to 3.4 billion years ago.
  The biological significance of the transition metal molybdenum (Mo) lies in its function at the catalytic center of several enzymes that drive a wide spectrum of redox reactions underlying global biogeochemical cycles, yet a paradox persists. While modern life…
  europepmc 2026 置信度 0.80
• In Situ Quantification of Carbonate Species Concentrations, pH, and pCO₂ in Calcite Fluid Inclusions Using Confocal Raman Spectroscopy.
  Carbonate minerals are globally distributed on the modern and ancient Earth and are abundant in terrestrial and marine depositional environments. Fluid inclusions hosted by calcite retain primary signatures of the source fluid geochemistry at the time of miner…
  europepmc 2024 置信度 0.80
• Mineral-facilitated aqueous synthesis of hydrogen cyanide from prebiotically abundant amino acids for chemical evolution.
  Recent advances in prebiotic chemistry suggest that hydrogen cyanide (HCN) serves as a fundamental precursor for nearly all essential biomolecules and protometabolic processes for life's emergence. Although prevailing models of endogenous cyanide production re…
  europepmc 2026 置信度 0.80
• A long-lived impact-generated hydrothermal system at the Chicxulub impact structure.
  Hydrothermal systems likely played an essential role in the origin of life, both on Earth and potentially on other planets. They form anywhere that heat and aqueous fluids interact, including within cooling hypervelocity impact craters. Longer periods of hydro…
  europepmc 2026 置信度 0.80
• Reduction of NAD and NMN on mineral surfaces with H<sub>2</sub> reveals a functional role for the AMP moiety in a prebiotic context.
  Many cofactors share a molecular structure - adenosine monophosphate (AMP) - that otherwise occurs in nucleic acids. The presence of AMP in cofactors has presented an evolutionary puzzle. Is it a biochemical 'handle' that allows proteins to bind the cofactor m…
  europepmc 2025 置信度 0.80
• Constraining the Rosalind Franklin Rover/Ma_MISS Instrument Capability in the Detection of Organics.
  The Mars Multispectral Imager for Subsurface Studies (Ma_MISS) instrument is a miniaturized visible and near-infrared spectrometer that is integrated into the drilling system of the ESA Rosalind Franklin rover, which is devoted to subsurface exploration on Mar…
  europepmc 2023 置信度 0.80
• Three eruptions at the Fagradalsfjall Volcano in Iceland show rapid and predictable microbial community establishment.
  How natural environments transition from uninhabited to inhabited is an incompletely understood question in ecology. We leverage the 2021-2023 Fagradalsfjall eruptions in Iceland as a natural experiment, tracking microbial colonization on the new lava over thr…
  europepmc 2025 置信度 0.80
• Thermal Stability of (Bio)Carbonates: A Potential Signature for Detecting Life on Mars?
  The environmental conditions that prevail on the surface of Mars ( i.e., high levels of radiation and oxidants) are not favorable for the long-term preservation of organic compounds on which all strategies for finding life on Mars have been based to date. Sinc…
  europepmc 2023 置信度 0.80
• Probing the habitability of potential sulfuric acid rich subsurface lakes in Europa's ice shell via <i>Saci</i>/STIV integrated models.
  Experimentally modeling the habitability of extreme ocean world conditions, such as those on Jupiter's moon: Europa, would benefit from integrated microbe-virus model studies to provide both a microbial model and a virus capable of nutrient cycling. This work …
  europepmc 2026 置信度 0.80
• Redox-driven mineral and organic associations in Jezero Crater, Mars.
  The Perseverance rover has explored and sampled igneous and sedimentary rocks within Jezero Crater to characterize early Martian geological processes and habitability and search for potential biosignatures1–7. Upon entering Neretva Vallis, on Jezero Crater’s w…
  europepmc J. A. Hurowitz, Michael M. Tice, Abigail C. Allwood, Morgan L. Cable 等 2025 置信度 0.80 PetrographyGeochemistryGeologyMars Exploration ProgramMeteorite
• Advances in Extremophile Research: Biotechnological Applications through Isolation and Identification Techniques.
  Extremophiles, organisms thriving in extreme environments such as hot springs, deep-sea hydrothermal vents, and hypersaline ecosystems, have garnered significant attention due to their remarkable adaptability and biotechnological potential. This review present…
  europepmc Giovanni Gallo, Martina Aulitto 2024 置信度 0.80 ExtremophileIdentification (biology)Isolation (microbiology)Computational biologyBiology
• <i>Metallosphaera sedula</i> bifurcates into two sizes when it is cultured mixotrophically on soluble iron.
  Metallosphaera sedula is a thermoacidophilic archaeon that obtains all of its energy for growth from aerobic respiration and oxidative phosphorylation at the expense of selected organic and inorganic sources of electrons. Initial velocities for the oxidation o…
  europepmc 2025 置信度 0.80
• Exploring organic compound preservation through long-term in situ experiments in the Atacama desert and the relevance for Mars.
  The preservation of organic compounds under extreme environmental conditions remains a critical challenge for both terrestrial ecology applications on Earth and astrobiology. In a novel long-term field experiment over 8 months, we exposed biomolecules and a mo…
  europepmc 2025 置信度 0.80
• Prokaryotic Community Structure, Abundances, and Potential Ecological Functions in a Mars Analog Salt Lake.
  Barkol Lake, situated northeast of the Tianshan Mountains, Xinjiang, is a hypersaline lake with abundant sulfate and chloride minerals, which can be a potential analog for microbial saline paleolakes on Mars. The lake water, sediments, and surrounding soils of…
  europepmc 2023 置信度 0.80
• Understanding Titan's Prebiotic Chemistry: Synthesizing Amino Acids Through Aminonitrile Alkaline Hydrolysis.
  High Resolution Image Download MS PowerPoint Slide Titan is an ocean world with a plethora of organic material in its atmosphere and on its surface, making it an intriguing location in the search for habitable environments beyond Earth. Settled aerosols will m…
  europepmc K. Farnsworth, Hannah L. McLain, Angela H. Chung, M. G. Trainer 2024 置信度 0.80 Titan (rocket family)ChemistryAmino acidHydrolysisPrebiotic
• Synthesis of Amides from Amines and Esters Under Hydrothermal Conditions.
  Organic synthesis under hydrothermal conditions provides a green and environmentally friendly method that can minimize waste and avoid toxic byproducts. In this study, we investigate ester aminolysis in hydrothermal water at 250°C and P sat . Among the studied…
  europepmc 2026 置信度 0.80
• Evaluating Mineral Lattices as Evolutionary Proxies for Metalloprotein Evolution.
  Protein coordinated iron-sulfur clusters drive electron flow within metabolic pathways for organisms throughout the tree of life. It is not known how iron-sulfur clusters were first incorporated into proteins. Structural analogies to iron-sulfide minerals pres…
  europepmc 2022 置信度 0.80
• Thermal Decomposition and Prebiotic Formation of Adenosine Phosphates in Simulated Early-Earth Evaporative Settings.
  Adenosine nucleotides and polyphosphates play a significant role in biochemistry, from participating in the formation of genetic material to serving as metabolic energy currency. In this study, we examine the stability and decomposition rates of adenosine phos…
  europepmc 2025 置信度 0.80
• Strong nickel enrichment co-located with redox-organic interactions in Neretva Vallis, Mars.
  In 2024, NASA's Perseverance rover explored Neretva Vallis, an ancient river channel that once transported water into Jezero crater. There, the rover encountered Mg-poor mudstones with diverse alteration features. In 32 rock targets in Neretva Vallis, nickel (…
  europepmc 2026 置信度 0.80
• Aquatic Ferrous Solutions of Prebiotic Mineral Salts as Strong UV Protectants and Possible Loci of Life Origin.
  Liposomes are lipid-bilayer vesicles that spontaneously self-assemble from fatty acids (or other amphiphiles) in water by encapsulating surrounding aqueous media. After British scientist Alec Bangham described this phenomenon in the early 1960s, they became a …
  europepmc 2023 置信度 0.80
• Tricks of Nature From the Ancient Earth and Early Mars: Chemical Gardens Generate Biomorphs With High Preservation Potential.
  Observations of morphology are commonly used to evaluate the biogenicity of terrestrial microfossils and could constitute a crucial line of evidence for extraterrestrial life-detection missions in the future. However, evaluating the origin of morphological fea…
  pubmed Hirsch S, McMahon S, Najorka J, Sephton MA 2026 Mar-Apr 置信度 0.82
• The Lipidome of a Mars Analog Poly-Extreme Community in Atacama Halite Endolith: Chemotaxonomy, Lipid Adaptation, and Implications for the Search for Extraplanetary Biosignatures.
  We analyzed the lipidome of the endolithic community in halite nodules from Salar Grande in the hyperarid Atacama Desert, which is considered an analog for martian subsurface environments. We tested the utility of complex functionalized lipids to trace possibl…
  pubmed Kusch S, Schubotz F, Sepúlveda J, Bauersachs T 2026 May 置信度 0.82
• Geochemical Complexity in Terrestrial Hot Spring Fields: Implications for the Origin of Life.
  Prebiotic chemistry for the origin of life requires a high degree of chemical and mineralogical complexity with the potential for multiple reactions under differing physico-chemical conditions. This includes processes that can promote the condensation reaction…
  pubmed Van Kranendonk MJ, Penrose LK, Havig J, Rowe MC 等 2026 Apr 置信度 0.82
• Mineral-facilitated aqueous synthesis of hydrogen cyanide from prebiotically abundant amino acids for chemical evolution.
  Recent advances in prebiotic chemistry suggest that hydrogen cyanide (HCN) serves as a fundamental precursor for nearly all essential biomolecules and protometabolic processes for life's emergence. Although prevailing models of endogenous cyanide production re…
  pubmed Yang Z, Li Y, Kitadai N, Yamamoto M 等 2026 Mar 31 置信度 0.82
• From Space Dust to Protocells: Micrometeorites in Early Cellular Evolution.
  Solid surfaces have long been considered catalysts in prebiotic chemistry, yet their physical energy has rarely been explored as a driver of protocell assembly. This opinion article highlights recent experimental advances demonstrating that oxide minerals, Had…
  pubmed Gözen İ 2026 Apr 置信度 0.82
• A Modular 3D-Printed Design to Investigate Prebiotic Chemical Systems in Hot Spring Pools.
  The emergence of protocells, membranous compartments with encapsulated genetic material, was a crucial step in life's origin and evolution. The hot spring hypothesis for the origin of life suggests that protocells with the capacity to encapsulate organic matte…
  pubmed Siddique A, Chauhan D, Dutton A, Reddy K 等 2026 Apr 置信度 0.82
• Biosignature Detection and Preservation in Lake Salda Microbialites Under Simulated Martian Conditions.
  The alteration of martian deposits under extreme surface conditions remains a key challenge for their mineral-organic interpretation and paleoenvironmental reconstruction. This study investigates the spectral detection and alteration of mineral-organic signatu…
  pubmed Ballard CJ, Preston LJ, Dartnell LR, Mateo-Marti E 等 2026 Feb 置信度 0.82
• Cold-Water CO(2) Geysers as Ocean World Plume Analogs: Investigation of Habitability Indicators in Crystal and Champagne Geysers Pre- and Posteruption.
  Ocean world plumes at Enceladus, Triton, and possibly Europa are astrobiologically significant. These active processes may transport fresh material from potentially habitable subsurface environments to the surface and atmosphere/exosphere, where they can be ac…
  pubmed Cable ML, Kirby EJ, Musto IA, Glein CR 等 2026 Feb 置信度 0.82
• Fungal-Mineral Interaction: Astrobiology Insights from Iron-Rich Mineral Alteration by an Extremophile Black Fungus.
  Iron-rich minerals, such as hematite (α-Fe 2 O 3 ), are prominent constituents of the Martian surface; they are considered to be potential indicators of past aqueous activity and habitability. This study investigated the interaction between the extremoph…
  pubmed Dos Santos A, Molodon F, Schultz J, P M da Silva Alves MA 等 2026 Jan 26 置信度 0.82
• The Microbial Inhabitants of the Corona Lava Tube: Astrobiological Insights from a Mars Analog Environment.
  Lava tubes are recognized as strategic targets in the search for life on Mars. The Corona Lava Tube System in Lanzarote serves as a terrestrial analog for martian subsurface environments and an astronaut training site for the European Space Agency's (ESA) Plan…
  pubmed Miller AZ, González-Pimentel JL, De la Rosa JM, Gutierrez-Patricio S 等 2026 Jan 置信度 0.82
• Stromatolites from Lake Ashenge, Ethiopia: Controls on Biosignature Preservation in Extreme Alkaline Environments.
  A closed-basin alkaline lake on the basaltic plateau of Tigray, Ethiopia, Lake Ashenge hosts living and fossil stromatolites composed primarily of magnesium-bearing calcite. In the present study, the morphogenetic and preservational processes that underlie str…
  pubmed Cardoso Dorneles VA, Hickman-Lewis K, Haileselasie TH, Hagos M 等 2026 Jan 置信度 0.82
• Biotic and Abiotic Signatures in Sulfate- and Carbonate-Rich Hypersaline Lakes as Analogs for Mars.
  Lacustrine sulfate- and carbonate-rich deposits have been detected at Jezero and Gale craters on Mars. The preservation of potential biosignatures in these sites may depend on the nature of precipitated salts and the early diagenetic history of in situ mineral…
  pubmed Kalucha H, Johnson BW, Ingalls M, Asimow PD 等 2026 Jan 置信度 0.82
• Nitrogen- and oxygen-rich organic material indicative of polymerization in pre-aqueous cryochemistry on Bennu's parent body.
  Nitrogen-containing organic compounds play key biological roles, and their identification in primitive astromaterials such as meteorites can shed light on the origin of life. However, meteorites are typically contaminated by uncontrolled exposure to Earth. Her…
  pubmed Sandford SA, Gainsforth Z, Nuevo M, Marcus MA 等 2025 置信度 0.82
• Organic geochemical evidence for life in Archean rocks identified by pyrolysis-GC-MS and supervised machine learning.
  Throughout Earth's history, organic molecules from both abiogenic and biogenic sources have been buried in sedimentary rocks. Most of these organic molecules have been significantly altered by geologic processes through deep time. Nonetheless, the nature and d…
  pubmed Wong ML, Prabhu A, Alexander CO, Cleaves HJ 2nd 等 2025 Nov 25 置信度 0.82
• Magmatic and thermally produced reactive phosphorus 3.2 billion years ago and its implications for early life.
  Reduced and polymerized phosphorus species may have been crucial for the origin and early evolution of life, as they are more reactive and soluble than phosphate. Thermal processes could have produced these phosphorus species; however, the underlying mechanism…
  pubmed Baidya AS, Gehringer MM, Savaniu C, Heubeck C 等 2025 置信度 0.82
• Subzero cell division, respiration, and genomic traits of cryophilic Arthrobacter agilis Ant-EH-1 isolated from cold-arid Antarctic mineral soils.
  Arthrobacter are commonly isolated from cold soil environments globally, including those that regularly reach sub-freezing temperatures, suggesting that Arthrobacter have significant potential for growth and activity under temperature and stress extremes. Arth…
  pubmed Wood C, Magnuson E, Harrop E, Trembath-Reichert E 等 2025 置信度 0.82
• Kerogen Detection in Neoarchean and Eocene Microbialites via Deep UV Raman and Fluorescence Spectroscopy Using a Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals Analog Instrument.
  To date, the Mars 2020 mission's deep-UV Raman and fluorescence instrument (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals [SHERLOC]) has reported potential Raman detections of macromolecular carbon in data collected on …
  pubmed Corpolongo A, Czaja AD, Jakubek RS, Fries MD 等 2025 Nov 置信度 0.82
• Geochemical Mobility of Elements in Antarctic Environments Affected by CO(2)-Rich Hydrothermal Fluids: Astrobiological Implications.
  Hydrothermal systems are widespread in our solar system. Identification of alteration mineral assemblages on Mars and potentially in ocean worlds such as Enceladus suggests the existence of extensive hydrothermal fluid-igneous rock interactions of astrobiologi…
  pubmed de Dios-Cubillas A, Prieto-Ballesteros O, Carrizo D, López I 等 2025 Nov 置信度 0.82
• Evaporitic Preservation of Modern Carotenoid Biomarkers and Halophilic Microorganisms in Mars Analog Hypersaline Environments.
  Our investigation in Mars-relevant terrestrial environments where biological material is entombed within rapidly precipitated evaporite crystals has given us the ability to evaluate the preservation potential of a hypersaline brine system in advance of interro…
  pubmed Perl SM, Baxter BK, Celestian AJ, Tasoff P 等 2025 Nov 置信度 0.82
• Reduction of NAD and NMN on mineral surfaces with H(2) reveals a functional role for the AMP moiety in a prebiotic context.
  Many cofactors share a molecular structure - adenosine monophosphate (AMP) - that otherwise occurs in nucleic acids. The presence of AMP in cofactors has presented an evolutionary puzzle. Is it a biochemical 'handle' that allows proteins to bind the cofactor m…
  pubmed Henriques Pereira DP, Xie X, Stewart SV, Subrati Z 等 2025 Oct 30 置信度 0.82
• Metabolic controls on the carbon isotope fractionations of bacterial fermentation.
  Microbial fermentation facilitates the initial breakdown of organic matter into small molecules and is thought to be the rate-limiting step of anoxic organic mineralization. However, fermentation is understudied in modern and ancient biogeochemistry due to a l…
  pubmed Mueller EP, Heuer VB, Leadbetter JR, Hinrichs KU 等 2025 Oct 14 置信度 0.82
• Redox-driven mineral and organic associations in Jezero Crater, Mars.
  The Perseverance rover has explored and sampled igneous and sedimentary rocks within Jezero Crater to characterize early Martian geological processes and habitability and search for potential biosignatures 1-7 . Upon entering Neretva Vallis, on Jezero Crater's…
  pubmed Hurowitz JA, Tice MM, Allwood AC, Cable ML 等 2025 Sep 置信度 0.82
• Subaerial oxidative uranium mobilization at the culmination of the Great Oxidation Event.
  Redox-sensitive elements figure prominently in studies of the evolution of Earth's surface redox state, including the first major rise in atmospheric O 2 , the Paleoproterozoic Great Oxidation Event. Most Precambrian rocks endured multistage tectonothermal his…
  pubmed Bauer AM, Li W, Rybacki KS, Roden EE 等 2025 Sep 9 置信度 0.82
• Mid-Devonian ocean oxygenation enabled the expansion of animals into deeper-water habitats.
  The oxygenation history of Earth's surface environments has had a profound influence on the ecology and evolution of metazoan life. It was traditionally thought that the Neoproterozoic Oxygenation Event enabled the origin of animals in marine environments, fol…
  pubmed Bubphamanee K, Kipp MA, Meixnerová J, Stüeken EE 等 2025 Sep 2 置信度 0.82
• The Existing Frameworks of Delivery of Major Volatiles and the Feasibility of Mars-Mass Planetary Embryos as the Major Volatile Contributors to Bulk Silicate Earth.
  The presence of major volatile elements-carbon, hydrogen, nitrogen, and sulfur-on Earth is critical for establishing life. The origin of these life-essential volatile elements (LEVEs) on Earth has been studied for many years. Here, we present a brief compilati…
  pubmed Pathak D, Dasgupta R 2026 Jul-Aug 置信度 0.82
• Mellitic Acid as a Stable Abiotic Precursor for Liquid-Liquid Phase Separation: An RNA-Independent Pathway for Prebiotic Compartmentalization.
  Apart from playing the well-recognized roles in the self-assembly of intracellular machinery liquid-liquid phase separation (LLPS) constitutes a hypothetical, yet compelling scenario for prebiotic compartmentalization. One challenge facing this idea is the abs…
  pubmed Dec R, Jaworek MW, Wacławska M, Dzwolak W 等 2025 Sep 16 置信度 0.82
• Stable Isotope Abundance Patterns as Potential Biosignatures.
  The abundance and distribution of stable isotopes of an element in a substance can provide insights regarding the source, synthesis, and environmental history of that substance. Because isotopic discrimination during chemical reactions can be unique to specifi…
  pubmed Des Marais DJ, Caro T, Dhingra R, Fox AC 等 2025 Aug 置信度 0.82
• Mineral Microbiomes Entombed in Great Salt Lake Gypsum: Considerations for Martian Evaporites.
  Modern Great Salt Lake, UT, United States, is what remains after the extensive evaporation of Pleistocene Lake Bonneville, which makes this site an appropriate analog to ancient martian lacustrine systems. Today, evaporite minerals surround the lake, including…
  pubmed Martinez-Koury P, Baxter J, Keller DM, Jagniecki EA 等 2025 Aug 置信度 0.82
• Characterization of ferric hydroxysulfate on Mars and implications of the geochemical environment supporting its formation.
  Sulfate minerals are significant components of the martian surface and provide clues about the martian geochemical environment. One unusual Fe-sulfate phase has been intriguing Mars scientists for over a decade due to its unique spectral bands that are distinc…
  pubmed Bishop JL, Meusburger JM, Weitz CM, Parente M 等 2025 Aug 5 置信度 0.82
• Crystal Habits as Potential Biosignatures.
  Our understanding of crystalline structures within terrestrial planetary analog environments can shed light on how these features can be interpreted on rocky planets and icy moons in our solar system. The ability to distinguish biogenic and abiotic components …
  pubmed Perl SM, Murphy AE, Govinda Raj C, Santos SC 等 2025 Aug 置信度 0.82
• Multi-technique characterization of iron reduction by an Antarctic Shewanella: an analog system for putative Martian biosignature identification.
  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 search f…
  pubmed Shaffer JMC, Sklute EC, Samples RM, Giddings L-A 等 2025 Aug 20 置信度 0.82
• Structural Biosignatures-A Category of Potential Biosignatures in the Life Detection Knowledge Base.
  The Life Detection Knowledge Base (LDKB) is part of the Life Detection Forum suite of web tools developed for life detection mission planners. This article details the development of one of its categories of biosignatures, the Structure category. The Structure…
  pubmed Shkolyar S, Bebout L, Blank JG, Cady SL 等 2025 Jul 置信度 0.82
• Microbial diversity of coastal microbial mats formations in karstic habitats from the Yucatan Peninsula, Mexico.
  In this study, we report for the first time an exploration of the physicochemical characteristics and the prokaryotic diversity of three different types of microbial mats from karstic habitats located in Sisal, Progreso and Ría Lagartos, in the Yucatan Pe…
  pubmed Cadena S, Teutli-Hernández C, Herrera-Silveira JA, Aguirre-Macedo ML 等 2025 置信度 0.82
• Carbonates identified by the Curiosity rover indicate a carbon cycle operated on ancient Mars.
  Ancient Mars had surface liquid water and a dense carbon dioxide (CO 2 )-rich atmosphere. Such an atmosphere would interact with crustal rocks, potentially leaving a mineralogical record of its presence. We analyzed the composition of an 89-meter stratigraphic…
  pubmed Tutolo BM, Hausrath EM, Kite ES, Rampe EB 等 2025 Apr 18 置信度 0.82
• Raman Spectroscopy as a Tool to Measure Silanol as Evidence of Water-Rock Interactions for Astrobiological Exploration.
  Because a range of silica minerals can precipitate from water, the analysis of silica mineral phases is important for astrobiological exploration. In this context, poorly crystalline opaline minerals that contain intracrystalline water are commonly accepted in…
  pubmed Tsukada Y, Bowden SA 2025 May 置信度 0.82
• Biomarker Preservation in Antarctic Sandstones after Prolonged Space Exposure Outside the International Space Station During the ESA EXPOSE-E Lichens and Fungi Experiment.
  A primary aim of current and future space exploration missions is the detection and identification of chemical and biological indicators of life, namely biomarkers, on Mars. The Mars Sample Return NASA-ESA program will bring to Earth samples of martian soil, a…
  pubmed Cassaro A, Pacelli C, Fanelli G, Baqué M 等 2025 May 置信度 0.82
• Traces of Bacterial Contribution to Calcite Weathering Detected by Statistical Characterizations of Surface Microtopography.
  There is a crucial need to identify reliable imprints of microbe-mineral interactions to quantify the contribution of microorganisms to chemical weathering and detect traces of life in the geological record. Yet conventional methods based on qualitative descri…
  pubmed Stigliano L, Benzerara K, Ackerer P, Menguy N 等 2025 Apr 置信度 0.82
• Evaluating Serpentinization as a Source of Phosphite to Microbial Communities in Hydrothermal Vents.
  Previous studies have documented the presence of phosphite, a reduced and highly soluble form of phosphorus, in serpentinites, which has led to the hypothesis that serpentinizing hydrothermal vents could have been an important source of bioavailable phosphorus…
  pubmed Boden JS, Som SM, Brazelton WJ, Anderson RE 等 2025 Mar-Apr 置信度 0.82
• Experimental Mineralisation of a Filamentous Hydrogenotrophic Methanogen in Carbonate, Phosphate, and Silicate.
  Methanogenic archaea were likely among the earliest organisms to populate the Earth, perhaps contributing to the Archaean greenhouse effect; they are also widely discussed as analogues to any potential life on Mars. However, fossil evidence of archaea has been…
  pubmed Huld S, McMahon S, Willman S, Neubeck A 2025 Mar-Apr 置信度 0.82
• Recovery of Lipid Biomarkers in Hot Spring Digitate Silica Sinter as Analogs for Potential Biosignatures on Mars: Results from Laboratory and Flight-Like Experiments.
  Digitate siliceous sinter deposits are common in geothermal environments. They form via evaporation and precipitation of cooling silica-rich fluids and passive microbial templating. Increasing interest in these "finger-like" microstromatolitic sinters is relat…
  pubmed Millan M, Campbell KA, Sriaporn C, Handley KM 等 2025 Mar 置信度 0.82
• Exploring Forsterite Surface Catalysis in HCN Polymerization: Computational Insights for Astrobiology and Prebiotic Chemistry.
  Understanding the catalytic role of cosmic mineral surfaces is crucial for elucidating the chemical evolution needed for the emergence of life on Earth and other planetary systems. In this study, the catalytic role of silicate forsterite (Mg 2 SiO 4 ) surfaces…
  pubmed Bancone N, Pantaleone S, Ugliengo P, Rimola A 等 2025 Feb 20 置信度 0.82
• Understanding Sulfate Stability on Mars: A Thermo-Raman Spectroscopy Study.
  This work examines the impact of high temperatures from celestial shock events on the stability of sulfates found on Mars (gypsum) and those expected to be present (syngenite and görgeyite). Raman spectroscopy, a cutting-edge technique in space exploratio…
  pubmed Huidobro J, Aramendia J, García-Florentino C, Coloma L 等 2025 Mar 置信度 0.82
• Photochemical Evolution of Alanine in Association with the Martian Soil Analog Montmorillonite: Insights Derived from Experiments Conducted on the International Space Station.
  The Photochemistry on the Space Station (PSS) experiment was part of the European Space Agency's EXPOSE-R2 mission and was conducted on the International Space Station from 2014 to 2016. The PSS experiment investigated the properties of montmorillonite clay as…
  pubmed Wipf S, Mabey P, Urso RG, Wolf S 等 2025 Feb 置信度 0.82
• Production of Organic Precursors via Meteoritic Impacts and Its Implications for Prebiotic Inventory of Early Planetary Surfaces.
  Meteoritic impacts on planetary surfaces deliver a significant amount of energy that can produce prebiotic organic compounds such as cyanides, which may be a key step to the formation of biomolecules. To study the chemical processes of impact-induced organic s…
  pubmed Farcy B, Ni Z, Arevalo R Jr, Eller M 等 2025 Jan 置信度 0.82
• Understanding Titan's Prebiotic Chemistry: Synthesizing Amino Acids Through Aminonitrile Alkaline Hydrolysis.
  Titan is an ocean world with a plethora of organic material in its atmosphere and on its surface, making it an intriguing location in the search for habitable environments beyond Earth. Settled aerosols will mix with transient surface melts following cryovolca…
  pubmed Farnsworth KK, McLain HL, Chung A, Trainer MG 2024 Dec 19 置信度 0.82
• Mesoarchean Microbial Cd, Ba, and Ni Cycling: Evidence for Photosynthesis in Pongola Group Stromatolites through Novel Stable Isotopes and High-Resolution Trace Element Maps.
  Nontraditional stable isotopes of bioactive metals emerged as novel proxies for reconstructing the biogeochemical cycling of metals, which serve as cofactors in major metabolic pathways. The fractionation of metal isotopes between ambient fluid and microorgani…
  pubmed Hohl SV, Lv Y, Lin YB, Zhang Y 等 2024 Dec 置信度 0.82
• Prebiotic Nucleoside Phosphorylation in a Simulated Deep-Sea Supercritical Carbon Dioxide-Water Two-Phase Environment.
  Prebiotic synthesis of complex organic molecules in water-rich environments has been a long-standing challenge. In the modern deep sea, emission of liquid CO 2 has been observed in multiple locations, which indicates the existence of benthic CO 2 pools. Recent…
  pubmed Tagawa S, Hatami R, Morino K, Terazawa S 等 2024 Dec 置信度 0.82
• Glycine synthesis from nitrate and glyoxylate mediated by ferroan brucite: An integrated pathway for prebiotic amine synthesis.
  Amino acids are present in all known life, so identifying the environmental conditions under which they can be synthesized constrains where life on Earth might have formed and where life might be found on other planetary bodies. All known abiotic amino acid sy…
  pubmed Chimiak L, Hara E, Sessions A, Templeton AS 2024 Nov 5 置信度 0.82
• Carotenoids dispersed in gypsum rock as a result of algae adaptation to the extreme conditions of the Atacama Desert.
  The high-altitude pre-Andean region of the Atacama Desert is characterized by its stark volcanic rock formations and unique hydrothermal gypsum outcrops (gypcrete) that it hosts. This study delves into the biomolecular composition of the endolithic phototrophi…
  pubmed Vítek P, Ascaso C, Artieda O, Wierzchos J 2024 Oct 13 置信度 0.82
• Subsurface Microbial Colonization at Mineral-Filled Veins in 2-Billion-Year-Old Mafic Rock from the Bushveld Igneous Complex, South Africa.
  Recent advances in subsurface microbiology have demonstrated the habitability of multi-million-year-old igneous rocks, despite the scarce energy supply from rock-water interactions. Given the minimal evolution coupled with exceedingly slow metabolic rates in s…
  pubmed Suzuki Y, Webb SJ, Kouduka M, Kobayashi H 等 2024 Oct 2 置信度 0.82
• In Situ Quantification of Carbonate Species Concentrations, pH, and pCO(2) in Calcite Fluid Inclusions Using Confocal Raman Spectroscopy.
  Carbonate minerals are globally distributed on the modern and ancient Earth and are abundant in terrestrial and marine depositional environments. Fluid inclusions hosted by calcite retain primary signatures of the source fluid geochemistry at the time of miner…
  pubmed Hudgins MN, Knobbe TK, Hubbard J, Steele A 等 2024 Oct 置信度 0.82
• Microbial colonization of gypsum: from the fossil record to the present day.
  Microorganisms inhabiting gypsum have been observed in environments that differ greatly in water availability. Gypsum colonized by microorganisms, including cyanobacteria, eukaryotic algae, and diverse heterotrophic communities, occurs in hot, arid or even hyp…
  pubmed Jehlička J, Oren A, Vítek P, Wierzchos J 2024 置信度 0.82
• Understanding the Role of Layered Minerals in the Emergence and Preservation of Proto-Proteins and Detection of Traces of Early Life.
  The origin of life remains one of the most profound mysteries in science. Over millennia, theories have evolved, yet the question persists: How did life emerge from inanimate matter? At its core, the study of life's origin offers insights into our place in the…
  pubmed Stewart SV, Erastova V 2024 Sep 3 置信度 0.82
• Unveiling Challenging Microbial Fossil Biosignatures from Rio Tinto with Micro-to-Nanoscale Chemical and Ultrastructural Imaging.
  Understanding the nature and preservation of microbial traces in extreme environments is crucial for reconstructing Earth's early biosphere and for the search for life on other planets or moons. At Rio Tinto, southwestern Spain, ferric oxide and sulfate deposi…
  pubmed Maldanis L, Fernandez-Remolar D, Lemelle L, Knoll AH 等 2024 Jul 置信度 0.82
• Microbial Ecology of an Arctic Travertine Geothermal Spring: Implications for Biosignature Preservation and Astrobiology.
  Jotun springs in Svalbard, Norway, is a rare warm environment in the Arctic that actively forms travertine. In this study, we assessed the microbial ecology of Jotun's active (aquatic) spring and dry spring transects. We evaluated the microbial preservation po…
  pubmed Ugwuanyi IR, Steele A, Glamoclija M 2024 Jul 置信度 0.82
• Pyritic stromatolites from the Paleoarchean Dresser Formation, Pilbara Craton: Resolving biogenicity and hydrothermally influenced ecosystem dynamics.
  This study investigates the paleobiological significance of pyritic stromatolites from the 3.48 billion-year-old Dresser Formation, Pilbara Craton. By combining paleoenvironmental analyses with observations from well-preserved stromatolites in newly obtained d…
  pubmed Baumgartner RJ, Van Kranendonk MJ, Caruso S, Campbell KA 等 2024 Jul-Aug 置信度 0.82
• Variable and Large Losses of Diagnostic Biomarkers After Simulated Cosmic Radiation Exposure in Clay- and Carbonate-Rich Mars Analog Samples.
  Mars has been exposed to ionizing radiation for several billion years, and as part of the search for life on the Red Planet, it is crucial to understand the impact of radiation on biosignature preservation. Several NASA and ESA missions are looking for evidenc…
  pubmed Roussel A, McAdam AC, Pavlov AA, Knudson CA 等 2024 Jul 置信度 0.82
• Siderite and vivianite as energy sources for the extreme acidophilic bacterium Acidithiobacillus ferrooxidans in the context of mars habitability.
  Past and present habitability of Mars have been intensely studied in the context of the search for signals of life. Despite the harsh conditions observed today on the planet, some ancient Mars environments could have harbored specific characteristics able to m…
  pubmed Silva GG, Vincenzi RA, de Araujo GG, Venceslau SJS 等 2024 Jun 27 置信度 0.82
• Ultraviolet Resistance of Microorganisms Isolated from Uranium-Rich Minerals from Perus, Brazil.
  The district of Perus, located in the city of São Paulo, Brazil, is renowned for its weathered granitic-pegmatitic masses, which harbor a significant number of uraniferous minerals that contribute to ionizing radiation levels up to 20 times higher than th…
  pubmed Poletto B, Silva GG, Souza Ramos de Carvalho AC, Vincenzi RA 等 2024 Aug 置信度 0.82
• Thresholds of Temperature and Time for Mars Sample Return: Final Report of the Mars Sample Return Temperature-Time Tiger Team.
  pubmed Sephton MA, Freeman K, Hays L, Thiessen F 等 2024 May 置信度 0.82
• Investigating Microbial Biosignatures in Aeolian Environments Using Micro-X-Ray: Simulation of PIXL Instrument Analyses at Jezero Crater Onboard the Perseverance Mars 2020 Rover.
  Assessing the past habitability of Mars and searching for evidence of ancient life at Jezero crater via the Perseverance rover are the key objectives of NASA's Mars 2020 mission. Onboard the rover, PIXL (Planetary Instrument for X-ray Lithochemistry) is one of…
  pubmed Nachon M, Ewing RC, Tice MM, Williford B 等 2024 May 置信度 0.82
• Martian microbes research and lessons learnt for forensic science.
  A new method for looking for life outside the Earth is used as an example to demonstrate how ways of presenting complex scientific concepts to the general public, used in planetary science, could be used in forensic science. The work led to a pared down, pract…
  pubmed Coleman M 2024 May 置信度 0.82
• Origin and modern microbial ecology of secondary mineral deposits in Lehman Caves, Great Basin National Park, NV, USA.
  Lehman Caves is an extensively decorated high desert cave that represents one of the main tourist attractions in Great Basin National Park, Nevada. Although traditionally considered a water table cave, recent studies identified abundant speleogenetic features …
  pubmed Havlena ZE, Hose LD, DuChene HR, Baker GM 等 2024 May-Jun 置信度 0.82
• Association of Acidotolerant Cyanobacteria to Microbial Mats below pH 1 in Acidic Mineral Precipitates in Río Tinto River in Spain.
  This report describes acidic microbial mats containing cyanobacteria that are strongly associated to precipitated minerals in the source area of Río Tinto. Río Tinto (Huelva, Southwestern Spain) is an extreme acidic environment where iron and sulfur …
  pubmed Gómez F, Rodríguez N, Rodríguez-Manfredi JA, Escudero C 等 2024 Apr 19 置信度 0.82
• Undecanoic Acid and L-Phenylalanine in Vermiculite: Detection, Characterization, and UV Degradation Studies for Biosignature Identification on Mars.
  Solar radiation that arrives on the surface of Mars interacts with organic molecules present in the soil. The radiation can degrade or transform the organic matter and make the search for biosignatures on the planet's surface difficult. Therefore, samples to b…
  pubmed McIntosh O, García-Florentino C, Fornaro T, Marabello D 等 2024 May 置信度 0.82
• Experimental Identification of Potential Martian Biosignatures in Open and Closed Systems.
  NASA's Perseverance and ESA's Rosalind Franklin rovers have the scientific goal of searching for evidence of ancient life on Mars. Geochemical biosignatures that form because of microbe-mineral interactions could play a key role in achieving this, as they can …
  pubmed Ramkissoon NK, Macey MC, Kucukkilic-Stephens E, Barton T 等 2024 May 置信度 0.82
• A Novel Abiotic Pathway for Phosphine Synthesis over Acidic Dust in Venus' Atmosphere.
  Recent ground-based observations of Venus have detected a single spectral feature consistent with phosphine (PH 3 ) in the middle atmosphere, a gas which has been suggested as a biosignature on rocky planets. The presence of PH 3 in the oxidized atmosphere of …
  pubmed Mráziková K, Knížek A, Saeidfirozeh H, Petera L 等 2024 Apr 置信度 0.82
• Considerations for Detecting Organic Indicators of Metabolism on Enceladus.
  Enceladus is of interest to astrobiology and the search for life since it is thought to host active hydrothermal activity and habitable conditions. It is also possible that the organics detected on Enceladus may indicate an active prebiotic or biotic system; i…
  pubmed Barge LM, Fournier GP 2024 Mar 置信度 0.82