Astrobiology

Article	Citations
Oxygenation, Life, and the Planetary System during Earth's Middle History: An Overview	105
Oxia Planum: The Landing Site for the ExoMars “Rosalind Franklin” Rover Mission: Geological Context and Prelanding Interpretation	88
The Venusian Lower Atmosphere Haze as a Depot for Desiccated Microbial Life: A Proposed Life Cycle for Persistence of the Venusian Aerial Biosphere	73
Phosphine on Venus Cannot Be Explained by Conventional Processes	52
Elements for the Origin of Life on Land: A Deep-Time Perspective from the Pilbara Craton of Western Australia	47
Venus, an Astrobiology Target	44
Morphological and Spectral Diversity of the Clay-Bearing Unit at the ExoMars Landing Site Oxia Planum	37
Catalytic Synthesis of Polyribonucleic Acid on Prebiotic Rock Glasses	36
Understanding Hypervelocity Sampling of Biosignatures in Space Missions	35
Science Objectives for Flagship-Class Mission Concepts for the Search for Evidence of Life at Enceladus	35
Earth-like Habitable Environments in the Subsurface of Mars	33
Water Activities of Acid Brine Lakes Approach the Limit for Life	32
One-Pot Hydrogen Cyanide-Based Prebiotic Synthesis of Canonical Nucleobases and Glycine Initiated by High-Velocity Impacts on Early Earth	29
Magma Ocean Evolution of the TRAPPIST-1 Planets	28
A Reconstructed Subaerial Hot Spring Field in the ∼3.5 Billion-Year-Old Dresser Formation, North Pole Dome, Pilbara Craton, Western Australia	28
The Timing of Evolutionary Transitions Suggests Intelligent Life is Rare	27
Potential for Phototrophy in Venus' Clouds	26
Investigating Habitability with an Integrated Rock-Climbing Robot and Astrobiology Instrument Suite	25
Phosphine Generation Pathways on Rocky Planets	25
Effects of Desiccation and Freezing on Microbial Ionizing Radiation Survivability: Considerations for Mars Sample Return	25
BioSentinel: A Biological CubeSat for Deep Space Exploration	25
Exobiology of the Venusian Clouds: New Insights into Habitability through Terrestrial Models and Methods of Detection	24
Assessment of Isoprene as a Possible Biosignature Gas in Exoplanets with Anoxic Atmospheres	24
Fusarium oxysporumas an Opportunistic Fungal Pathogen onZinnia hybridaPlants Grown on board the International Space Station	23
Determining the “Biosignature Threshold” for Life Detection on Biotic, Abiotic, or Prebiotic Worlds	23

Abiotic Synthesis of Nucleoside 5′-Triphosphates with Nickel Borate and Cyclic Trimetaphosphate (CTMP)	22
BioSentinel: Long-TermSaccharomyces cerevisiaePreservation for a Deep Space Biosensor Mission	22
Screening the Survival of Cyanobacteria Under Perchlorate Stress. Potential Implications for Mars In Situ Resource Utilization	21
Final Report of the Mars Sample Return Science Planning Group 2 (MSPG2)	21
Preliminary Planning for Mars Sample Return (MSR) Curation Activities in a Sample Receiving Facility (SRF)	21
Rapid Radiolytic Degradation of Amino Acids in the Martian Shallow Subsurface: Implications for the Search for Extinct Life	21
Assessment of Ammonia as a Biosignature Gas in Exoplanet Atmospheres	20
Microbial Sulfur Isotope Fractionation in the Chicxulub Hydrothermal System	19
Mars Sample Return (MSR): Planning for Returned Sample Science	19
Habitability Models for Astrobiology	19
Toward Detecting Biosignatures of DNA, Lipids, and Metabolic Intermediates from Bacteria in Ice Grains Emitted by Enceladus and Europa	19
When is Life a Viable Hypothesis? The Case of Venusian Phosphine	19
Ice Shell Structure and Composition of Ocean Worlds: Insights from Accreted Ice on Earth	19
Timescales for Prebiotic Photochemistry Under Realistic Surface Ultraviolet Conditions	19
An Alternative Approach for Assessing Biogenicity	19
Space Radiation Dosimetry at the Exposure Facility of the International Space Station for the Tanpopo Mission	18
In Search for a Planet Better than Earth: Top Contenders for a Superhabitable World	18
Bacterial Cellulose Retains Robustness but Its Synthesis Declines After Exposure to a Mars-like Environment Simulated Outside the International Space Station	17
Phosphorus in the Clouds of Venus: Potential for Bioavailability	17
Rationale and Proposed Design for a Mars Sample Return (MSR) Science Program	17
Cometary Glycolaldehyde as a Source of pre-RNA Molecules	17
Synthesis of Phospholipids Under Plausible Prebiotic Conditions and Analogies with Phospholipid Biochemistry for Origin of Life Studies	16
Comprehensive Search of Stable Isomers of Alanine and Alanine Precursors in Prebiotic Syntheses	16
Greenalite Nanoparticles in Alkaline Vent Plumes as Templates for the Origin of Life	16
Inefficient Water Degassing Inhibits Ocean Formation on Rocky Planets: An Insight from Self-Consistent Mantle Degassing Models	15
Microbially Induced Sedimentary Structures in Clastic Deposits: Implication for the Prospection for Fossil Life on Mars	15
Detection of Biosignatures by Capillary Electrophoresis Mass Spectrometry in the Presence of Salts Relevant to Ocean Worlds Missions	15
Urability: A Property of Planetary Bodies That Can Support an Origin of Life	15
Ancient Oil as a Source of Carbonaceous Matter in 1.88-Billion-Year-Old Gunflint Stromatolites and Microfossils	14
An Overview of Lipid Biomarkers in Terrestrial Extreme Environments with Relevance for Mars Exploration	14
The Venus Life Equation	14
Investigation of Venus Cloud Aerosol and Gas Composition Including Potential Biogenic Materials via an Aerosol-Sampling Instrument Package	14
Spaceflight Virology: What Do We Know about Viral Threats in the Spaceflight Environment?	14
ExoMars Raman Laser Spectrometer: A Tool to Semiquantify the Serpentinization Degree of Olivine-Rich Rocks on Mars	13
Relevance of the Unfolded Protein Response to Spaceflight-Induced Transcriptional Reprogramming in Arabidopsis	13
Nitrogen Fixation at Early Mars	13
Scientific Value of Including an Atmospheric Sample as Part of Mars Sample Return (MSR)	13
Mass Spectrometric Fingerprints of Bacteria and Archaea for Life Detection on Icy Moons	13
Atmospheric Nitrogen When Life Evolved on Earth	12
Time-Sensitive Aspects of Mars Sample Return (MSR) Science	12
Exploring the Lipid World Hypothesis: A Novel Scenario of Self-Sustained Darwinian Evolution of the Liposomes	12
Revival of Anhydrobiotic Cyanobacterium Biofilms Exposed to Space Vacuum and Prolonged Dryness: Implications for Future Missions beyond Low Earth Orbit	12
Photochemical Synthesis of Ammonia and Amino Acids from Nitrous Oxide	12
The AMADEE-18 Mars Analog Expedition in the Dhofar Region of Oman	11
BioSentinel: A Biofluidic Nanosatellite Monitoring Microbial Growth and Activity in Deep Space	11
Taxonomic Characterization and Microbial Activity Determination of Cold-Adapted Microbial Communities in Lava Tube Ice Caves from Lava Beds National Monument, a High-Fidelity Mars Analogue Environment	11
Do Soluble Phosphates Direct the Formose Reaction towards Pentose Sugars?	11
Fatty Acid Preservation in Modern and Relict Hot-Spring Deposits in Iceland, with Implications for Organics Detection on Mars	11
Uninhabitable and Potentially Habitable Environments on Mars: Evidence from Meteorite ALH 84001	11
Detection and Degradation of Adenosine Monophosphate in Perchlorate-Spiked Martian Regolith Analog, by Deep-Ultraviolet Spectroscopy	11

Biologically Available Chemical Energy in the Temperate but Uninhabitable Venusian Cloud Layer: What Do We Want to Know?	11
Assessment of Automated Nucleic Acid Extraction Systems in Combination with MinION Sequencing As Potential Tools for the Detection of Microbial Biosignatures	11
Influence of Calcium Perchlorate on the Search for Organics on Mars with Tetramethylammonium Hydroxide Thermochemolysis	11
Seeding Biochemistry on Other Worlds: Enceladus as a Case Study	10
Time-Integrative Multibiomarker Detection in Triassic–Jurassic Rocks from the Atacama Desert: Relevance to the Search for Basic Life Beyond Earth	10
Scientific Targets of Tanpopo: Astrobiology Exposure and Micrometeoroid Capture Experiments at the Japanese Experiment Module Exposed Facility of the International Space Station	10
A Cruise-Phase Microbial Survival Model for Calculating Bioburden Reductions on Past or Future Spacecraft Throughout Their Missions with Application to Europa Clipper	10
Mineral Matrix Effects on Pyrolysis Products of Kerogens Infer Difficulties in Determining Biological Provenance of Macromolecular Organic Matter at Mars	10
Science Autonomy for Ocean Worlds Astrobiology: A Perspective	10
Science and Curation Considerations for the Design of a Mars Sample Return (MSR) Sample Receiving Facility (SRF)	10
A Drake Equation for Alien Artifacts	10
Extraction and Separation of Chiral Amino Acids for Life Detection on Ocean Worlds Without Using Organic Solvents or Derivatization	10
Biosignatures Associated with Organic Matter in Late Paleoproterozoic Stromatolitic Dolomite and Implications for Martian Carbonates	9
Spectropolarimetry of Primitive Phototrophs as Global Surface Biosignatures	9
Hot Spring Microbial Community Elemental Composition: Hot Spring and Soil Inputs, and the Transition from Biocumulus to Siliceous Sinter	9
Bacterial Growth in Brines Formed by the Deliquescence of Salts Relevant to Cold Arid Worlds	9
Resolving the History of Life on Earth by Seeking Life As We Know It on Mars	9
Planning Implications Related to Sterilization-Sensitive Science Investigations Associated with Mars Sample Return (MSR)	9
Laboratory Analysis of Returned Samples from the AMADEE-18 Mars Analog Mission	9
Microbial Protocols for Spacecraft: 3. Spore Monolayer Preparation Methods for Ultraviolet Irradiation Exposures	9
Four-Year Operation of Tanpopo: Astrobiology Exposure and Micrometeoroid Capture Experiments on the JEM Exposed Facility of the International Space Station	9
Impact of UV Radiation on the Raman Signal of Cystine: Implications for the Detection of S-rich Organics on Mars	9
Interrelationships in the Gypsum–Syngenite–Görgeyite System and Their Possible Formation on Mars	9
UV Transmission in Natural Waters on Prebiotic Earth	8
Mineralogical and Spectral (Near-Infrared) Characterization of Fe-Rich Vermiculite-Bearing Terrestrial Deposits and Constraints for Mineralogy of Oxia Planum, ExoMars 2022 Landing Site	8
Tardigrade Survival Limits in High-Speed Impacts—Implications for Panspermia and Collection of Samples from Plumes Emitted by Ice Worlds	8
Testing Abiotic Reduction of NAD+ Directly Mediated by Iron/Sulfur Minerals	8
In Situ Identification of Paleoarchean Biosignatures Using Colocated Perseverance Rover Analyses: Perspectives for In Situ Mars Science and Sample Return	8
The Scientific Importance of Returning Airfall Dust as a Part of Mars Sample Return (MSR)	8
Transfer of Rocks Between Planetary Systems: Panspermia Revisited	8
A Deep Ultraviolet Raman and Fluorescence Spectral Library of 51 Organic Compounds for the SHERLOC Instrument Onboard Mars 2020	8
A Proposed Geobiology-Driven Nomenclature for AstrobiologicalIn SituObservations and Sample Analyses	8
The Origin of Life: What Is the Question?	8
Characterization of the Halochromic Gloeocapsin Pigment, a Cyanobacterial Biosignature for Paleobiology and Astrobiology	7
Microfluidics Microbial Activity MicroAssay: An Automated In Situ Microbial Metabolic Detection System	7
Degradation of Amino Acids on Mars by UV Irradiation in the Presence of Chloride and Oxychlorine Salts	7
Dimerization of Uracil in a Simulated Mars-like UV Radiation Environment	7
Planetary Protection Implementation and Verification Approach for the Mars 2020 Mission	7
Pyrolysis of Carboxylic Acids in the Presence of Iron Oxides: Implications for Life Detection on Missions to Mars	7
ExoMars Mars Organic Molecule Analyzer (MOMA) Laser Desorption/Ionization Mass Spectrometry (LDI-MS) Analysis of Phototrophic Communities from a Silica-Depositing Hot Spring in Yellowstone National Pa	7
The Radiation Environment of Ceres and Implications for Surface Sampling	7
Selection and Analytical Performances of the Dragonfly Mass Spectrometer Gas Chromatographic Columns to Support the Search for Organic Molecules of Astrobiological Interest on Titan	7
The Call for a New Definition of Biosignature	7
Highly Siderophile Elements and Coupled Fe-Os Isotope Signatures in the Temagami Iron Formation, Canada: Possible Signatures of Neoarchean Seawater Chemistry and Earth's Oxygenation History	7
Deoxyribonucleic Acid Extraction from Mars Analog Soils and Their Characterization with Solid-State Nanopores	7
Surface and Oceanic Habitability of Trappist-1 Planets under the Impact of Flares	7
Integrated Molar Absorptivity of Mid- and Far-Infrared Spectra of Glycine and Other Selected Amino Acids	7
Prokaryotic Diversity and Metabolically Active Communities in Brines from Two Perennially Ice-Covered Antarctic Lakes	7
Radiolytic Degradation of Soil Carbon from the Mojave Desert by60Co Gamma Rays: Implications for the Survival of Martian Organic Compounds Due to Cosmic Radiation	7
Experimental Investigation of the Formation of Formaldehyde by Hadean and Noachian Impacts	7
Perchlorate Salts Exert a Dominant, Deleterious Effect on the Structure, Stability, and Activity of α-Chymotrypsin	7
COSPAR Sample Safety Assessment Framework (SSAF)	7
Salt Tolerance and UV Protection of Bacillus subtilis and Enterococcus faecalis under Simulated Martian Conditions	6
Dispersion of Bacteria by Low-Pressure Boiling: Life Detection in Enceladus' Plume Material	6
Theoretical Investigation into a Possibility of Formation of Propylene Oxide Homochirality in Space	6
A Transiently Hypersaline Microbial Mat Harbors a Diverse and Stable Archaeal Community in the Cuatro Cienegas Basin, Mexico	6
Biosignatures Preserved in Carbonate Nodules from the Western Qaidam Basin, NW China: Implications for Life Detection on Mars	6
The Molecular Record of Metabolic Activity in the Subsurface of the Río Tinto Mars Analog	6
The Bioburden and Ionic Composition of Hypersaline Lake Ices: Novel Habitats on Earth and Their Astrobiological Implications	6
Venus' Atmospheric Chemistry and Cloud Characteristics Are Compatible with Venusian Life	6
Some Pertinent Issues for Interstellar Panspermia Raised after the Discovery of 1I/‘Oumuamua	6
Quantifying Preservation Potential: Lipid Degradation in a Mars-Analog Circumneutral Iron Deposit	6
Interactions Between Iron Sulfide Minerals and Organic Carbon: Implications for Biosignature Preservation and Detection	6
Acid Mine Drainage as Energizing Microbial Niches for the Formation of Iron Stromatolites: The Tintillo River in Southwest Spain	6
Martian Magmatic Clay Minerals Forming Vesicles: Perfect Niches for Emerging Life?	6
High pCO2Reduces Sensitivity to CO2Perturbations on Temperate, Earth-like Planets Throughout Most of Habitable Zone	6
Natural Radioactive Environments as Sources of Local Disequilibrium for the Emergence of Life	6
Minimum Units of Habitability and Their Abundance in the Universe	6
A Review of the “Black Beauty” Martian Regolith Breccia and Its Martian Habitability Record	6
Space Exposure of Amino Acids and Their Precursors during the Tanpopo Mission	6
Artificial Maturation of Iron- and Sulfur-Rich Mars Analogues: Implications for the Diagenetic Stability of Biopolymers and Their Detection with Pyrolysis–Gas Chromatography–Mass Spectrometry	6
Biogenicity of Spicular Geyserite from Te Kopia, New Zealand: Integrated Petrography, High-Resolution Hyperspectral and Elemental Analysis	6
Theoretical Constraints Imposed by Gradient Detection and Dispersal on Microbial Size in Astrobiological Environments	6
Out of Thin Air? Astrobiology and Atmospheric Chemotrophy	6
Comparisons of Transcriptome Profiles fromBacillus subtilisCells Grown in Space versus High Aspect Ratio Vessel (HARV) Clinostats Reveal a Low Degree of Concordance	6
Duplex Formation and the Origins of Homochirality	6
Is There Such a Thing as a Biosignature?	6
Nitrogen Cycling and Biosignatures in a Hyperarid Mars Analog Environment	6
Influence of Calcium Perchlorate on the Search for Martian Organic Compounds with MTBSTFA/DMF Derivatization	6
Preservation and Distributions of Covalently Bound Polyaromatic Hydrocarbons in Ancient Biogenic Kerogens and Insoluble Organic Macromolecules	5

Life Detection and Microbial Biomarker Profiling with Signs of Life Detector-Life Detector Chip During a Mars Drilling Simulation Campaign in the Hyperarid Core of the Atacama Desert	5
The ‘Oumuamua Controversy: Bayesian Priors and the Evolution of Technological Intelligence	5
Biogeochemistry of Recently Fossilized Siliceous Hot Spring Sinters from Yellowstone, USA	5
Large Interferometer for Exoplanets: VIII. Where Is the Phosphine? Observing Exoplanetary PH3 with a Space-Based Mid-Infrared Nulling Interferometer	5
The Biological Study of Lifeless Worlds and Environments	5
A Short History of Panspermia from Antiquity Through the Mid-1970s	5
The Role of Minerals in Events That Led to the Origin of Life	5
The ScanMars Subsurface Radar Sounding Experiment on AMADEE-18	5
Radiolytic Destruction of Uracil in Interstellar and Solar System Ices	5
Microbial Protocols for Spacecraft: 1. Effects of Surface Texture, Low Pressure, and UV Irradiation on Recovery of Microorganisms from Surfaces	5
Hydrogen Production from Alteration of Chicxulub Crater Impact Breccias: Potential Energy Source for a Subsurface Microbial Ecosystem	5
Raman Characterization of the CanMars Rover Field Campaign Samples Using the Raman Laser Spectrometer ExoMars Simulator: Implications for Mars and Planetary Exploration	5
Diagnosing an Opportunistic Fungal Pathogen on Spaceflight-Grown Plants Using the MinION Sequencing Platform	5
Habitability and Biosignature Formation in Simulated Martian Aqueous Environments	5
The Emergence of Astrobiology: A Topic-Modeling Perspective	5
Extremophiles in Earth's Deep Seas: A View Toward Life in Exo-Oceans	5
AMADEE-18: Vision-Based Unmanned Aerial Vehicle Navigation for Analog Mars Mission (AVI-NAV)	5
Color Catalogue of Life in Ice: Surface Biosignatures on Icy Worlds	5
Introducing the Venus Collection—Papers from the First Workshop on Habitability of the Cloud Layer	5
Life on Mars: Independent Genesis or Common Ancestor?	5
Infrared Spectral Intensities of Amine Ices, Precursors to Amino Acids	5
Planetary Minerals Catalyze Conversion of a Polycyclic Aromatic Hydrocarbon to a Prebiotic Quinone: Implications for Origins of Life	5
On the Possibility of an Artificial Origin for ‘Oumuamua	5
UV Time-Resolved Laser-Induced Fluorescence Spectroscopy of Amino Acids Found in Meteorites: Implications for Space Science and Exploration	4
BioSentinel: Validating Sensitivity of Yeast Biosensors to Deep Space Relevant Radiation	4
Bridging Place-Based Astrobiology Education with Genomics, Including Descriptions of Three Novel Bacterial Species Isolated from Mars Analog Sites of Cultural Relevance	4
Stable Isotope Fractionation in a Cold Spring System, Utah, USA: Insights for Sample Selection on Mars	4
Multiwavelength Ablation/Ionization and Mass Spectrometric Analysis of 1.88 Ga Gunflint Chert	4
Habitability Is Binary, But It Is Used by Astrobiologists to Encompass Continuous Ecological Questions	4
Solid-State Single-Molecule Sensing with the Electronic Life-Detection Instrument for Enceladus/Europa (ELIE)	4
Agnostic Life Finder (ALF) for Large-Scale Screening of Martian Life During In Situ Refueling	4
Biogeographical Modeling of Alien Worlds	4
Microbial Characterization of Arctic Glacial Ice Cores with a Semiautomated Life Detection System	4
AMADEE-18 and the Analog Mission Performance Metrics Analysis: A Benchmarking Tool for Mission Planning and Evaluation	4
Deep-UV Raman Spectroscopy of Carbonaceous Precambrian Microfossils: Insights into the Search for Past Life on Mars	4
Endolithic Microbial Carbon Cycling in East Antarctica	4
Planetary Protection Assessment of Radioisotope Thermoelectric Generator (RTG)–Powered Landed Missions to Ocean Worlds: Application to Enceladus	4
Team Processes and Outcomes During the AMADEE-18 Mars Analog Mission	4
Mutation Analysis of therpoBGene in the Radiation-Resistant BacteriumDeinococcus radioduransR1 Exposed to Space during the Tanpopo Experiment at the International Space Station	4
The Atacama Rover Astrobiology Drilling Studies (ARADS) Project	4
Constraining the Rosalind Franklin Rover/Ma_MISS Instrument Capability in the Detection of Organics	4
Study of Ferrocyanide Adsorption onto Different Minerals as Prebiotic Chemistry Assays	4
Novel Chimeric Amino Acid-Fatty Alcohol Ester Amphiphiles Self-Assemble into Stable Primitive Membranes in Diverse Geological Settings	4
Chemical, Thermal, and Radiation Resistance of an Iron Porphyrin: A Model Study of Biosignature Stability	4
Organic Input to Titan's Subsurface Ocean Through Impact Cratering	4
Earth to Mars: A Protocol for Characterizing Permafrost in the Context of Climate Change as an Analog for Extraplanetary Exploration	4
Interpreting Molecular and Isotopic Biosignatures in Methane-Derived Authigenic Carbonates in the Light of a Potential Carbon Cycle in the Icy Moons	4
Microfluidic Chromatography for Enhanced Amino Acid Detection at Ocean Worlds	4
The Raman Active Vibrational Modes of Anthraquinones	4
Freshwater and Evaporite Brine Compositions on Hadean Earth: Priming the Origins of Life	4
Astrobiological Potential of Venus Atmosphere Chemical Anomalies and Other Unexplained Cloud Properties	4
Signatures of Life Detected in Images of Rocks Using Neural Network Analysis Demonstrate New Potential for Searching for Biosignatures on the Surface of Mars	4
Hydrothermal Regeneration of Ammonium as a Basin-Scale Driver of Primary Productivity	3
Introduction—First Billion Years: Habitability	3
Ice Transit and Performance Analysis for Cryorobotic Subglacial Access Missions on Earth and Europa	3
Transformation of Cyanobacterial Biomolecules by Iron Oxides During Flash Pyrolysis: Implications for Mars Life-Detection Missions	3
3D Printed Minerals as Astrobiology Analogs of Hydrothermal Vent Chimneys	3
Stromatolite-like Structures Within Microbially Laminated Sandstones of the Paleoarchean Moodies Group, Barberton Greenstone Belt, South Africa	3
Metagenomic Methods for Addressing NASA's Planetary Protection Policy Requirements on Future Missions: A Workshop Report	3
The New Astronomical Frontier of Interstellar Objects	3
Planetary Mapping Using Deep Learning: A Method to Evaluate Feature Identification Confidence Applied to Habitats in Mars-Analog Terrain	3
What Would an Alien Amino Acid Alphabet Look Like and Why?	3
Growth on Carbohydrates from Carbonaceous Meteorites Alters the Immunogenicity of Environment-Derived Bacterial Pathogens	3
Respiration Measurements of Individual Tardigrades of the SpeciesRichtersiuscfcoroniferas a Function of Temperature and Salinity and Termination of Anhydrobiosis	3
Investigation of Raman Spectroscopic Signatures with Multivariate Statistics: An Approach for Cataloguing Microbial Biosignatures	3
Quantum Dots in Peroxidase-like Chemistry and Formamide-Based Hot Spring Synthesis of Nucleobases	3
Aquatic Ferrous Solutions of Prebiotic Mineral Salts as Strong UV Protectants and Possible Loci of Life Origin	3
In SituReal-Time Monitoring for Aseptic Drilling: Lessons Learned from the Atacama Rover Astrobiology Drilling Studies Contamination Control Strategy and Implementation and Application to the I	3
Soil Carbon Dioxide Planetary Thermostat	3
Directional Aspects of Vegetation Linear and Circular Polarization Biosignatures	3
Study of the Stability of Gly·MgSO4·5H2O under Simulated Martian Conditions by In Situ Raman Spectroscopy	3
Microbial Growth in Martian Soil Simulants Under Terrestrial Conditions: Guiding the Search for Life on Mars	3
Spectral Detection of Nanophase Iron Minerals Produced by Fe(III)-Reducing Hyperthermophilic Crenarchaea	3
Metagenome-Assembled Genomes from Monte Cristo Cave (Diamantina, Brazil) Reveal Prokaryotic Lineages As Functional Models for Life on Mars	3
Land Fraction Diversity on Earth-like Planets and Implications for Their Habitability	3
Optimizing Chiral Selectivity in Practical Life-Detection Instruments	3
Investigations on the Role of Iron (III) and Silica-Iron (III) for DNA Protection Against Highly Intense UV Radiation: Tracking the Connection of Prebiotic Chemistry to Biology	3
The Growth and Sporulation of Bacillus subtilis in Nanotesla Magnetic Fields	3
Linear Ion Trap Mass Spectrometer (LITMS) Instrument Field and Laboratory Tests as Part of the ARADS Field Campaigns	3