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| Open AccessThe importance of continents, oceans and plate tectonics for the evolution of complex life: implications for finding extraterrestrial civilizations
- Robert J. Stern
- & Taras V. Gerya
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| Open AccessPresent-day thermal and water activity environment of the Mars Sample Return collection
- Maria-Paz Zorzano
- , Germán Martínez
- & Jesús Martínez-Frías
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| Open AccessSpectral evidence for irradiated halite on Mars
- Michael S. Bramble
- & Kevin P. Hand
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| Open AccessThe minimum energy required to build a cell
- Edwin Ortega-Arzola
- , Peter M. Higgins
- & Charles S. Cockell
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| Open AccessLife on Earth can grow on extraterrestrial organic carbon
- Annemiek C. Waajen
- , Cassio Lima
- & Charles S. Cockell
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| Open AccessAtmospheric formaldehyde production on early Mars leading to a potential formation of bio-important molecules
- Shungo Koyama
- , Arihiro Kamada
- & Ann Carine Vandaele
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| Open AccessHexose phosphorylation for a non-enzymatic glycolysis and pentose phosphate pathway on early Earth
- Yuta Hirakawa
- , Takeshi Kakegawa
- & Yoshihiro Furukawa
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| Open AccessDendrometers challenge the ‘moon wood concept’ by elucidating the absence of lunar cycles in tree stem radius oscillation
- Jan Tumajer
- , Sabine Braun
- & Martin Wilmking
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| Open AccessFully fluorinated non-carbon compounds NF3 and SF6 as ideal technosignature gases
- Sara Seager
- , Janusz J. Petkowski
- & William Bains
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| Open AccessVariations in climate habitability parameters and their effect on Earth's biosphere during the Phanerozoic Eon
- Iva Vilović
- , Dirk Schulze-Makuch
- & René Heller
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| Open AccessDistributions of CHN compounds in meteorites record organic syntheses in the early solar system
- Yoshihiro Furukawa
- , Daisuke Saigusa
- & Tomoki Nakamura
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| Open AccessBuilding the uracil skeleton in primitive ponds at the origins of life: carbamoylation of aspartic acid
- Louis M. P. Ter-Ovanessian
- , Jean-François Lambert
- & Marie-Christine Maurel
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| Open AccessContamination analysis of Arctic ice samples as planetary field analogs and implications for future life-detection missions to Europa and Enceladus
- Lígia F. Coelho
- , Marie-Amélie Blais
- & João Canário
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| Open AccessBorate-guided ribose phosphorylation for prebiotic nucleotide synthesis
- Yuta Hirakawa
- , Takeshi Kakegawa
- & Yoshihiro Furukawa
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| Open AccessA global network model of abiotic phosphorus cycling on Earth through time
- Marcos Jusino-Maldonado
- , Rafael Rianço-Silva
- & H. James Cleaves II
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| Open AccessAbsence of increased genomic variants in the cyanobacterium Chroococcidiopsis exposed to Mars-like conditions outside the space station
- Alessandro Napoli
- , Diego Micheletti
- & Daniela Billi
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| Open AccessSurvival strategies of an anoxic microbial ecosystem in Lake Untersee, a potential analog for Enceladus
- Nicole Yasmin Wagner
- , Dale T. Andersen
- & Sarah Stewart Johnson
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| Open AccessImpact of spaceflight and artificial gravity on sulfur metabolism in mouse liver: sulfur metabolomic and transcriptomic analysis
- Ryo Kurosawa
- , Ryota Sugimoto
- & Kengo Suzuki
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| Open AccessUnveiling microbial preservation under hyperacidic and oxidizing conditions in the Oligocene Rio Tinto deposit
- David C. Fernández-Remolar
- , Daniel Carrizo
- & Per Malmberg
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| Open AccessCarbamoyl phosphate and its substitutes for the uracil synthesis in origins of life scenarios
- Louis M. P. Ter-Ovanessian
- , Baptiste Rigaud
- & Marie-Christine Maurel
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| Open AccessTranscriptional response to prolonged perchlorate exposure in the methanogen Methanosarcina barkeri and implications for Martian habitability
- Rachel L. Harris
- , Andrew C. Schuerger
- & Tullis C. Onstott
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| Open AccessAn easy-to-use function to assess deep space radiation in human brains
- Salman Khaksarighiri
- , Jingnan Guo
- & Livio Narici
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| Open AccessNano-FTIR spectroscopic identification of prebiotic carbonyl compounds in Dominion Range 08006 carbonaceous chondrite
- Mehmet Yesiltas
- , Timothy D. Glotch
- & Bogdan Sava
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| Open AccessRadiolysis generates a complex organosynthetic chemical network
- Zachary R. Adam
- , Albert C. Fahrenbach
- & Dmitry Yu. Zubarev
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| Open AccessExoFiT trial at the Atacama Desert (Chile): Raman detection of biomarkers by representative prototypes of the ExoMars/Raman Laser Spectrometer
- Marco Veneranda
- , Guillermo Lopez-Reyes
- & Fernando Rull
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| Open AccessA dual perspective on the microwave-assisted synthesis of HCN polymers towards the chemical evolution and design of functional materials
- Lucía Hortal
- , Cristina Pérez-Fernández
- & Marta Ruiz-Bermejo
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| Open AccessInhabited subsurface wet smectites in the hyperarid core of the Atacama Desert as an analog for the search for life on Mars
- Armando Azua-Bustos
- , Alberto G. Fairén
- & Elizabeth B. Rampe
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| Open AccessPrebiotic oligomerization and self-assembly of structurally diverse xenobiological monomers
- Kuhan Chandru
- , Tony Z. Jia
- & H. James Cleaves II
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| Open AccessConstraining the preservation of organic compounds in Mars analog nontronites after exposure to acid and alkaline fluids
- Carolina Gil-Lozano
- , Alberto G. Fairén
- & Eva Mateo-Martí
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| Open AccessEstimating survival probability using the terrestrial extinction history for the search for extraterrestrial life
- Kohji Tsumura
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| Open AccessThe identification of sulfide oxidation as a potential metabolism driving primary production on late Noachian Mars
- M. C. Macey
- , M. Fox-Powell
- & K. Olsson-Francis
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| Open AccessORIGIN: a novel and compact Laser Desorption – Mass Spectrometry system for sensitive in situ detection of amino acids on extraterrestrial surfaces
- Niels F. W. Ligterink
- , Valentine Grimaudo
- & Andreas Riedo
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| Open AccessImpact-induced amino acid formation on Hadean Earth and Noachian Mars
- Yuto Takeuchi
- , Yoshihiro Furukawa
- & Takeshi Kakegawa
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| Open AccessA Complex Life Habitable Zone Based On Lipid Solubility Theory
- Ramses M. Ramirez
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| Open AccessMethanogenic Archaea Can Produce Methane in Deliquescence-Driven Mars Analog Environments
- Deborah Maus
- , Jacob Heinz
- & Dirk Schulze-Makuch
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| Open AccessThe degradation of organic compounds impacts the crystallization of clay minerals and vice versa
- Pierre Jacquemot
- , Jean-Christophe Viennet
- & Maguy Jaber
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| Open AccessExploring the microbial biotransformation of extraterrestrial material on nanometer scale
- Tetyana Milojevic
- , Denise Kölbl
- & Alexandra N. Rupert
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| Open AccessPartitioning of amino acids and proteins into decanol using phase transfer agents towards understanding life in non-polar liquids
- Brooke Thompson
- , Kayla Burt
- & Sarah E. Maurer
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| Open AccessPyrite-induced uv-photocatalytic abiotic nitrogen fixation: implications for early atmospheres and Life
- E. Mateo-Marti
- , S. Galvez-Martinez
- & María-Paz Zorzano
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| Open AccessAdaptive Properties of the Genetically Encoded Amino Acid Alphabet Are Inherited from Its Subsets
- Melissa Ilardo
- , Rudrarup Bose
- & H. James Cleaves II
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| Open AccessAeolian transport of viable microbial life across the Atacama Desert, Chile: Implications for Mars
- Armando Azua-Bustos
- , Carlos González-Silva
- & María-Paz Zorzano
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| Open AccessSpace-like 56Fe irradiation manifests mild, early sex-specific behavioral and neuropathological changes in wildtype and Alzheimer’s-like transgenic mice
- Bin Liu
- , Robert G. Hinshaw
- & Cynthia A. Lemere
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| Open AccessH2O2 photoproduction inside H2O and H2O:O2 ices at 20–140 K
- Mikhail Yu. Kulikov
- , Alexander M. Feigin
- & Otto Schrems
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| Open AccessDetectability of biosignatures in a low-biomass simulation of martian sediments
- Adam H. Stevens
- , Alison McDonald
- & Charles S. Cockell
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| Open AccessNitrogen heterocycles form peptide nucleic acid precursors in complex prebiotic mixtures
- Laura E. Rodriguez
- , Christopher H. House
- & Michael P. Callahan
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| Open AccessSurface Expressions of Subsurface Sediment Mobilization Rooted into a Gas Hydrate-Rich Cryosphere on Mars
- Barbara De Toffoli
- , Riccardo Pozzobon
- & Gabriele Cremonese
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| Open AccessUltra-small microorganisms in the polyextreme conditions of the Dallol volcano, Northern Afar, Ethiopia
- Felipe Gómez
- , Barbara Cavalazzi
- & Hagos Miruts
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