Higher Microbial Biomass Accumulation on El Médano 464 Meteorite Compared with Adjacent Soils in the Atacama Desert [0.03%]
智利阿塔卡马沙漠中El Médano 464号陨石相比于周围土壤积累更多微生物生物量
Gabriel A Pinto,María Ángeles Lezcano,Laura Sanchéz-García et al.
Gabriel A Pinto et al.
Chondritic meteorites can be appropriate substrates for the colonization of terrestrial microorganisms. However, determining whether organic compounds are intrinsic to the meteorite or come from external (terrestrial) contamination is still...
Comparative Study
Astrobiology. 2025 Feb;25(2):115-132. DOI:10.1089/ast.2024.0071 2025
Ammonia or Methanol Would Enable Subsurface Liquid Water at the Martian South Pole [0.03%]
氨或甲醇可使火星南极地下存在液态水
Isabel Egea-González,Christopher P McKay,John E Hallsworth et al.
Isabel Egea-González et al.
The notion of liquid water beneath the ice layer at the south polar layered deposits (SPLD) of Mars is an interesting possibility given the implications for astrobiology and possible human habitation. A body of liquid water located at a dep...
Proteomic Insights into Psychrophile Growth in Perchlorate-Amended Subzero Conditions: Implications for Martian Life Detection [0.03%]
过氯酸盐改良的亚零度条件下 psychrophile 生长的蛋白质组学启示：对火星生命探测的意义
Anais S Gentilhomme,Kusum Dhakar,Emma Timmins-Schiffman et al.
Anais S Gentilhomme et al.
Since the discovery of perchlorates in martian soils, astrobiologists have been curious if and how life could survive in these low-water, high-salt environments. Perchlorates induce chaotropic and oxidative stress but can also confer increa...
Photochemical Evolution of Alanine in Association with the Martian Soil Analog Montmorillonite: Insights Derived from Experiments Conducted on the International Space Station [0.03%]
苏氨酸与火星土壤模拟物蒙脱石关联下的光化学演化：来自空间站实验的启示
Severin Wipf,Paul Mabey,Riccardo G Urso et al.
Severin Wipf et al.
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 mon...
Informing Planetary Protection Policies for the Future Exploration of Ceres: State of Understanding after the Dawn Mission [0.03%]
“基于黎明号任务的 ceres 探测的最新成果对未来行星保护政策的影响”
Julie Castillo-Rogez,Lynnae C Quick,Marc Neveu et al.
Julie Castillo-Rogez et al.
We review the current state of understanding of Ceres as it relates to planetary protection policy for future landed missions, including for sample return, to the dwarf planet. The Dawn mission found Ceres to be an intriguing target for a m...
Production of Organic Precursors via Meteoritic Impacts and Its Implications for Prebiotic Inventory of Early Planetary Surfaces [0.03%]
陨石撞击生成有机前体及其对早期天体表面生命前高分子化合物库的意义
Benjamin Farcy,Ziqin Ni,Ricardo Arevalo Jr et al.
Benjamin Farcy et al.
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 impa...
Waste Heat and Habitability: Constraints from Technological Energy Consumption [0.03%]
废热和宜居性：来自技术能源消耗的限制条件
Amedeo Balbi,Manasvi Lingam
Amedeo Balbi
Waste heat production represents an inevitable consequence of energy conversion as per the laws of thermodynamics. Based on this fact, by using simple theoretical models, we analyze constraints on the habitability of Earth-like terrestrial ...
A One-Dimensional Energy Balance Model Parameterization for the Formation of CO2 Ice on the Surfaces of Eccentric Extrasolar Planets [0.03%]
一种一维能量平衡模型参数化方案在偏心系外行星表面二氧化碳冰形成中的应用
Vidya Venkatesan,Aomawa L Shields,Russell Deitrick et al.
Vidya Venkatesan et al.
Eccentric planets may spend a significant portion of their orbits at large distances from their host stars, where low temperatures can cause atmospheric CO2 to condense out onto the surface, similar to the polar ice caps on Mars. The radiat...
Amplicon Sequencing Reveals Diversity in Spatially Separated Microbial Communities in the Icelandic Mars Analog Environment Mælifellssandur [0.03%]
扩增子测序揭示了冰岛火星类环境Mælifellssandur空间上分离的微生物群落的多样性
George Tan,Chloe N LeCates,Anna Simpson et al.
George Tan et al.
Exploration missions to Mars rely on landers or rovers to perform multiple analyses over geographically small sampling regions, while landing site selection is done using large-scale but low-resolution remote-sensing data. Utilizing Earth a...
Alternative Solvents for Life: Framework for Evaluation, Current Status, and Future Research [0.03%]
替代溶剂的框架评估、现状及未来研究
William Bains,Janusz J Petkowski,Sara Seager
William Bains
Life is a complex, dynamic chemical system that requires a dense fluid solvent in which to take place. A common assumption is that the most likely solvent for life is liquid water, and some researchers argue that water is the only plausible...