Defining the biological boundaries to sustain extant life on Mars

定义维持火星现存生命的生物边界

• 批准号: DP240102658
• 负责人: Prof Belinda Ferrari
• 金额: $ 44.91万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2024
• 资助国家: 澳大利亚
• 起止时间: 2024-01-01 至 2026-12-31
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP240102658
• 关键词: Defining; biological; boundaries; sustain; extant; Defining; biological; boundaries; sustain; extant

Key challenges for life are access to water & energy, and in cold, arid environments trace gas chemotrophy is used by soil microbiomes to sustain life. Given the cold, hyper-arid conditions on the Martian surface are analogues to ice-free regions of Antarctica, atmospheric chemoautotrophic ecosystems are the most promising ecological model for Martian life in the present or recent past. This project is significant, as it aims to define the limits to energy, water and carbon production via trace gas chemotrophy. We will integrate biology with astrophysics to identify at which point life ceases. Expected outcomes include new knowledge on the biological envelope, with benefits to include the identification of Martian regions for exploration.

生命的主要挑战是获取水和能源，在寒冷的干旱环境中，痕量气体趋化性被土壤微生物组合来维持生命。鉴于火星表面上的寒冷，超干旱的条件是与南极洲无冰区域的类似物，大气化学自由营养生态系统是目前或最近的火星生活的最有希望的生态模型。该项目很重要，因为它旨在通过微量气体趋化粒子定义能源，水和碳生产的限制。我们将将生物学与天体物理学整合在一起，以识别生命停止。预期的结果包括有关生物信封的新知识，其中有益于识别火星地区的探索区域。