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首页> 外文会议>Instruments, methods, and missions for astrobiology XIV >The Dry Valley Lakes, Antarctica: From sulfur stains on Earth to sulfur stains in the Jovian system
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The Dry Valley Lakes, Antarctica: From sulfur stains on Earth to sulfur stains in the Jovian system

机译：南极洲的干旱谷湖：从地球上的硫渍到木星系统中的硫渍

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Most organisms dwell in what we consider to be "normal" environments, while others, which are called extremophiles, may thrive in harsher conditions. These living organisms are mainly of unicellular (both prokaryotes and, to a lesser extent, there are some eukaryotes) But the extremophiles also include multicellular organisms, including worms, insects and crustaceans. In the present work we survey specific extremophiles in some detail. Astrobiology is concerned with all of these extremophiles, as they may be models for extant life in similar environments elsewhere in the universe. In the more restricted search for life through exploration of the Solar System, the main focus is on the preparation of suites of experiments that may attempt to discover the habitability of planets and their satellites. In this context we ask ourselves: What biosignatures can facilitate life detection, both unicellular and multicellular, in extreme environments? The environments that are within reach of present and future space missions include the Jupiter satellite Europa. The ice-covered lakes of Antarctica's McMurdo Dry Valleys have long been of interest to astrobiology. These environments harbor unique microbial ecosystems that could orient us how to plan our experiments on Europa.
机译：大多数生物生活在我们认为是“正常”的环境中，而其他生物（称为极端微生物）则可能在更恶劣的条件下繁衍。这些活生物主要是单细胞的（既是原核生物，也包括少量的真核生物），但极端微生物还包括多细胞生物，包括蠕虫，昆虫和甲壳类动物。在当前的工作中，我们将详细调查特定的极端微生物。天体生物学与所有这些极端微生物有关，因为它们可能是宇宙其他地方类似环境中现存生命的模型。在通过探索太阳系对生命进行更严格的搜索时，主要重点是准备一系列实验，这些实验可能试图发现行星及其卫星的宜居性。在这种情况下，我们自问：在极端环境下，哪些生物特征可以促进单细胞和多细胞生命检测？当前和将来的太空任务所能达到的环境包括木星卫星Europa。长期以来，天文生物学对南极麦克默多干旱谷的冰雪覆盖的湖泊很感兴趣。这些环境具有独特的微生物生态系统，可以指导我们如何计划在欧罗巴的实验。

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