Aguzzi Jacopo, Cuadros Javier, Dartnell Lewis, Costa Corrado, Violino Simona, Canfora Loredana, Danovaro Roberto, Robinson Nathan Jack, Giovannelli Donato, Flögel Sascha, Stefanni Sergio, Chatzievangelou Damianos, Marini Simone, Picardi Giacomo, Foing Bernard
Instituto de Ciencias del Mar (ICM)-CSIC, 08003 Barcelona, Spain.
Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
Life (Basel). 2024 May 24;14(6):676. doi: 10.3390/life14060676.
Life on our planet likely evolved in the ocean, and thus exo-oceans are key habitats to search for extraterrestrial life. We conducted a data-driven bibliographic survey on the astrobiology literature to identify emerging research trends with marine science for future synergies in the exploration for extraterrestrial life in exo-oceans. Based on search queries, we identified 2592 published items since 1963. The current literature falls into three major groups of terms focusing on (1) the search for life on Mars, (2) astrobiology within our Solar System with reference to icy moons and their exo-oceans, and (3) astronomical and biological parameters for planetary habitability. We also identified that the most prominent research keywords form three key-groups focusing on (1) using terrestrial environments as proxies for Martian environments, centred on extremophiles and biosignatures, (2) habitable zones outside of "Goldilocks" orbital ranges, centred on ice planets, and (3) the atmosphere, magnetic field, and geology in relation to planets' habitable conditions, centred on water-based oceans.
我们星球上的生命很可能是在海洋中演化而来的，因此外星海洋是寻找外星生命的关键栖息地。我们对天体生物学文献进行了一次数据驱动的文献调查，以确定与海洋科学相关的新兴研究趋势，以便未来在外星海洋探索外星生命时实现协同效应。基于搜索查询，我们确定了自1963年以来发表的2592篇文章。当前的文献分为三大类术语，重点关注：（1）在火星上寻找生命；（2）太阳系内涉及冰卫星及其外星海洋的天体生物学；（3）行星宜居性的天文和生物学参数。我们还发现，最突出的研究关键词形成了三个关键组，重点关注：（1）以极端微生物和生物特征为中心，将地球环境用作火星环境的替代物；（2）以冰行星为中心，在“宜居带”轨道范围之外的宜居区域；（3）以水基海洋为中心，与行星宜居条件相关的大气、磁场和地质。
