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<p>Liquid water exists on the Earth and several other planetary bodies in our solar system. The chemical character of these aqueous reservoirs is central to evaluating their habitability. Here, we synthesize the chemical features of water reservoirs and their biological implications on the modern Earth. We then outline constraints on the evolutionary history of Earth’s ocean chemistry and discuss its interplay with the biosphere. Furthermore, we examine the inferred chemical environments of water bodies on early Mars, dwarf planet Ceres, Jupiter’s moon Europa and Saturn’s moons Enceladus and Titan. We conclude by outlining priority questions for future planetary habitability studies.</p>

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The chemistry of habitable oceans in the Solar system

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月29日

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  • Jihua Hao,
  • Yuke Zhu,
  • Andrew H. Knoll,
  • Nicholas J. Tosca,
  • Chao He,
  • Maggie C. Y. Lau Vetter,
  • Li Liao,
  • Peter W. Crockford,
  • Eva E. Stüeken,
  • Anya Huo,
  • Jie Li,
  • Javed Akhter Mondal,
  • David C. Catling,
  • Yafang Song,
  • Pengcheng Ju,
  • Lu Pan,
  • Fang Huang,
  • Christopher R. Glein

摘要

Liquid water exists on the Earth and several other planetary bodies in our solar system. The chemical character of these aqueous reservoirs is central to evaluating their habitability. Here, we synthesize the chemical features of water reservoirs and their biological implications on the modern Earth. We then outline constraints on the evolutionary history of Earth’s ocean chemistry and discuss its interplay with the biosphere. Furthermore, we examine the inferred chemical environments of water bodies on early Mars, dwarf planet Ceres, Jupiter’s moon Europa and Saturn’s moons Enceladus and Titan. We conclude by outlining priority questions for future planetary habitability studies.