Deamer David, Cary Francesca, Damer Bruce
Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, California, USA.
Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Mānoa, Honolulu, Hawaii, USA.
Astrobiology. 2022 Jul;22(7):889-900. doi: 10.1089/ast.2021.0173. Epub 2022 Jun 8.
The concept of habitability is now widely used to describe zones in a solar system in which planets with liquid water can sustain life. Because habitability does not explicitly incorporate the origin of life, this article proposes a new word-urability-which refers to the conditions that allow life to begin. The utility of the word is tested by applying it to combinations of multiple geophysical and geochemical factors that support plausible localized zones that are conducive to the chemical reactions and molecular assembly processes required for the origin of life. The concept of urable worlds, planetary bodies that can sustain an arising of life, is considered for bodies in our own solar system and exoplanets beyond.
宜居性这一概念如今被广泛用于描述太阳系中存在液态水的行星能够维持生命的区域。由于宜居性并未明确纳入生命起源的因素，本文提出了一个新词——可育性，它指的是允许生命起源的条件。通过将这个词应用于多种地球物理和地球化学因素的组合来检验其效用，这些因素支持了可能存在的局部区域，这些区域有利于生命起源所需的化学反应和分子组装过程。可育世界的概念，即能够维持生命起源的行星体，被应用于我们太阳系内的天体以及太阳系外的系外行星。
