The physical processes active during the first billion years (FBY) of Earth's history, such as accretion, differentiation, and impact cratering, provide constraints on the initial conditions that were conducive to the formation and establishment of life on Earth. This motivated the Lunar and Planetary Institute's FBY topical initiative, which was a four-part conference series intended to look at each of these physical processes to study the basic structure and composition of our Solar System that was set during the FBY. The FBY Habitability conference, held in September 2019, was the last in this series and was intended to synthesize the initiative; specifically, to further our understanding of the origins of life, planetary and environmental habitability, and the search for life beyond Earth. The conference included discussions of planetary habitability and the potential emergence of life on bodies within our Solar System, as well as extrasolar systems by applying our knowledge of the Solar System's FBY, and in particular Earth's early history. To introduce this Special Collection, which resulted from work discussed at the conference, we provide a review of the main themes and a synopsis of the FBY Habitability conference.

中文翻译：

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简介——第一个十亿年：宜居性


地球历史最初十亿年（FBY）期间活跃的物理过程，例如吸积、分化和撞击坑，为有利于地球上生命形成和建立的初始条件提供了限制。这激发了月球与行星研究所的 FBY 主题倡议，这是一个由四部分组成的会议系列，旨在研究每个物理过程，以研究 FBY 期间确定的太阳系的基本结构和组成。 2019 年 9 月举行的 FBY 宜居性会议是该系列的最后一次会议，旨在综合该倡议；具体来说，是为了进一步了解生命的起源、行星和环境的宜居性，以及寻找地球以外的生命。会议包括通过应用我们对太阳系 FBY 的知识，特别是地球早期历史的知识，讨论行星的宜居性以及太阳系内以及太阳系外天体上可能出现生命的可能性。为了介绍这次会议讨论的工作成果的特别收藏，我们回顾了 FBY 宜居性会议的主要主题和概要。