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Review
. 2021 Aug;21(8):893-905.
doi: 10.1089/ast.2020.2314.

Introduction-First Billion Years: Habitability

Edgard G Rivera-Valentín  1 , Justin Filiberto  1 , Kennda L Lynch  1 , Irena Mamajanov  2 , Timothy W Lyons  3 , Mitch Schulte  4 , Abel Méndez  5
Affiliations
Review

Introduction-First Billion Years: Habitability

Edgard G Rivera-Valentín et al. Astrobiology. 2021 Aug.

Abstract

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.

Keywords: Analog studies; Biosignatures; Exoplanets; Habitability; Origins of life.

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Conflict of interest statement

No competing financial interests exist.

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