From Geobiology to Astrobiology
Luo Genming
Wang Chang
Yin Zongjun
Shen Bing
Lin Wei
Qu Yuangao
Abstract：Are we alone in the Universe?How and where did life on Earth arise?These are the fundamental questions that we assiduously seek to solve and the core questions of astrobiology.With the significant advances in deep space exploration technology,we are much closer than ever before to answering these questions.Since Earth is the only planet known to has been supporting life with a history spanning over 3.5 billion years,the study of geobiology can effectively promote the development of astrobiology.In order to speed up the development of astrobiology,this paper first introduces the connotations and brief development histories of geobiology and astrobiology and demonstrates the two core scientific issues of astrobiology,namely habitability and the origin and evolution of life.The following session discusses the four components of the habitability of celestial bodies and how to determine whether the habitable environment produces life.The paper proposes three aspects that require further enhancement to connect geobiology and astrobiology:the evolution of early Earth's habitable environment,the features of life in extreme environments,and the identification of biosignature.
Keywords：habitabilitybiosignatureearly Earthextreme environmentgeomicrobiologyastrobiologyecosystems
Publication Date：2025-03-14
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：20( 857-876 )