A History of Cosmic Habitability

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Amedeo Balbi

Abstract

Our understanding of the universe is based on the big bang cosmological model, which describes an expanding universe whose development began 13.8 billion years ago from a hot, dense state. This model introduces a strong evolu-tionary and historical perspective to the account of many observed physical phenomena, including the origin of life and its possible distribution in the universe. I discuss how properly taking the “big picture” and its temporal unfolding into ac-count is relevant for the scope of astrobiology and SETI (the search for extra-terrestrial intelligence).

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