The Role of Atmospheric Composition in Defining the Habitable Zone Limits and Supporting E. coli Growth.

ABSTRACT: Studying exoplanet atmospheres is essential for assessing their potential to host liquid water and their capacity to support life (their habitability). Each atmosphere uniquely influences the likelihood of surface liquid water, defining the habitable zone (HZ)-the region around a star where liquid water can exist. However, being within the HZ does not guarantee habitability, as life requires more than just liquid water. In this study, we adopted a two-pronged approach. First, we estimated the surface conditions of planets near the HZ's inner edge under various atmospheric compositions. By utilizing a 3D climate model, we refined the inner boundaries of the HZ for planets with atmospheres dominated by H₂ and CO₂ for the first time. Second, we investigated microbial sur

SUBMITTER: Kuzucan A 

PROVIDER: S-EPMC11766661 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature