Journal
JOURNAL OF THE INDIAN INSTITUTE OF SCIENCE
Volume 103, Issue 3, Pages 721-737Publisher
SPRINGER
DOI: 10.1007/s41745-023-00382-9
Keywords
Extremophilic microorganisms; Analog environments; Astrobiological model; Space simulation chamber; Space exploration
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Discovering exoplanets and satellites in habitable zones has sparked interest in planetary settings that could support life. Extremophiles living in mimic outer space environments are of particular interest as they can provide insights into the possibility of life elsewhere. Laboratory-based simulation chambers are important in studying life beyond Earth and understanding survival mechanisms. This review summarizes studies on microorganisms from extreme Earth environments and highlights the importance of environmental simulation chambers in mimicking extraterrestrial habitats.
Discovering exoplanets and satellites in habitable zones within and beyond our solar system has sparked intrigue in planetary setting varieties that could support life. Based on our understanding of life on Earth, we can shed light on the origin, evolution, and future of Earth-like organisms in the galaxy and predict extinct or extant extraterrestrial life. Hence, extremophiles thriving in mimic outer space environments are particularly interesting as they exhibit traits that preponderate our comprehension regarding the possibility of life elsewhere and in situ life detection. Additionally, many extremophiles have been used for astrobiological research model organisms to unveil native alien life or possible life-produced metabolites outside Earth. Laboratory-based simulation chambers mimic this outer space condition, helping researchers study life beyond Earth in near identical conditions and understand molecular mechanisms for survival. This review summarizes relevant studies with isolated microorganisms from extreme analog Earth environments, harnessing them as promising astrobiological model candidates for pursuing life potentialities in other planetary bodies. We also highlight the necessity of environmental simulation chamber approaches for mimicking extraterrestrial habitats.
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