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Frontiers | The Atacama Desert in Northern Chile as an Analog Model of Mars

The Atacama Desert is by far the driest and oldest desert on Earth, showing a unique combination of environmental extremes (extreme dryness, the highest UV radiation levels on Earth and highly saline and oxidizing soils), explaining why the Atacama has been largely investigated as a Mars analog model for almost twenty years. Based on the source and the amount of water available for life and its analogy with Mars, two ecosystems are of interest in the Atacama; its Coastal Range and the much drier hyperarid core, which we here review in detail. Members of the three domains of life have been found across these ecosystems living at the limit of habitability, suggesting the potential dry limits for each domain, and also unveiling the highly patchy distribution of microbial life in its most extreme regions. The through study of the Atacama have allowed to understand how life has adapted to its extreme conditions, the specific habitats that life occupies in each case, (thus suggesting the mos ....

Cerritos Bayos , United States , Salar Grande , Iii Region , Maria Elena , Lomas Bayas , Salar De Llamara , Region De Tarapaca , Cordillera De La Sal , La Portada , University Of Wisconsin , Myears Michalski , Mars Cushing , Mars Navarro Gonz , Pacific Ocean , Fitz Roy , Patrick Jung , Mars Azua Bustos , John Wiley , Mars Marscavecatalog , Victor Robles , Chong Diaz , Charles Darwin , Firmicutes Bacillaceae , Yungay Navarro Gonz , Yungay Warren Rhodes ,

Is there life on mars today and where?

In a comment published today in Nature Astronomy, Dr. Nathalie Cabrol, Director of the Carl Sagan Center for Research at the SETI Institute, challenges assumptions about the possibility of modern life on Mars held by many in the scientific community. Cabrol theorizes that not only life could still be present on Mars today, but it could also be much more widespread and accessible than previously believed. ....

Rebecca Mcdonald , Noachian Hesperian , Nathalie Cabrol , Astrobiology Institute , Carl Sagan Center , Mountain View , Nature Astronomy , Climate Science , Space Planetary Science , Planets Moons , ரிபேக்க மக்டொநல்ட் , கார்ல் சாகன் மையம் , மலை பார்வை , இயற்கை வானியல் , காலநிலை அறிவியல் , இடம் கிரகங்கள் அறிவியல் , கிரகங்கள் நிலவுகள் ,