Microbes in Atacama desert's lost lagoons may mirror early life on Mars 

 A jaw-dropping ecosystem of crystal-clear lagoons and salt plains in Argentina's Puna de Atacama desert could offer a window onto early life on Earth and Mars. 

https://cdn.mos.cms.futurecdn.net/ttG58CqhX5nrJcZR9B2qik.jpg

https://www.space.com/lost-world-of-lagoons-atacama-desert-mars