The driest place on earth

July 18, 2011

The Atacama Desert of northern Chile is the driest place on Earth, completely devoid of plants, animals, and many microbes. ESPM scientist Ronald Amundson and his colleagues across the campus are using field research and chemical techniques to determine how old the desert is, how the landscape has evolved during millions of years of near-lifelessness, and how microbial life has adapted to these harsh conditions.

ESPM researchers have also determined that the soils of the Atacama Desert have many similarities to those of Mars based on comparisons to data obtained by the recent Mars rovers.

By understanding the relations between Chilean soil chemistry and the scant rain water it receives,  we have learned that Mars soils appear to have received rain or snow water relatively late in Martian history, which suggests, along with other independent observations, that Mars has a complex and rich climate record.

For more information:

History of the Atacama Desert

Atacama Desert and Mars Soils