Life on Mars could have arisen without water.
The Atacama desert is the most arid on the planet. However, despite the almost complete lack of water and continuous ultraviolet irradiation on the stone rocks are colonies of microorganisms.
The climate of the Atacama desert-like climate on Mars. At the same time in 2015, NASA scientists have discovered salt water in liquid form. It appears on the equator of the red planet in the warm season. This allowed them to assume that there may be life.
However Chilean scientists believe that life on Mars could arise without water just as it appeared in the Atacama.
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