From the Article

>A newly developed machine-learning tool could help scientists search for signs of life on Mars and other alien worlds.
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>With the ability to collect samples from other planets severely limited, scientists currently have to rely on remote sensing methods to hunt for signs of alien life. That means any method that could help direct or refine this search would be incredibly useful.
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>With this in mind, a multidisciplinary team of scientists led by Kim Warren-Rhodes of the SETI (Search for Extraterrestrial Intelligence) Institute in California mapped the sparse lifeforms that dwell in salt domes, rocks and crystals in the Salar de Pajonales, a salt flat on the boundary of the Chilean Atacama Desert and Altiplano, or high plateau.