Curiosity snapped this selfie May 12, 2019; to the left of the rover are its two recent two drill sites, “Aberlady” and “Kilmarie.” (Credit: NASA/JPL-Caltech/MSSS)

Finding the conditions to support life on Mars is the main goal for NASA’s Curiosity rover, and a new discovery of clay could be leading the rover on the right path. 

After drilling in an area on Mars dubbed the “clay-bearing unit,” Curiosity turned up two new samples that have the highest amounts of clay minerals ever found on