This is your employment contract clonazepam. 5 mg get high But rocks buried deep underground get protected from this high-energy radiation bath. So the best place to search for organic molecules would be to drill deep down, while Curiosity???s drill only reaches a few centimeters into the ground. But there are also natural processes that expose deep rocks. Erosion from wind or water can eat away at the surface, revealing fresher material. Curiosity was able to analyze the rocks at Yellowknife Bay and determine that they had been exposed on the surface for a relatively short period of 80 million years.