"Curiosity's First Sample Drilling hole is shown at the center of this image in a rock called ""John Klein"" on Feb. 8, 2013, or Sol 182 operations. The image was obtained by Curiosity's Mars Hand Lens Imager (MAHLI). The sample-collection hole is 0.63 inch (1.6 centimeters) in diameter and 2.5 inches (6.4 centimeters) deep. The ""mini drill"" test hole near it is the same diameter, with a depth of 0.8 inch (2 centimeters). Credit: NASA/JPL-Caltech/MSSS Read more: http://www.universetoday.com/99911/historic-mars-rock-drilling-sample-set-for-analysis-by-curiosity-robot-in-search-of-organics/#ixzz2Mu1y6Fpr"