NASA's Curiosity Mars rover has used the drill on its robotic arm to take 32 rock samples to date. The Mars Hand Lens Imager (MAHLI), a camera on the end of the robotic arm, provided the images in this mosaic.
MAHLI was built by Malin Space Science Systems in San Diego. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Curiosity rover for the NASA Science Mission Directorate in Washington. JPL designed and built Curiosity.
More information about Curiosity is online at http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl/.