NASA's Curiosity Mars rover has collected 36 powderized rock samples with the drill on the end of its robotic arm. This grid shows all 36 holes to date. The images in the grid were captured by the Mars Hand Lens Imager (MAHLI) on the end of Curiosity's arm.

Curiosity was built by NASA's Jet Propulsion Laboratory, which is managed by Caltech in Pasadena, California. JPL leads the mission on behalf of NASA's Science Mission Directorate in Washington. Malin Space Science Systems in San Diego built and operates Mastcam.

For more about Curiosity, visit http://mars.jpl.nasa.gov/msl or https://www.nasa.gov/mission_pages/msl/index.html.