The advanced capabilities of Curiosity Mars rover have allowed us to do more in the (unmanned) exploration of this planet than has ever been possible. This picture by the Mars Hand Lens Imager  shows the shallow drill hole (and the residue piled up around it) completed by the  Curiosity Mars rover. This experiment is part of the Mars Science Laboratory initiative and will be evaluating a rock target called “Windjana“. Curiosity is expected to drill deeper (up to 2.5 inches) and evaluate both the drilling and the martian samples it collects.