Curiosity stunned NASA engineers when a rock it drilled on Mars came completely out of the ground and stayed stuck to the rover’s drill. Credit: NASA/JPL-Caltech A newly released series of images captures an unusual moment for NASA's Curiosity rover on Mars after a rock became stuck to the drill at the end of the rover's robotic arm. Engineers eventually freed the rock by moving the arm and repeatedly operating the drill over several days. The full sequence was recorded by Curiosity's black and

Tag-uri: accident