NASA obtains sample from rock on Mars

First sample drilling by NASA's Curiosity rover. Credit: NASA/JPL-Caltech/MSSS
 NASA's Curiosity
Schematic drawings of NASA's Curiosity rover on Mars. Credit: NASA/JPL-Caltech
Curiosity's extended arm
End of Curiosity's extended arm Credit: NASA/JPL-Caltech

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Mars rock sample breakthrough

The NASA Mars Rover Curiosity has sent images confirming it has obtained the first sample ever from inside a rock on another planet.