Curiosity rover warms up its laser with basaltic rock blast
 

Intrepid 6-wheeler Curiosity perhaps protested too much when it tweeted "Yes, I've got a laser beam attached to my head. I'm not ill tempered; I zapped a rock for science." NASA turned the rover's high-powered laser loose with 30 pulses of a million watts each, reducing a thin layer of the chosen stone, dubbed N165 "Coronation," to plasma. The resulting spectrum was then analyzed by the on-board "ChemCam" to determine its composition, and the US/French team who developed the system said it's working even better on Mars than it did on terra firma. The results are now being studied, but if we had a laser beam on another planet, we'd be firing it all over the place -- in the name of "science," of course.

http://www.engadget.com/2012/08/20/c...r-tests-laser/