Mars Rock-Zapping Laser Explained
By Christina DesMarais, PCWorld Aug 18, 2012But what is it?
Here's an explainer, as well as more details about the mission.
ChemCam can look at rocks and soils from a distance, fire a laser to vaporize the materials and analyze them with an on-board spectrograph that measures the composition of the resulting plasma. NASA says ChemCam can also use the laser to do less destructive things, such as clear away dust from Martian rocks as well as use a












