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Curiosity Rover Fires Over 100,000 Laser Blasts

Curiosity Rover Fires Over 100,000 Laser Blasts

NASA JPL
December 5, 2013

NASA’s Curiosity Mars rover has passed the milestone of 100,000 shots fired by its laser. It uses the laser as one way to check which chemical elements are in rocks and soils.

The 100,000th shot was one of a series of 300 to investigate 10 locations on a rock called “Ithaca” in late October, at a distance of 13 feet, 3 inches (4.04 meters) from the laser and telescope on rover’s mast. The Chemistry and Camera instrument (ChemCam) uses the infrared laser to excite material in a pinhead-size spot on the target into a glowing, ionized gas, called plasma. ChemCam observes that spark with the telescope and analyzes the spectrum of light to identify elements in the target.

“Passing 100,000 laser shots is terribly exciting and is providing a remarkable set of chemical data for Mars,” said ChemCam co-investigator Horton Newsom of the University of New Mexico, Albuquerque.

 

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image credit: NASA JPL-CalTech

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