Frost on Mars? Curiosity uses its laser to probe mystery

Frost on Mars? Curiosity uses its laser to probe mystery (#PewPew) - latimes.com: "The Mars Curiosity rover, cozy at the sandy, windblown patch of ground called Rocknest, pulled out its laser late last week, aimed it at a target about 9 feet away and started zapping.

The goal? To find out whether frost accumulates on Mars' surface at night, according to Roger Wiens of Los Alamos National Laboratory.

"The idea was to take one measurement of Crestaurum at night and one during the day for comparison," the scientist and principal investigator for Curiosity's ChemCam instrument told the Los Angeles Times."