Curiosity tastes scooped & double-sieved sand

msl20160121At its current location for inspecting an active sand dune, NASA’s Curiosity Mars rover is adding some sample-processing moves not previously used on Mars.

Sand from the second and third samples the rover is scooping from “Namib Dune” will be sorted by grain size with two sieves. The coarser sieve is making its debut, and using it also changes the way the treated sample is dropped into an inlet port for laboratory analysis inside the rover.

Positioning of the rover to grab a bite of the dune posed a challenge, too. Curiosity reached this sampling site, called “Gobabeb,” on Jan. 12.

“It was pretty challenging to drive into the sloping sand and then turn on the sand into the position that was the best to study the dunes,” said Michael McHenry of NASA’s Jet Propulsion Laboratory, Pasadena, California. He is the Curiosity mission’s campaign rover planner for collecting these samples. [More at link]

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