" Red residue clinging to the scoop walls is from a sample collected earlier from a drift of windblown dust and sand called "Rocknest.
FORBES: First Curiosity Drilling Sample in the Scoop
This week the team decided to use a scoop on the arm to dig up a sample of dirt and found it contained about 1 percent water ice, NASA researchers said.
CNN: Lander grabs Mars water, will see if it's life-supporting
The image was taken after the sample was transferred from the drill to the rover's scoop.
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