This color image released by NASA and acquired by NASA's Phoenix Mars Lander's Surface Stereo Imager on Friday, June 13, 2008, shows one trench informally called "Dodo-Goldilocks" after two digs on June 12, by Phoenix's Robotic Arm.
Shallow trenches excavated by the lander's backhoe-like robotic arm have turned up specks and at times even stripes of mysterious white material mixed in with the clumpy, reddish dirt.