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352 pages, Hardcover
First published March 22, 2011
"The RAC (Robotic Arm Camera) is attached to the RA just above the scoop. The instrument provides close-up, full-frontal color images of the Martian surface close to the ground, under the lander, or anywhere the RA can go. Its got all kinds of filters and scientific attachments to capture and makes sense of extreme close-ups of dirt or whatever else Phoenix can dig up. I for one am hoping for a secret decoder ring."