A Sandy Martian Self-Portrait

Just a reminder that this picture was taken by a one-ton plutonium-powered laser-eyed robotic mobile chemistry laboratory sitting on another planet. But I can't leave it there, of course. First, the self-portrait taken by the Curiosity rover on Mars is a combination of 57 separate photos taken by a camera on the end of the rover's robot arm. You don't see the arm because the pictures are cleverly stitched together using only angles where you can't see it. That gives the result the feel of a vaca...