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I want to know how they were able to hide the camera that took the picture. I don't see any part of the arm with the camera, any difference in shadow, but I do see a warping effect on one of the wheels.

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The camera is on the end of the arm at the bottom left in [1]. By comparing that to this picture you can see where part of the arm is in the self-portrait, above and to the left of the front-most wheel. The third-person perspective in the self-portrait comes about because the robot arm will always move out of the way of any photo that the camera is taking.

[1] http://en.wikipedia.org/wiki/File:PIA15279_3rovers-stand_D20...

um whats up with the guys face in that pic?

its obvious, the mars rover just asked john carter to his picture.

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