posted on Jun, 12 2008 @ 03:03 PM
That look like dust particles.
The fact that they do not appear on the other photo is just because the camera is not the same, one is from the left camera, the other from the
right.
And if I am right, other photos from that camera should show the same "artifacts".
The previous photo from that camera (from Sol 1551) has the same "artifacts", except one, the one on the top left of the image, so I think they are
dust particles over the camera.
As for the other things, the ones on the ground, I agree, they look like the marks from the RAT, and the photo from Sol 1551 shows one more.
PS: thanks for asking my opinion.