Look at the rock on the right, and the lack of rock on the left. (Our left.) It is being reported that this jelly-donut size rock appeared out of nowhere on the Martian surface between photographs.
There are several possible explanations for this.
1) It grew there.
2) It was ejected from a steam vent or something and flew there.
3) This is what a Martian looks like. It will eventually move on.
4) The robot that took the first picture tossed the rock up while driving by.
5) It is a jelly donut.
6) The rock was placed there to cover up a footprint.
What do you think?
I love it when stuff like this happens.