
- some numbskulls take this sort of thing seriously, so here's how it isn't really a bootprint.
The wheels of the Opportunity Rover are ten inches wide. Compare the wheel prints to your pic's faint artefact.
Your pic's "boot print" is, by a rough estimate, only about half that size in length (a very small shoe), and a very faint impression.
The Rover - adjusting for Martian gravity - weighs about 140lb: around the weight of a slim adult on Earth. It spreads that weight over six wheels, and makes obvious, thick, clear tracks in the dust.
If a person wearing boots stood on the same surface, we'd see a much deeper, more defined, larger impression.
Me, I can't see anything more than a vaguely lozenge-shaped patch of dust among many others in a vast panorama.
( , Sun 8 Jul 2012, 23:04, Reply)

with such clear and concise logic at least include some marsh gas or diffraction of light references as well
( , Sun 8 Jul 2012, 23:07, Reply)