More Martian Anomalies ...

More negative images of the Martian surface showing the 'glass like' structures, in another location to the last batch; glass like structures which are hard to determine if they are 'evidence of tampering by human hands', or not. If the latter then do the glass structures resemble anything natural which could perhaps be explained away by some kind of 'lava flow' or similar volcanic activity? If the answer to this is no too ... then what? Glass like structures made by a civilisation on Mars?

This close up image of the glass structure band seems to reveal there is something behind the glass ... ?