Compared to the rest of the terrain it looks as though the image handlers were trying to highlight something on the surface but didn't make a very good job of it.
See image below. Adjustments made to brightness, contrast and colour saturation.
"All truth passes through three stages. First, it is ridiculed; Second, it is violently opposed; Third, it is accepted as being self-evident."
Arthur Schopenhauer
Crazy alienhead in apollo 11 footage : NASA scientist having fun ?
