Jason H. wrote:
On Apr 18, 11:59 am, "Nunya" wrote:
Zoom in to the upper right quadrant of image "mars4RGB". In the valley near
the light colored ridge looks like rover tracks maybe? ...Or, Marvin the
Martian foot prints?

Wow, that's pretty interesting. Here's a link to the original
location of that file

http://hiroc.lpl.arizona.edu/images/...5_RGBsamp2.jpg

I think the upper more curving track was left by a boulder that rolled
down the hill. The boulder is at the end of the track.

But I think the other apparently double line may be either an artifact
or a real feature that is just below the resolution of the image,
resulting in an optical illusion (the segmented pattern). I think it is
most likely a line of exposed rock; the pixellation in sharp lines
running up/down and left/right creates the illusion of segments.

Note that there is a third line below and roughly parallel to the
second. It is faintly seen below the second line separated by about the
same distance as the other two. It shows a similar pattern.

Greg

--
Greg Crinklaw
Astronomical Software Developer
Cloudcroft, New Mexico, USA (33N, 106W, 2700m)

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