[Soliton]

Clearly ice boulder trails. Ice boulders roll down hill and sublimate in the sun. Next question?

[Swordmaker]

Clearly ice boulder trails. Ice boulders roll down hill and sublimate in the sun.

Interesting theory. And the craters at the bottom of each channel are caused by bouncing boulders?

Next question?

Where'd the ice come from?

[Bringbackthedraft]

Giant worm trails? There has to be spice on that planet?

[Swordmaker]

Clearly ice boulder trails. Ice boulders roll down hill and sublimate in the sun. Next question?

I got to thinking about your theory and decided to check some dimensions. The gullies average about 7 - 8 pixels in width and NASA says that the resolution of the full size image is approximately 3 Meters per Pixel... ergo, the channels are approximately 21 to 24 meters in width... that's some ice bolder...