Quote:
Originally Posted by Lee
I can see the two dark linear features in yours and the google image.... the google stuff is likely based on Hubble or imagers in Mars orbit - better resolution.
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There's stuff missing though. If the orientation is correct (there's no guarantee), the triangular dark patch at 7 oclock is absent or moved and intrudes much more into the disk than the brownish blob at 6 oclock on the Google Mars version.
Also, the dark area surrounding valles marineris (3 oclock) is much more extensive and straddles both hemispheres.
I would have thought that they are big changes that I don't think can be put down to resolution alone.
Best
Markus