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Originally posted by Gazrok
Remember that most pics from space are mosaic composites, not just ONE picture.
Not to mention, from the scale of these photos, the "structures" (as you're assuming) would be on the order of "Grand Canyon-sized" and be visible from Earth-based telescopes I'd wager...
Originally posted by JudahMaccabbi
Good point, in that case the image in the last picture is approximately (probably smaller than) 170 by 50 km.
Is it on the far side of the moon?
Originally posted by Divergence
I use photshop a lot and it looks to me like it was "masked" and then "smudged".
If it was missing data the area would be speckly, indicating a random pattern of random noise.
On the first photo you can see were the detail sort of "melts" toward the bottom of the frame. This is a clear indication of the smudge tool being used.
If these photos were altered by NASA then they have a novice on the job.