posted on Feb, 7 2010 @ 12:01 PM
Originally posted by Zanti Misfit
Another Pic. of possible Water filled Lakes as of today , Unconfirmed do to resolution issues.
I decided to investigate a little more about that image and that area.
According to this page
, the "sun azimuth" for this photo is 52.32º, and
that would mean that the sun is shining in the direction of the arrow on the following image.
If that's true, then the white edges we see on the "lakes" mean that they are not lakes but mesas.
So I went looking for more photos of that area, and found another photo that shows the same "lakes", photo
, but although the resolution is better the image is worse, with lots of
noise, but once again the direction of the light "says" that these are mesas and not lakes.
I also found a HiRISE image, that although not showing the same place it shows a place some 4 km to the Northwest of this area, image
, and although, once more, they look like sunk areas, the direction of the
sunlight points to contrary (the sunlight is also coming from the bottom-right corner).
(zoomed to 25%)
Apparently, it's an optical illusion that makes us see those as "lakes" instead of mesas, even when I see them as mesas, if I look to something
else and look again, they look like lakes again.
PS: even if those areas are not mesas, we can see on the HiRISE photo that there isn't any water there.