posted on Jun, 12 2009 @ 10:40 PM
That's most likely the way the images are stitched together to form a seemingly seamless picture.
A common misconception is that all of the image is from satellites, that's not the case, after zooming in so far your actually looking at an ariel
picture taken from an aircraft - so I would guess at the point the cloud 'appears' that's the switch over.
Sometimes you can see things like massive shadows suddenly dissapear as you zoom in - It's just the pictures were taken at different times of the
Edit: I'm seeing the cloud in both GE and GM but it's there all the way through the scroll
Mind you mountins do form their own weather
systems so I don't really have much of an opinion on it.
[edit on 12/6/2009 by Now_Then]