For those that say that the red look on Mars' photos is the result of something else besides the dust in the air, I thought it a good idea to post a
link for today's (or yesterday's) news of the dust storm in Australia.
As I said here, I think it's a result of the way the photo was made, with
three different images from the three different channels taken at different times, so the green channel shows what's probably a dust devil while the
other two do not, making a green dust that's even more transparent than normal because it appears only in one of the channels.
I guess that may be included in the "picture error" category, although not really an error.