Dust Storm 2009
The Vernal Equinox - 23 September 2009 - dawned bright crimson in a most disturbing demonstration of the awesome power of natural forces.
Here is the view that greeted your correspondent - at home - first thing in the morning:
The colours shown here are accurately depicted. They have not been "enhanced" in any way.

Below is the view from PHS, a little later:

By way of comparison, here is the same scene five hours later, when the worst of the dust had dissipated:


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