Dust?
There are plenty of sites out there looking at this stuff.
I can't just call up the photographer and ask him what kind of lenses he's using.
Orbs ARE showing up in lots of places, and they are making a good case for some of them NOT being dust or moisture. But true anomalies.
Don't worry about me Doug, I really will be allright.
But after all these years, you should know I look into these things.