posted on Aug, 25 2009 @ 02:12 AM
I believe these orbs are the result of the flash and moisture/water particles in the air.
I live next to a cemetary and I go outside all the time and just take random pictures in the dark in hopes of maybe catching something.
I have found that the more humid or cool(after a hot day) it is the more orbs I can capture in a single pic.
For example, i've taken pictures on foggy nights with the flash on and there is so many orbs that you can't make out anything else.
Not saying all orbs are caused by the above theory, but in my experience this seems to be the case.