Photo date: December 28, 2015. Photographer: Mark Mahin.
The photo below was taken in Grand Central Terminal in New York, and is one of the most dramatic moving orb photos I have ever taken.
Below is a closeup. There is a hazy pink blur, a sign of very fast motion. The object seems to make not just one change in direction, but two changes of direction. Neither dust nor birds nor insects ever make this kind of undulating zig-zag motion in such a short space.
these 21 photos, and the same "string of pearls" effect I have photographed in these 24 photos. See here for other cases of speeding pink orbs.
Below is the full original photo, which has been uploaded directly from the camera. Right-click to open the photo in a separate tab, to see it at higher resolution.
A skeptic might try to explain this as a coincidental arrangement of pink dust particles (which would be ridiculous, since dust particles aren't pink). Let's consider the chance of that happening. Once you had 1 pink orb in what looks like a chain of 5 orbs, you would then need to have 4 matches, so that a "string of pearls" effect was created. Each of these matches occurring in the right place (at the end of the "string") would have a probability of only about 1 in 1000 (given the large photo area). The chance of any new "pearl" being added to the "string of pearls" would be less than 1 in 100,000, since you would also need to have not just that "1 in 1000" position match but also an exact match of size and color to add a new "pearl" to the "string of pearls." So the total chance of this "pink string of pearls" being created by a random combination of dust particles would be something like 1 in 100,000 to the fourth power, which would be about 1 in 100,000,000,000,000,000,000. It also wouldn't work to imagine a super-fast pink dust particle, because indoor dust particles only move at the very slow pace of 2 miles per hour, and don't make sharp zig-zag motions.
I have an extremely wide variety of orb photos on this site, but I would be quite happy to defend the proposition that orbs are a paranormal phenomenon that we can't explain through anything we understand, by using only the photo here as evidence.
Postscript: I may note that after taking this photo I took hundreds of other photos with this camera on this night, and this was the only one showing such an anomaly. The photo was taken with a Sony camera that has performed flawlessly for almost a year. When this particular camera photographs someone's flash camera firing, it produces a single-ball bluish-white look that looks nothing like what this photo shows. An example is below. Such a thing doesn't even look like the blue orbs I photograph, as you see lots of rays radiating outward (which I don't see in the blue orbs I photograph at this location).