the laser beam was diffuse because of refraction so it was changing shape, but not diverging over distance. We had a very special collimator on the laser as you see, the starting point is NOT a pinpoint!
this is important and have been talked about before! our laser is more than an inch at the start. our beam diverge at 15 miles is 4 inches, without refraction.
So what is this then? It appears to be about 20-30x as large