At 9:45 pm, I was walking north on Fulton. Here in Denton, it's clear skies with a waxing moon, but a thunderstorm in Oklahoma was really lighting up the northern horizon, and I was watching it blaze away as I walked. My attention was focused on the sky, and as I was passing the high school, I saw a bright green light, falling from the top of sky and down, northward. A green meteor! Must be a piece of on-fire nickel, burning green - that's what I thought at first - and then it just abruptly disappeared. No sparks, no luminescent trail, no after-image. Then it appeared again, still moving along the same path. Then it disappeared again... was it blinking? Yeah, it was blinking. Huh. Must not have been a meteor after all. Then it stopped blinking and accelerated, and I lost sight of it behind the football stands.What the heck was that, thought I? An airplane? I've never seen an airplane with just one green blinking light. Red light-blue light, red light-green light, yeah... but never just green light-green light. Whuthuh? What the heck was that? A drone? Definitely not a UFO, right? Well. That was weird.I had just about settled down again to a regular pace when I saw a spire of light appear suddenly to the north. It was long and tapered, like an icicle, and it was either shining up from the northern horizon like a stalagmite, or shining down from the clouds like a spotlight. I couldn't tell which, but it was moving from east to west, covering about 10 degrees of arc per second.Now, seriously. Come on... WHUT. THUH? I watched it for about five seconds, in a kind of stupor, until it moved behind some trees and I lost sight of it. I ran back toward the football field and past the stands to get a better view, but it had disappeared. I stood still for about a minute, watching the sky and wondering what would happen next... and then the green light appeared again! It was closer this time, and I could see that it wasn't a single light. It was actually three green lights, huddled closely together, in the shape of a triangle...HUH??? I watched as it hung in the air, perfectly still, and then it began to move to the left, accelerating. It went out again for about two seconds, and when it came back on it was perfectly still. Then it moved again, to the right this time, and then it went out again. When it came on again it described a speeding up, slowing down, to the left then to the right, then up, and then a sharp curve downward motion, and then it accelerated along its original path and disappeared. It didn't appear again.WOW!!! HOW COOL WAS THAT???