In utan, rt 191, near mile marker 88 looking north. light was very quickly pulsing various colors. nothing else in the sky looked like this. after watching it for a moment, it appeared to travel east.. so i thought it was a plane, however, then it stopped and reversed direction. then it zoomed straight up and a high speed. then it went diagonally toward the west. then it kept doing exactly that, zigging and zagging in all different directions. i looked at this light through an infrared night vision binocular and could see that this object appeared to be a ball of swirling energy, but also, i could see a few other objects in the sky in proximity to this light that appeared to sparkle for lack of a better work. we observed this for about 20 minutes or so until it zoomed straight up into the clouds and didn't reappear. my feeling at first was excitement, then fear. thats what made me look at my phone to see what time it was and actually made a note in my phone of the exact time just in case something odd happened. i was frightened but couldnt take my eyes off of it. i tried several different means of recording it but only my cell phone was able to record it.