Bright triangle in the sky rotating, maybe a pyramid. 6 dim, blinking red and green lights circling each other. Came out of nowhere.

First time posting here. I’ve been seeing these lights in the sky at least three times in the past year but this was so strange I had to report. It was dark and I was driving from Loveland to Fort Collins when my sister and I saw a bright star. Together, we think we’ve seen this before, coming home from DIA. This time, the star was so bright, and changing in intensity that we stopped. We had to squint to catch the outline of the strange light but when we did, it was pyramid shape with what looked like a rope of light hanging from one corner. We stared for maybe an hour when out of nowhere 6 smaller, less bright, blinking red and green grafts appeared over the mountains. Two of them circled each other and the lights eventually went separate directions. I think three of them are still over the mountains. I had to take my sister (21 yrs old) because she was freaked out and was getting anxiety. When I went back to the same exact spot, pulled over on the side of the road, the bright triangle was no longer there and the blinking red and green lights were gone except for three. They’re spread out but still high above the mountains, relatively close. I left because they weren’t moving but I finally felt the need to report something on here. That was really strange. Also, what looked like a line of smoke, appeared briefly when the blinking lights showed up and then it move in a straight direction at slow speed before I lost track of it when I was counting the blinking lights.