I was outside and looked up and saw a triangular shape flying few seconds later it disappeared with a flash of light.

I was outside and I looked up and saw a triangular shape flying not very high above me. Maybe approximately 60 feet above the tallest trees in the distance. Initially I thought it was a drone but it was too big but also too small to be a plane. Maybe the size of a small 4 door car. It didn't make any sounds like a plane or helicopter would. It was quiet. There was a light at each corner, a green, silver, and red. The green was pointed at the "top" and then in clockwise was silver on the bottom right and red at the bottom left corner. It was flying northeast and I watched it for approximately 15 seconds and it disappeared. I then turned towards my left and looked up and a silver flash caught my eye. It seemed to be going up. It literally only last a second maybe less and was gone in the blink of an eye. It too looked triangular but because of the angle it seemed to be going, I only could see the base of it. So like a triangle with the top missing. It flashed a really bight Silver and then was gone. I went and got my husband and then we both stood outside for quite a while afterwards but saw nothing else. I then got online to try and see if anyone else may have saw or reported what I did and came across this reporting site. I was hesitant to report but at the urging of my husband I did. I've only ever seen one other weird object in the sky many years ago when I was younger but nothing ever like this. It was so clear and looked nothing like anything I've ever seen before.