We were driving along taylorsville road in louisville, kentucky on the edge of jefferson county. it was 3am and we saw a bright orange orb across the sky. initially thinking it was a planet, it appeared to get closer and we stopped on the side of the road to look at it. it got closer and closer and the lights changed from a orange orb to 6 regular lights (i think) with a green light. the object of the ufo was triangular and it didnâ€™t have normal plane lights of red and white blinking. as it got closer, it didnâ€™t emit sound and it went almost directly above us within 500 feet. it didnâ€™t make sound and it was very strange. it was either a stealth government plane or a ufo. it was too large to be a drone.