It was a grey looking object with lights all around it blinking in different colors.

Early mornings, I would get up at 6:00 to get my grandchildren ready for school and I would drive them to the church right behind where we were living.  We would sit in the car waiting for the school bus, when we looked up, there was a circle looking grey UFO was in the air flying pass the car.  Then we looked to the right and we saw lights blinking in a row in the air for about 15 seconds and then disappeared.  This would happen every morning. The object would be flying so fast, that it would be gone in a second.  We would take walks and we would see dead cows with perfect holes in their bodies, no flies blowing it, and no blood surrounding the body of the cow.  We have foxes, dogs, and other wild animals out there, but none would eat the meat of the cow.
Another sighting was in 1975.  MY CHILDREN AND  A EX-HUSBAND WAS DRIVING THE CAR IN Elizabethtown, Kentucky,  When one of my sons asked, "What was that in the sky?  When we looked up it was a grey circle-looking UFO hovering over the car in the air, keeping up with us as he was driving.  
He stopped the car to turn around and the object flew away fast and left us in a second.  It was six of us in the car that saw the object.  My niece saw a UFO in Hopkinsville in the air hovering over buildings in Feb. 2017.  It scared her so badly, she called me and told me what happened.  It was two people in the car that saw this.