Bright ball of light appeared twice. First time was under a minute. Second time for about 10 seconds.

I brought my dog outside for a potty break like I do every night before he is kenneled. At first I thought I was seeing a shooting star because of how high it was and its speed. Then this object that looked like a very bright white star, changed directions several times before coming to a stop. It stayed still for about 4 seconds and then shot up and off. Gone in an instant. I stayed outside looking at the sky questioning if I really saw it. Then within a few minutes the "star" reappeared in the sky, close to where it disappeared. It shot back across the sky this time from left to right, changing directions and then abruptly stopped and just sat there again. I grabbed my phone to video it but when I looked back up it was gone. I waited outside looking at the sky for at least another hour, but nothing else happened.
I am outside every night and I know the plane traffic in the area. I live a few cities away from an airport so I am very familiar with the plane routes, how they look, the blinking lights and the sounds. This was not a plane. It was way too high in the sky. I have never seen something move this fast. It was incredible to see. I'm not sure what it was.