Small silver ball

One silver ball traveling very fast high up 100 mph like a star then another silver ball moving very slowly just above the trees almost as if it was a drone searching for something or it was looking at us pointing at it But this clearly was not a drone there was no sound or wings or motor just like a almost glowing silver ball the size of a tennis ball. It was moving around like a drone would so I can 100% say this was not a bird or piece of fluff or plastic.