I was outside my home with my girlfriend, suddenly I noticed an object above my head. It was a massive circular object with around 10 lights on the outside. The lights on the outside spun around with one massive light in the middle. I could see the outline of the object as it was illuminated by the lights of the craft. When I proceeded to point the object out to my girlfriend it disappeared with the speed of nothing I have ever seen before in my life. It nearly faded away at light speed. She did see something she told me. So I knew I wasn't losing my mind.