Very bright round vessel low flying darted across the sky for seconds and upruptly went dark.

I went out to my driveway to check on my new car and immediately noticed a cylinder object that was brighter than the full moon. There was not a cloud in the sky. This was NOT a shooting star or an aircraft as planes are and were way above this object. The UFO was flying west to northeast horizontally across the sky at a rate of speed that was extremely fast, and I mean FAST! After seconds of my watching it the SUPER BRIGHT light went completely dark. There was not any trail or fuel smoke left behind. The abundant stars and full moon allowed me to see clearly. I am 60 years old and I have never seen anything like this and it is something that I will never forget! The local Sheriff's office had no other reports as I called them right after. I've been back outside twice and only saw a couple of regular aircraft much higher, much smaller, moving slowly with blinking lights that were obviously jetliners. I do not believe anyone on Earth has an aircraft that can maneuver or cloak itself like the UFO I witnessed.