We were sitting in our backyard enjoying the night sky and suddenly we saw an orb flying across the sky and as we saw the first orb fly above our home, another orb came over, following the first. We were in shock and suddenly we saw another and another, for a total of 20 orbs. It was round, very bright and no sound was heard. They moved very fast and at times hovered momentarily and then moved quickily through the night sky. We lost sight of the object as it moved across the night sky to the northwest. Momentous event as we have never experienced anything like this before.