Riverton Wyoming around 930 pm I saw the moon on the left side of my home. Around midnight I was getting in bed when I saw a very large light moving,I went outside and to the right side of my home was what I thought was the moon. I laid back down and heard like a buzzing snapping sound I looked out and this massive light was moving back and forth. Tha light was so bright it lit up my yard and room too. It moved away and back.i asked around and others seen it too.