I've never seen anything like it.The UFO I saw in the sky was a lemon yellow, oval-shaped object about the size of a football feild or larger with a cloud of yellow around it.It had a line of many red, circle-shaped spots across the middle at the halfway piont. There also was a white trail following after it. The trail was sparkley like diamonds that began to fall and fade out of the sky. The object remained in the sky for about 30 seconds.The craft seemed to move slowly in a slow clock-wise fashion in a straight line from South to North and then suddenly took off with unbeleiveable speed before it disappeared. The white trail remained for one minute or so after the UFO was out of sight. This is diffeent than the one I saw before. It made my windows vibrate with the low humming sound that came from it. I tried to take a picture of it with my picture phone but the phone was saying "Error" Every time I tried to take a picture, and I had enough space avalible!