My eight-year-old son and I were taking a late night walk around midnight at 4th Street SW and Broadway in Minot, ND. We noticed overhead a large triangular object the size of a football field. Black with white lights, made no sounds, and moved very slowly from east to west. We just watched it in awe for about 15 minutes. Then it turned vertically and was gone in an instant. I wish I'd had my phone so I could have recorded this.