I was at a party in Denver, 1974. We saw something, a large circle with red lights around the perimeter. It was a clear night, it blocked out the stars. Saw it for 15 minutes. The next day the official explanation was a formation of helicopters. We didn’t hear any sound at all.
in 2015, the wife and we’re in the hottub watching the sky, looking for satellites. We typically were seeing 5-8 per night. We saw one headed due north, when it literally made a right turn and headed east. Satellites typically move 15,000MPH, so no explanation. Kirkland, WA.