This happend in Yuma, AZ in 1997. My husband at the time was about 19 yrs old. He and his brother were outside shooting hoops in the street. They saw a very large craft slowly go over there heads. He said it looked like a triangle about the size of a football field. He said it was huge. And it had lights along the bottom of it. When it went over their heads, it was just above the street lamps. And it made no sound at all. Like, everything was silent. His brother’s girlfriend saw it too. He said, they were just too stunned to speak. It went in the direction towards Phoenix.
Several years after we were married, we saw a show that was called Phoenix Lights and he told me “see, that’s what we saw!” Lol. Wish I could’ve seen it but I think that was the day that Hale-bopp was in the sky. I do remember staying outside and watching it with wonder. I was 16 at the time.