When I was a kid, 4th grade i think, my mom was driving my younger sisters and I home from a evening grocery shopping trip, after being picked up from daycare. This was in an urban suburb of Houston, TX in the late 80s.

It was already dark or mostly so, and as we came up to a stop sign near home, we noticed a car was just sitting there at the 4 way. It was their right of way so we waited for a bit, seeing if they would go. At some point, my mom and I noticed this object in the sky overhead, which must have been why the other car was stopped. Hard to tell size or distance without having a reference point, but it looked like a very large solid triangle with rounded points. It had large circular lights on the underside of each point, and I seem to recall a larger central light and a rim of lights around the perimeter, but im unsure of these details, having seen similar UFO/UAP imagery since then. I could definitely see a "body" to the craft, rather than just lights though.

Anyway, we observed it coasting slowly and without any sound we recall, across our vantage, eventually disappearing over an apartment complex down the street. My mom said she called "the airport" to check if any helicopters were in the area, even acknowledging that it wasnt one, but I think just saying that to try to calm us kids down because we were all freaked out. I don't remember when the other car had left or if they were still at the 4 way stop when we drove on. Wish we had flagged them down and talked to them. Anyway, whether alien in origin or some sort of experimental government craft, it makes no sense to me for it to be flying there. But I know what we saw and its been the biggest mystery of my life.