UFO - A silver grain of rice against the sky

When my first remembered UFO sighting occurred, I was in school in the 7th or 8th grade in a city near Phoenix, Arizona. It was probably around 1966 or 1967.

For some reason, the class was on the playground behind the school, perhaps to draw the mountains in the distance for Art class. The sky was a brilliant blue, with only a few small clouds at the edges. I decided to look at the sky and see if I could find any UFOs. The sky was so bright, it was hard to look at. I kept squinting and turning away from it. I finally found something, like a silver grain of rice, far, far away. I looked at it for a while. It didn't seem to be moving, and it had no trail. It was just surrounded by the brilliant blue sky, with no reference points, so it was hard to tell if it was completely stationary. I finally decided to show it to another kid. After much pointing on my part, he finally saw it, too. It was very difficult to see, almost lost in the blue sky. He didn't know what it was, either. I finally went back to what I had been doing.

Much, much later, in the 1990s, I saw some strange things in the skies in Nevada. There are so many military bases there, though, that these were almost certainly military craft of some kind.

One time while driving at night I saw, flying over a small town that had a military base, the dark shape of a plane. All of a sudden, twin trails of glowing green smoke came from the wings. The smoke just came out for a second or two and then stopped. Chemtrails, perhaps?

Another time, while driving through the Nevada desert at night, I saw a triangular formation of lights flying around. It was too dark to see any details; all I saw was lots of lights in a triangular formation. I guess it could have been a group of planes flying very close together, in a very tight formation.