UFO's

I don't think we have had one thread dedicated to this or not..but I'm sure many of us have witnessed some things in the sky that we can't explain.

I think the only time I've seen something in the sky that I don't know what it was, was several years ago when I was walking home after work and I was about halfway down the road where I was walking when I saw this stream of green light go across the sky that was going at an incredible speed that was way too fast for a plane. Whatever it was, I could not see it outline or shape but it certainly was something. The disappointment was I did have my camera with me at the time and didn't capture it!!