I could have sworn I saw one today streaking across the western Colorado sky about 5:30pm. It looked like the pictures I have seen of such events. It went very fast too - and I thought it might be a plane, but there was a plane in my sky view also and it looked completely different - much slower - straighter across the sky, whiter contrail. Anyway, I have been looking for someone else who might have seen it but nothing yet on the internet. I could not take a pic as I was driving in crazy traffic.
Trust in the Lord with all your heart and lean not unto your own understanding. In all your ways acknowledge Him, and He will direct your paths. Proverbs 3:5-6