I've twice seen things that I don't think humans made or manned. In 2005 I was coming down from Line Creek near the Wy./Mt. border . Clear blue sky. A Vee formation of round lights. I can't remember if it was 2 or 3 on the bottom and 3 or 4 on top. It was a vertical V though. They were parallel to hwy 120 going towards Billings. They came from right to left so fast if you'd of blinked you'd of missed them. Beyond hyper sonic I would guess. I looked over at my my buddy and he asks , did you see that ? I said yes, what the heck was that !?! The lights were bright white in the middle of the day. I know it wasn't comets, metors or falling star or satalites. I'd guess less than a mile up. More like a half mile. Still freaks me out when I think about it. At least I had a witness!