When I was 12, I was out in the yard with my dad and brother.It was around 7:00 p.m., the Sun was down but it was still light.
I happened to look at the Moon because it was full and beautiful.
As I was looking at it, something looked like it came out from behind the bottom on the Moon, travelled up the side and disappeared behind the top of the Moon.
I hollered at my dad and brother to look at the Moon and they looked up in time to see it disappear behind the top of it.
I don't have a clue what it was, but it must have been travelling at a tremendous rate of speed to go up the whole side of the Moon in about 4 seconds.
I have always wondered what it was.