Don’t worry about it.
Are you thinking it’s something other worldly? You’re not saying that, are you?
I don’t believe in UFO ET’s and Art Bell stuff.
One time I and a friend were driving up through AZ from Phoenix to the 40 at night and saw a light that was a UFO in that we really couldn’t figure out what it was.
But I don’t chalk it up to any ET or other Art Bell type nonsense.
I figure it’s something being tested out from an Air Force base.
Yours could be the same or it could be atmospheric or meteor.
If I would be one to venture a wild guess, I would think it could be something returning from orbit and heading eventually towards a landing in an area somewhere withing the western/southern states. It was very high up from my viewpoint and went dark high up as well.
Gordon Cooper didn't "believe" in them, either. He only saw them and, more than once, gave chase in fighter jets.
But he didn't believe in all that "nonsense," either.
Worth reading: "Leap of Faith: An Astronaut's Journey into the Unknown," by Mercury 7 astronaut Gordon Cooper. Most of the book is about the space race; only a small portion deals with Gordon's experiences with UFOs and the U.S. military's heavy-handed censorship of any and all evidence.
So either I must assume Gordon Cooper was a liar of pathological proportions ... or that there's a lot more going on "out there" than we puny humans know.
You can go ahead believing that we humans know it all. Meanwhile, I understand that "there are more things on heaven and earth, Horatio, than are dreamt of in your philosophy."