Oh look, it's this again.

These black smoke rings are caused by exploding electric transformers.

The aliens have been eating at Taco Bell again...

https://www.youtube.com/watch?v=yCpUl7pFOBE

Interdasting. They talk about the aliens writing in rings.

Let the conspiracy theories flow!

Jokes aside, these Smoke Rings are seen worldwide. Sometimes there's a cover story, but the cover stories don't fit every time.

bugs

I know this area, a lot of trains go through Bonner Springs. Could it be a diesel smoke ring?

I saw two Boys behind the barn,LOL.

It's just a smoke signal from the reservation telling someone that dinner is done.