Russia's sky on fire: UFO or nuclear explosion?

A cloud of mushroom in the sky of Russia. If it had been spotted only a few years ago, it would surely cause a terrible wave of panic. Good thing we no longer live in Cold War times.

So what we see in the video above has nothing to do with nuclear explosions or heavy weapon testing. This is a beautiful weather phenomenon known as the Lenticular Formation, a rare stationary cloud formation that is often confused by unidentified flying objects - the famous UFOs. In addition, they are also avoided by airplane pilots due to the strong turbulence they offer.

In the case of video, the images were recorded at exactly the right moment, when the sun's rays at the base of the cloud give the impression that it is on fire.