This article is taken from Les Indispensables de Sciences et Avenir #210 July/September 2022.
This phenomenon is so unique that most of the scientists who study it have never seen it in nature! However, ball lightning exists: it is evidenced by a lot of evidence, relatively consonant, once shaken off from beliefs, inevitably caused by a witness in front of this strange, and sometimes terrifying, luminous ballet. It usually appears during a thunderstorm as small iridescent balls about ten centimeters in diameter, consisting of light that appears solid, like the plasma of a volcano. After evolving above the ground for a few seconds in the smell of sulfur, the spheres disintegrate in the air.