Ball Lightning: The Glowing Orb Scientists Spent 200 Years Trying to Prove

Floating spheres of light that drift through walls — and finally, hard data.

For centuries, witnesses described glowing orbs the size of grapefruits drifting through the air during thunderstorms — sometimes even indoors — before vanishing or popping.

Science largely filed it under folklore, alongside sea serpents. The reports were too strange: floating fire that lasted seconds, wandered horizontally, and left scorch marks.

Then, in 2012, Chinese researchers studying ordinary lightning accidentally recorded a luminous ball with scientific instruments, capturing its spectrum for the first time — it contained elements from the soil.

That supports a leading theory: a strike can vaporize silicon from the ground, which burns slowly as a glowing floating orb. One of nature's oldest ghost stories is turning into chemistry.