Naga Fireballs are one of the most well documented unexplained phenomena in the entire world. Every year during October thousands of spectators gather on the banks of the Mekong river in Thailand and Laos to see the legendary Naga breathe forth balls of fire from the river itself.
Many have been watching this every year for their entire life. The balls themselves are reddish in color and are about the size of an egg. They slowly and silently rise from the river before accelerating high into the air where they disappear. There can be anywhere from tens to thousands of these glowing orbs per night. Although there are many theories to explain what causes this, there is no solid explanation. (Source)





