Sometimes it’s good to have the blues 😍🌋💙 The electric-blue light from the Kawah Ijen volcano in Indonesia is visible only in the darkness. #ParadiseIslands | National Geographic TV

Kawah Ijen: The blue fire volcano - What kind of fire burns blue in the dark? How can a lake be more acidic than battery acid? Deep inside Indonesia’s Kawah Ijen volcano, nature creates a spectacle few have ever witnessed. According to Geology.com, the glowing blue flames and acidic waters are real — and far more dangerous than they seem. But what lies beneath the surface of this volcanic giant? | The Brain Maze

The world’s only volcano that produces luminous blue fire is Kawah Ijen in Indonesia. The glowing flames are not lava—they’re caused by burning sulfuric gases igniting upon contact with oxygen at extremely high temperatures. The phenomenon is visible only at night. Important Details: • Only volcano with visible blue flames • Caused by ignited sulfur gases • Not molten lava • Visible only after dark • Result of extreme geothermal heat #EarthMysteries #VolcanoFacts #BlueFire #Geology #NaturalWonde