Stunning Electric-Blue Flames Erupt From Volcanoes
Stunning Electric-Blue Flames Erupt From Volcanoes Indonesia’s Kawah Ijen and other craters emit rivers of light from burning sulfur. Sulfur combusts on contact with air to create stunning blue lava-like rivers of light in the Kawah Ijen crater on the island of Java. Photograph by Olivier Grunewald NG Staff Brian Clark Howard National Geographic Published January 30, Continue Reading →