When sulfur-rich gases escape from the volcano’s cracks at temperatures reaching 600°C (1,112°F), they ignite upon contact with oxygen, producing vibrant blue flames.

Video footage captured by Scott Malis during the volcano's 11th episode shows lava spewing out of Kilauea volcano and spinning into the air.

Discover more about it below. The Kawah Ijen volcano in Indonesia is like any other, but the blue lava phenomenon is caused by abundance of sulphur pockets in the rock. Geologists call it the ...

So why do we still see blue Moons? The answer is that other volcanoes have erupted since, and sometimes they release particles of the same size as Krakatau's. Some forest fires can produce the same ...

Iceland declared a state of emergency after a volcano in the southwest erupted for the fourth time since December. One of the country’s most popular tourist destinations was evacuated.