On the slopes of an Indonesian volcano, rivers of light appear to pour out of the dark, glowing an electric blue that looks more like a movie effect than geology. The spectacle is real, but the molten ...

AtIndonesia’s Kawah Ijen volcano, a breathtaking blue glow emerges at night, setting it apart from most volcanoes where lava burns in shades of red. At Kawah Ijen, however, the molten sulfur flows ...

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A famous Hawaii volcano erupted recently, its lava reaching as high as 1,000 feet — with the eruption on March 10 prompting temporary closures at a national park and part of an important highway due ...