NASA's Juno spacecraft found Io’s surface is as smooth as glass, just like volcanically created obsidian glass ...

Sittin' On the Dock of the Bay NASA has released stunning new artist impressions of an extremely reflective lava lake on the surface of Jupiter's moon Io. While the generated clip, released by the ...

NASA confirmed that a chunk of debris that crashed into a Florida home came from a battery pallet ejected from the ISS, and archaeologists found evidence that humans used a lava tube as a shelter ...

Tephra includes large, dense chunks, light rock debris, and ash. The restless lava lake in Nyiragongo's summit crater regularly causes eruptions of gas and smoke laden with tephra. Lava is the ...

This story appears in the April 2011 issue of National Geographic magazine. When? This is the question that has brought two of the world's leading volcano scientists to the center of Africa; it's ...

The 990m-high strato-volcano's setting makes it extremely difficult to climb. Pictures taken from space are really the only way of looking inside Saunders Island is part of the South Georgia and ...

Lava from Mauna Loa could block main highway ... lava flowing from a fissure on Mauna Loa and the glow from the lava lake at nearby Kilauea volcano. Hawaii's Mauna Loa, the world's largest active ...