Obsidian is perhaps best known in its role as the dark black blade atop ancient spears and axes – but what if we wanted to ...

The aim is to harness lava as it is flowing after an eruption and use the molten rock as eco-friendly architectural building ...

A lava stream from a volcanic eruption in West Iceland is brighter than the lights of the city's nearby capital, new infrared ...

The Icelandic Meteorological Office (IMO) reported Thursday that lava flows are expanding east and southeast from the ...

A lava delta is created when molten rock reaches a flat area and spreads out in multiple directions like a fan. After this lava delta collapsed, new lava spewed from the tube like a fire hose into ...

Video footage shows a geologist scooping molten lava into a bucket ... so the geologist has to break this with his rock hammer before taking a sample. Lava sampling regularly happens at Kīlauea ...

Twice in recent years Nyiragongo's eruptions have sent molten rock flowing toward the city. In 1977 lava raced down the mountain at more than 60 miles an hour, the fastest ever observed.

Magma is molten or partially molten rock beneath the Earth's surface. When magma erupts onto the surface, it is called lava. Magma typically consists of a liquid portion, often referred to as the ...

Approximately 700,000 years ago when molten rock erupted from a vent in nearby Hart Prairie, the mile-long Lava River Cave was formed. Today, visitors can explore the cave's cool, dark expanse by ...