Centuries of eruptions on the Big Island have created hidden networks of passages beneath volcanoes. In December 2016 a large lava delta formed by Kilauea volcano sank into the sea, exposing the ...

Lava tubes on Earth have been studied for signs of ancient microbial life, providing a model for searching for life in ...

One of these caves is Surtshellir, part of a lava tube complex that is Iceland’s longest, at more than two miles. It is named for Surtr, the elemental fire giant of Norse mythology, the ...

The lava caves, lava tubes and geothermal vents on the big island of Hawaiʻi have higher bacterial diversity than scientists expected, reports a new study in Frontiers in Microbiology.

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 ...

The trailhead is just 14 miles west of Bend and is accessible to all hiking abilities. The hike can be as quick as a 0.4-mile ...

Through the intricate study of lava tubes—caves formed following volcanic eruptions when lava cools down—an international ...