By contrast, lava caves, widely known as lava tubes, are formed in a geological instant—a year or two, sometimes weeks—by an eruption from the Earth’s crust. Most of Hawaii’s lava tubes ...

Passing by a series of subterranean geological features named cave chocolate, cave bacon and cave popcorn, I start to wonder ...

Oregon is home to some of the best examples of deep caves and ancient lava beds formed ages ago from the many volcanoes in Oregon’s geological history. So significant that one of them was used ...

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 ...

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 ...

Can wocus be restored for future generations? Then, why are robots wandering around these lava caves? But first... I remember the first time being out on the backroads and I saw a car like this ...