A red-hot lava flow two miles long has been attracting crowds to the slopes of Mount Etna on the island of Sicily, Italy.

Lava tubes are naturally occurring channels formed when lava flow develops a hard crust ... ‘Within the lava tube are ...

Abby: One-tenth of the world's population lives within the danger zone of a lava flow, which means knowing how lava works and reacts to elements like water, metal, and ice is key. So on this ...