Kilauea, on Hawaii's Big Island, is the world's most active volcano. Watch the full episode now.

Geophysicist Milton Garces uses infrasonic recording technology to listen in on activity in Kilauea’s lava tubes.

Milton Garces records infrasound in order to understand what's happening in Kilauea's underground lava tubes. Read the interview.

Creating new land, shaping forests and carving tunnels through the earth, the volcano fascinates a group of scientists and filmmakers who follow its every action.

Scientists working in Hawaii are using more sophisticated tools than ever -- like tiltmeters and thermal imagers -- to try to predict the behavior of volcanoes.

From Mauna Loa in the Hawaiian Islands to Maat Mons on the surface of Venus, explore these fascinating volcanoes with exciting histories.

(Airs Sunday, August 15) Hawaii is a place of idyllic beauty. But it is also a land of volcanic fury, raging mountaintop blizzards, dangerous rockslides, monster waves, and even tsunamis.

Follow the path of Kilauea’s lava -- through vents, tubes and fissures -- in this interactive map.

Kevin Bachar, producer and director of Kilauea: Mountain of Fire, gives you a behind-the-scenes look into the making of the film.

Just in: new behind-the-scenes video from Hawaii, where crews are filming an upcoming NATURE episode. Filming underwater lava is as dangerous as you might think.