“Volcanoes have played such a central role in the development of life on our planet,” says volcanologist and National Geographic Explorer Arianna Soldati, who has long been fascinated with these geologic formations. Today, her work on volcanoes, specifically how fast and far lava flows, helps predict when eruptions might occur in an effort to keep people safe. In this episode of Explore with National Geographic Experts, learn more about Soldati’s passion for volcanoes and the unique insights she'll share when she joins two upcoming voyages to Guanacaste, Costa Rica this November and December.