Volcanic Addiction
After getting as close to Marum crater in Vanuatu as he'd ever been to such a cauldron of lava, photographer Carsten Peter described his addiction to volcanoes. "You think you understand the Earth and its geology," he said. "But once you look down into a volcanic crater and see what's there, well, you realize you will never completely understand. It is that powerful."

Photograph by Carsten Peter