Hawaii’s Kilauea volcano resumed its latest eruption on Monday, sending fountains of lava shooting more than 250 feet in the air. Photos of the geological spectacle at Hawaii Volcanoes National Park ...

By exploring Yellowstone's geothermal springs, scientists discovered the microbes that reveal how life adapted to harsh conditions billions of years ago.

A tall fountain of lava is spewing from a volcano on Hawaii's Big Island. A webcam on Tuesday shows vigorous streams of red ...

Scientists have assessed Yellowstone's chances of eruption by measuring electronic currents flowing deep within the Earth ...