A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...

Beneath the steaming geysers and bubbling mud pots of Yellowstone National Park lies one of the world's most closely watched volcanic systems. Now a team of geoscientists has uncovered new evidence ...

The implications are staggering because an estimated 22 percent of the world’s undiscovered oil and gas reserves lies beneath Arctic seas, according to the U.S. Geological Survey. Energy and ...

Puerto Rico is hit with an island-wide blackout as it prepares for Easter weekend, power company official says.