Hidden beneath the East Coast of the United States lies the Chesapeake Bay impact crater, a colossal structure formed 35 ...

Crater Lake is one of Oregon's most mystical lakes, and adding to that mystique is the fact it is the deepest in the U.S. and one of the deepest in the world. The national park is a highly sought ...

Yellowstone National Park, known for erupting geysers like Old Faithful, is home to one of earth’s largest volcanic systems, ...

Large explosive eruptions occur in Yellowstone around once every 700,000 years, according to the U.S. Geological Survey.

Oregon is home to the world's largest dark sky sanctuary, so it's no surprise the Beaver State is also home to one of the ...

Vast forests, desert land and even a volcano are among the landscapes included in what is now the largest corridor of protected land in the United States -- which will also protect numerous rare and ...

Hawaii’s Kilauea, one of the world’s most active volcanos, fired out partially molten “lava bombs” from its vents and lava fountains up to 262 feet.

The autopilot was going to set the Eagle lunar lander down amid the boulders on the flanks of West Crater, the largest crater in the image. Commander Neil Armstrong took over and flew the Eagle ...