Learn more about the new hydrothermal feature that appeared last summer in Yellowstone National Park, and how, even though it ...

Beneath Yellowstone National Park lies something extraordinary—a giant underground chamber filled with molten rock, trapped ...

Yellowstone’s magma chamber is mostly made of a light-colored rock called rhyolite. It spreads out over an area roughly 55 miles long and 30 miles wide and reaches down to a depth of about 10 miles.

The researchers point out that the previously known upper magma chamber was the immediate source of three cataclysmic eruptions of the Yellowstone caldera 2 million, 1.2 million and 640,000 years ...

The researchers point out that the previously known upper magma chamber was the immediate source of three cataclysmic eruptions of the Yellowstone caldera 2 million, 1.2 million and 640,000 years ...

There is a very sharp transition marking the magma chamber top at about 3.8 km (2.4 miles) depth beneath the northeastern part of the caldera near the Yellowstone River.

Scientists have studied Yellowstone National Park's magmatic system for years, but a new view of the magma chamber shows the long-dormant supervolcano is not at immediate risk of eruption.

Scientists have studied Yellowstone National Park's magmatic system for years, but a new view of the magma chamber shows the long-dormant supervolcano is not at immediate risk of eruption.

Ask any geologist about the magma reservoir beneath Yellowstone, and they’ll tell you that it’s there. But where, exactly, is a lot tougher to explain. A new paper published in Nature suggests, ...

Yellowstone is not singular in having massive magma systems. For example, Indonesia's supervolcano Toba erupted around 74,000 years ago, causing serious global impacts.

Scientists have spied a vast reservoir of hot, partly molten rock beneath the supervolcano at Yellowstone National Park that’s big enough to fill the Grand Canyon 11 times over.