A newly discovered mechanism could explain the shock finding last year that oxygen is produced by metallic nodules on the ...

It should come as no surprise that when I head to a tropical island, I am more interested in the mountains than the beach.

Tell me if you’ve heard this one before: a volcano scientist who does her work in the middle of the Pacific Ocean—at the ...

Scientists found that volcanic eruptions triggered short-lived oxygen spikes before Earth's air became breathable.

It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis. Researchers ...

Discover America's most scenic roads with the top national park drives. Our guide features eight stunning scenic routes with ...

A geologically dynamic region in the Great Rift Valley is closely watched by scientists as a fascinating natural laboratory.

“The science team will seek out hydrothermal vents and deep-sea volcanoes and venture into the 8000-meter-deep South Sandwich Trench, the most geographically isolated and coldest trench on Earth,” the ...

Triton was the first submersible to reach the deepest points of all five oceans. Journalist Susan Casey shares her experience ...

Sandwiched between the freezing cold of Earth’s coldest continent and the warmth of its southernmost active volcano, the ...

New discovery of a fragile ecosystem beneath undersea volcano leaves researchers baffled. They fear it may be vulnerable to ...

What’s next? Lava is erupting from several volcanoes, including one in Hawaii. Nearly 50 volcanic eruptions have been recorded this year, and more are expected. The Axial Seamount, an underwater ...