Geology

A gigantic space rock that slammed into Earth more than three billion years ago grievously wounded the biosphere—and then helped it heal

A vast, ancient slab of seafloor plunged underneath the Pacific Ocean and has hovered in Earth’s mantle for more than 120 million years, a new study suggests

A model suggests a massive uplift caused by a phenomenon called “river piracy” partly explains Everest’s impressive height

Inland flooding from tropical cyclones, even at high altitudes, is a major worry—and one that scientists don’t know enough about

Scientists have traced a baffling monotonous planetary hum that lasted for nine days back to a glacier in Greenland

Scientists propose that large chunks of gold could form from earthquakes’ pressure

A new Greenland map suggests how geology might shift and twist below the ice

A new analysis of Stonehenge’s “Altar Stone” suggests Neolithic people walked or sailed some 500 miles to transport the six-ton boulder

Baffling new results show that rocklike mineral deposits in the deep sea can produce oxygen

Beach sand is beautiful—and even more so when you understand the story it tells about our planet

We discovered a strange rock in the Sahara we thought was a meterorite. Figuring out what it was grounded me back to Earth

Beneath the Antarctic ice, scientists find remnants of a giant river system that flowed for thousands of miles