But scientists have debated for decades when this shift began. Some theories suggest that Earth’s crust was a single, rigid shell before it was shattered. A new study has uncovered the oldest evidence ...

Scientists have found the oldest direct evidence for tectonic motion on Earth by more than half a billion years ...

Add Yahoo as a preferred source to see more of our stories on Google. Beneath the American Midwest, on the continent of North America, the underside of Earth's crust is dripping into the planetary ...

Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs about how our continents formed and when plate tectonics began. A study ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn in this story: What are now thought to be the oldest rocks ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Earth's first crust looked ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. The chemistry of crystals in some of Earth’s oldest rocks may ...

Modern continental rocks carry chemical signatures from the very start of our planet's history, challenging current theories about plate tectonics. Researchers have made a new discovery that changes ...