Earth’s earliest crust may have looked a lot more like the continents we know today than scientists once believed. A recent study shakes up old ideas about how Earth's surface evolved, showing ...

So how old is our planet, and how do we even know its age? Earth formed about 4.54 billion years ago, about 10 million years after the solar system was born.

Scientists have discovered a new type of sedimentary rock made of debris from slag heaps, formed in the geological blink of ...

But researchers disagree on exactly how old they are. Work from two decades ago suggested the rocks could be 4.3 billion years old, placing them in the earliest period of Earth’s history.

New research suggests that the geological site harbors the oldest known surviving fragments of Earth’s crust, dating back to 4.16 billion years ago.

Earth Science Ancient Rocks in Canada Are Almost as Old as the Earth Itself Rocks older than 4.03 billion years could shed light on Earth's earliest geological history, but they're incredibly rare.

This potential sample of Earth’s early crust is the subject of a long-standing debate among geologists: is it the world’s oldest rock, or merely extremely old?

A remote outcrop in Canada harbors rocks that are at least 4.16 billion years old, researchers report June 26 in Science. If true, these rocks would be the oldest known on Earth and the first to ...