Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

The origins of plate tectonics on Earth are hotly debated, but evidence from Australia now shows that parts of the crust ...

Earth is about 4.5 billion years old, and as the eons passed, the crust of the young planet experienced turbulence. Asteroid collisions shattered some parts, which melted and recrystallized, while ...

Unravelling Earth’s 4.5-billion-year history with rocks is tricky business. Case in point: the discovery of an ancient meteorite impact crater was recently reported in the remote Pilbara region of ...

A Part of Earth’s Original Crust Still Exists NEMES LASZLO/SCIENCE PHOTO LIBRARY - Getty Images "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." ...

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.