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

A spot in eastern Africa called the Afar Triangle marks the meeting point of three rift zones—lines where Earth’s crust is being rent apart. Researchers haven’t been sure exactly what drives this ...

Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

Geologists have long debated whether a stony formation in Canada contains the world’s oldest rocks – new measurements make a ...

A study reveals that the oldest continental crust on Earth is slowly being broken up by shifting tectonic forces.

Mercury is toxic, and mercury poisoning occurs when your body reacts to being exposed to too much of it, according to the ...

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 ...