Earth's crust ranges from 5 to 70 kilometers in thickness and serves as the planet's outermost layer. This thin shell represents less than one percent of Earth's total mass, yet it's the only layer we ...

Deep beneath Italy, a slow geological process is reshaping the Apennine Mountains in a way scientists did not fully ...

The contradictory geology of the Apennines has long puzzled scientists. (Paolo Corsetti/Moment/Getty Images) Deep beneath our ...

Stanford researchers have created the first-ever global map of a rare earthquake type that occurs not in Earth’s crust but in our planet’s mantle, the layer sandwiched between the thin crust and Earth ...

Scientists studying Italy’s Apennine Mountains found the Earth’s crust slowly separating and sinking beneath the surface, ...

Add Yahoo as a preferred source to see more of our stories on Google. What are now thought to be the oldest rocks on Earth have been confirmed to have an age of almost 4.2 billion years, almost as old ...

Asteroids and planetesimals regularly bombarded Earth between about 4.6 billion and 3.5 billion years ago, during the Hadean and Archean eons. Because few rocks today are more than 4 billion years old ...