New research suggests that Earth's first crust, formed over 4.5 billion years ago, already carried the chemical traits we ...

We often think that allergies only afflict people, but a broad range of other animals can also develop them. North Sentinel is home to a tribe that does not have contact with the outside world ...

Modern continental rocks carry chemical signatures from the very start of our planet's history, challenging current theories about plate tectonics.

Venus, however, is a different story. Its crust is thicker—anywhere from 30 to 90 kilometers—and its surface is extremely hot ...