Continental clues: Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current theories about plate tectonics. Researchers have made a new ...

Geologists have made certain assumptions about how the crust making up our planet's earliest surface formed, but a new study has found that Earth's very first protocrust was surprisingly similar to ...

Earth as we know it today looked drastically different several billion years ago. According to a paper recently published in the Proceedings of the National Academy of Sciences (PNAS), the composition ...