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 discovery that changes ...

An ocean that opened up in what is now Mongolia 410 million years ago was created by a hot upwelling of rock known as a mantle plume. When you purchase through links on our site, we may earn an ...

The Sentry, an autonomous undersea vehicle, was used to map the magnetic stripes in Pito Deep, a large chasm in the Pacific Ocean that provides a cross-section of samples of lower oceanic crust.