Across the planet, water makes up 71% of Earth's surface. The remaining space is covered by land—continents and islands. Before Earth's land formed the seven continents in the present day, all the ...

The discovery, published in Nature Geoscience, reveals one of the largest deep-Earth structures ever mapped on the continent.

Scientists have revealed that two continent-size regions in Earth's deep mantle have distinctive histories and resulting chemical composition, in contrast to the common assumption they are the same. A ...

Add Yahoo as a preferred source to see more of our stories on Google. Across the planet, water makes up 71% of Earth’s surface. The remaining space is covered by land — continents and islands. Before ...