Disregard what you learned in geography class—Earth may not have seven continents after all. From the earliest of grades, schoolchildren around the world have memorized the same lineup: Africa, ...

Geoscientists have solved an age-old mystery of oceanic volcanism and plate tectonics, explaining why some islands contain so much continental material despite their distance from continental plates.

"... a pivotal event in our planet's history." This is an Inside Science story. Earth's first continents may have emerged from the oceans roughly 750 million years ...

Continent-sized structures of mineral protruding from the lower mantle towards Earth's outer core may be contributing to an instability of our planet's magnetic field. The two odd formations – one ...