Researchers have uncovered evidence of a long-lost seafloor that sunk deep within the Earth during the age of the dinosaurs, challenging our understanding of Earth's geological history.

University of Maryland scientists uncovered evidence of an ancient seafloor that sank deep into Earth during the age of dinosaurs, challenging existing theories about Earth’s interior structure.

In the mid-20th century, when people looked at a map of the world, they saw the familiar continents surrounded by vast, featureless oceans. Beneath the waves, the ocean floor was largely unknown ...