Venus — a hot planet pocked with tens of thousands of volcanoes — may be even more geologically active near its surface than previously thought. New calculations by researchers at Washington ...

The Earth's mantle might not always move along in lockstep with the overlying tectonic crust—as set out in science textbooks for decades—but may instead behave differently. This is the conclusion of ...

Among the inner solar system, Earth is the only planet that experiences plate tectonics. A new study, using convection models, shows that Earth’s collision with the protoplanet Theia some 4.5 billion ...

CORVALLIS, Ore. — Researchers at Oregon State University have completed a mammoth project to create a 3-D map of electromagnetic energy in the Earth's crust across the continental U.S. What began as ...

Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a phenomenon known as Martian dichotomy. The Southern Highlands are older, higher in ...