The Earth formed 4.6 billion years ago and has been continuously changing ever since. For instance, the Himalayas continue to ...

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 ...

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 ...

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 ...