Earth’s crust looks solid from the surface, but it is broken into a shifting mosaic of slabs that slowly rearrange oceans and continents. Understanding how those tectonic plates first formed is one of ...

Journey across global tectonic hotspots to explore volcanic processes, landforms, and plate margins with vivid footage and expert explanations. Preview: Journey across global tectonic hotspots to ...

Rumbling quakes on the red planet have been traced back to Cerberus Fossae, suggesting this geologically young region is still alive and cracking. Several deep fractures cut across Mars's cratered ...

Chinese researchers have discovered that interstitial carbon in iron-carbon alloys behaves in a superionic, liquid-like state ...

PROF. TIMOSHENKO is one of the outstanding exponents of the mathematical theory of elasticity and of the application of this theory to a variety of practical problems. He has written on these topics ...

Human and physical features are things that you can see all around you. Physical features like seas, mountains and rivers are natural. They would be here even if there were no people around. Human ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

How does understanding biology help us classify organisms? How is biodiversity threatened and how can we protect it? Sample exam questions - life on Earth - past, present and future ...