Explore Earth's layers from the crust down to the inner core. Learn about tectonic plates, convection currents, Earth's magnetic field, and more. Additional fea
In this gripping sci-fi novella from award-winning writer Poul Anderson, the galaxy has been taken over by a regime known as Valgolia, whose brutality and ruthl
From frozen deserts to steaming jungles, our planet is amazingly rich and varied. But it is also under threat. Take a closer look at the challenges facing plane
Carbon in Earth's fluid envelopes - the atmosphere, biosphere, and hydrosphere, plays a fundamental role in our planet's climate system and a central role in bi