As Avatar prepares for its first new animated TV series—and a new hero—in over a decade, let's take a look back at just how ...

As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.

The discovery that farming might not have been the catalyst for civilisation means we must completely rethink the timeline of the first complex societies ...

Earth Commission Report1 provides major new insights into the potential for the transgression of Earth-system boundaries ...

Purple Earth Hypothesis suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for ...

Animals are not just inhabitants of the natural world -- they are its architects. A new study has revealed how hundreds of species shape the landscapes we depend on, from vast termite mounds visible ...

Geology’s Theory of Everything continues successfully to defend its title. ■ Curious about the world? To enjoy our ...

Fossils and genetics are starting to point to life emerging surprisingly soon after Earth formed, when the planet was ...