Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive can conjure up images of ...

A new book explores how one biologist’s work at the North and South Poles changed the way he sees the world and our place in ...

The cool conditions which have allowed ice caps to form on Earth are rare events in the planet's history and require many ...

How did Earth transform from a hostile, acidic ocean world to one that nurtured life? Scientists at Yale and in Singapore ...

Extensive evidence, including global temperature and sea ice data, shows Earth's climate is changing due to human activity.

Back then, it was a regional list, conceived as an objective way to determine which mountains in the Indonesian archipelago would probably be worth attempting to hike at weekends. We developed the ...