The European Space Agency last week released four stunning high-res images that show the sun in all its fiery glory.

Beware: It's not going to be easy to choose one favorite photo to win the Wildlife Photographer of the Year People’s Choice ...

Southern Patagonia's glaciers are safeguarded by snowfall, but rapid warming could lead to their melt. Limiting warming to ...

This year’s U.N. climate change summit wore its contradictions and failings on its sleeve, prompting existential anxiety.

Up on the fifth floor of London's County Hall, an enormous space which for decades echoed with the flapping wings of roosting ...