Since his groundbreaking address to the Brazilian congress in 1987, the 72-year-old Indigenous leader has challenged assumptions and championed rights, urging us to ‘have the courage to change’ ...

An interstellar comet carries water unlike anything in our solar system, revealing a far colder birthplace and clues about ...

About 71% of Earth’s surface is covered by water, and 96.5% of that water is found in the oceans.

Dr Khalid Al Naqbi has spent 15 years watching the UAE build sovereign control over the infrastructure most people never ...

Earth’s story may have hardened into place almost as soon as the Solar System began. That is the striking claim in new ...

Scientists are still sorting out how strong the shift will be. Some think it could be 'among the strongest El Niños seen in ...

A study reveals that the flow of water, liquid viscosity, may hold one of the most profound clues to how life originated in ...

I tested 10 laundry detergent sheets to see if they’re actually easier to use and more sustainable. Here are two I liked.

A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have ...

Millions of people around the world will pause Wednesday, at least for a moment, to mark Earth Day. It’s an annual event founded by people who hoped to stir activism to clean up and preserve a planet ...

Go white-water rafting on the Futaleufú River in Patagonia. This epic adventure in Chile teaches travelers the importance of ...

No presenter has spent longer on our screens than Sir David Attenborough. Over the course of his more than 70 years of ...