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The Earth doesn’t have seven continents after all. From a young age, we're taught that the world consists of Africa, ...

I f astronomers had been walking the Earth 466 million years ago, they may have had something special to see. The moon and ...

At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a ...

Severe rains bucketed down on central Europe, Africa, Shanghai and the U.S. Carolinas this week, underscoring the extreme ...

Earth may have had a Saturn-like ring system long ago, created from the debris of a passing asteroid that our planet tore ...

In one of the most complete models ever put together, a new study has condensed 1.8 billion years of plate tectonics into a 2-minute video clip.

As continental landmasses rose above sea level to meet wind and rain effects around 3 billion years ago, they underwent a ...

High in the Canadian wilderness, Smithsonian scientists search for ancient minerals that could explain the origins of the ...

Earth’s evolution has been shaped by a series of severe environmental crises that occurred millions of years ago, profoundly ...

The Amazon fires, fueled by severe drought exacerbated by climate change, have created a toxic smoke cloud spanning about 4 ...

A ring of asteroid debris could have orbited Earth for tens of millions of years, and perhaps even have altered the planet's climate ...