Scientists break down the reasons why days are getting shorter—and the mystery they're still trying to solve about Earth's ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

The famous adventurer died while paragliding on Italy’s Adriatic coast. His legacy includes a number of world ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Will all coffee be fair trade? All cars electric? Or, by the time we celebrate the 100th anniversary of Earth Day, will hastening storms, pandemics, and inequality condemn our Earth?

Clearly we here at National Geographic embrace Earth Day, and we're celebrating the day in a big way. But there are a lot of ways you can participate beyond our yellow border.

Astronomers are excited about the first test images released today from the Vera C. Rubin Observatory, which show the ...

Fireballs fall on the Earth every day—but the one that just streaked across the southeastern U.S. this week was unlike the ...