There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity. Our ...

You don’t have to travel far for this one — we’re diving into the incredible planet you’re standing on right now. Earth is the only known world teeming with life, wrapped in oceans, mountains, forests ...

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How did woolly mammoths survive the last ice age? And how thick was the ice over New York City? Test your knowledge by taking our quiz. When you purchase through links on our site, we may earn an ...

Millions of asteroids are floating around in space. Find out what you know about these relics of our solar system. (Jungmin Ryu for The Washington Post) Warning: This ...

How much do you know about Earth's ecosystems? The scientists in Earth on Edge say that humans are failing to wisely manage the ecosystems on which our lives depend. And, as the marine ecologist in ...

GREEN BAY, Wis. (WBAY) - It’s the 55th annual Earth Day! And here is Brad Spakowitz’s 2nd annual 3 BRILLIANT MINUTES Earth Day quiz! Brad puts Chris Roth -- and you -- to the test with some fun facts ...