Talk about a bizarre feature of the human body: If you happened to swallow a razor blade, your stomach acid would dissolve it. Acids are ranked on a scale from zero to 14—the lower the pH level, the ...

You walk outside, stand on the pavement, and assume the ground beneath your feet is a permanent fixture. It isn't. The ...

Explore 25 Water Facts That Make Earth Even More Amazing! Uncover the science, scale, and wonder of water, from its vast ...

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 ...

We have lots of recent evidence to suggest Earth is weird—really weird. Our planet, for example, mysteriously pulsates every 26 seconds, has a secret hidden layer, is rapidly getting colder (but only ...

Use left and right arrow keys to seek audio. For the entire duration of human existence, we have been trying to make sense of the planet we have been living on, called Earth. Humans have come quite ...

JACKIE. YEAH. GOOD AFTERNOON. IT’S A REALLY NICE DAY OUT HERE. OF COURSE, WE’VE GOT THE SUN SHINING ON THIS EARTH DAY. A LITTLE BREEZY, SO MY HAIR HAS BEEN KIND OF GOING HERE. THERE AND EVERYWHERE. A ...