The planet is almost 25,000 miles around and 4.54 billion years old, and humans are still discovering some of the amazing ...

Uncover 25 disturbing facts about our changing continents. Learn how Earth's restless geology reshapes our world, impacting ...

Add Yahoo as a preferred source to see more of our stories on Google. Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The ...

Earth is the planet we have the best opportunity to understand in detail—helping us see how other rocky planets behave, even ...

The world is full of surprising facts about the Earth and how we interact with it, even when we don’t understand or ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth's crust is the planet's outermost layer. It is made of solid rock and sits on top of another layer, called the mantle. The ...

EARTH (MEDIA GENERAL) – In honor of Earth Day today, here are five interesting facts about “the blue marble.” It’s all in the name Earth is the only planet in our solar system not named for a Roman ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...