3. 25 Facts About Geologic Time That Made Our Brains Hurt 4. How Do We Know? A Glimpse into Geologic Sleuthing 5. Our ...

There's a billion-year gap in Earth's geological history. A new study seeks to explain the mystery.

In the 20th century, scientists began to suspect Earth was a lot older than we thought. It was our old friends/deadly foes, ...

About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia collided with the young Earth. How the collision unfolded and what exactly ...

Scientists have made a bold leap in the search for life’s origins, offering a fresh look at how chemistry might have crossed over into biology. At the center of this progress are coacervate ...

With water covering the majority of our planet, scientists have been wading through ideas to answer a fundamental question: Where did it all come from? A popular theory suggests asteroids or comets ...