More than 2,000 years ago, Greek artisans built a compact machine of interlocking gears that could track the heavens with a precision that still unsettles modern engineers. The corroded fragments of ...

The fastest land animal in North America is the American pronghorn, and previously, researchers thought it evolved its speed ...

What is the summer solstice? For many people, the summer solstice is simply the first day of summer and the longest day of the year, meaning that it has more daylight hours than any other day. In the ...

An ancient, submerged bridge in a cave on the Spanish island of Mallorca is helping researchers determine when humans first settled on islands across the western Mediterranean Sea thousands of years ...

How ancient builders raised the mighty pyramids still captures the curiosity of historians and scientists. Despite decades of digging, high-tech scanning, and countless theories, the puzzle remains: ...

Ancient Egypt. Pyramids. A video for KS2 pupils exploring pyramids in Ancient Egypt - their construction, purpose and the ways they evolved. BBC Teach.

A groundbreaking study suggests the ancient Egyptians may have used hydraulic power before we could have imagined this skill. They did not utilize just ramps and manpower, to build the Step Pyramid of ...

Ancient Greek thinker Archytas built one of the first flying machines long before Leonardo da Vinci sketched his own and drones soared.

When Western tourists who are visiting Istanbul, Turkey, cruise into a port, many typically look for one particular landmark: the Hagia Sophia. Identifying the ancient temple, which has served as a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more An ancient ...