The equator is the imaginary line that horizontally encircles the middle of Earth, stretching approximately 24,900 miles (40,000 kilometers) long. It's located halfway between the North and South ...

This hypothesis suggests that Earth was entirely covered in ice hundreds of millions of years ago, reaching as far as the equator. Studies of ancient rock formations in Colorado offer vital clues ...

Uranus has the craziest tilt in your Solar System. Its tilt is about ninety-eight degrees. That means its north pole is ...

The Earth is round, so it does not have a fixed center like a flat surface. However, some countries are closest to important ...

In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) per hour, but they are not the strongest in our solar system. The ...

Warm air rising from Earth's surface pushes the air mass away from the equator, and releases its moisture as precipitation as it travels pole-ward (Figure 1). If the Earth did not spin on its axis ...