Scientists now know how to drill deep enough to tap into an energy supply that would power the world for more than 20 million ...

Keep reading to learn more about Earth's different layers, its atmosphere, and what makes the "blue planet" unique. Earth is made out of different layers, and those layers get hotter and more ...

This week, geologists announced they discovered the world's oldest known impact crater. It's in Western Australia's ancient ...

The temperature can change from very hot to very cold, depending on sunlight exposure. It can range from 1,700°C (3,092°F) in the sun to -270°C (-454°F) in the shade.