Understand the layers in the atmosphere that wrap around the earth.

Offers a brief explanation of the troposphere, the innermost layer of Earth's atmosphere.

A concise explanation of the mesosphere, the middle layer of the atmosphere.

What is atmosphere? Find out about the layers of the atmosphere and learn how the atmosphere protects life on Earth and other fun facts.

A brief explanation of the thermosphere home to the International Space Station.

A brief explanation of the stratosphere including a discussion of the ozone layer.