The height of each layer in the Earth's atmosphere varies depending on the layer. Here's a breakdown:
- Exosphere: 700–10,000 km (435–6,214 mi)
- Thermosphere: 80–700 km (50–435 mi)
- Mesosphere: 50–80 km (31–50 mi)
- Stratosphere: 12–50 km (7–31 mi)
- Troposphere: 0–12 km (0–7 mi)
The troposphere is the lowest layer of the atmosphere and is where most weather occurs. The stratosphere is where the ozone layer is located, which absorbs harmful ultraviolet radiation from the sun. The mesosphere is the coldest layer of the atmosphere. The thermosphere is where the aurora borealis occurs. The exosphere is the outermost layer of the atmosphere and gradually fades into space.