There are four main layers of the Earth's atmosphere: the troposphere, stratosphere, mesosphere, and thermosphere. The troposphere is the lowest layer, closest to the Earth's surface, and is where weather occurs. The stratosphere is the layer where the ozone layer is located. The mesosphere is the coldest layer and is where most meteors burn up. And the thermosphere is the layer closest to space and where the International Space Station orbits. Each layer has its own unique characteristics and plays a role in the Earth's climate and weather systems.
