Troposphere (5 – 9 Miles Thick) The troposphere is the layer closest to Earth's surface and is what most of us are probably imagining when we talk about the atmosphere.

First, as I mentioned, is the troposphere. This is the lowest layer of the atmosphere, where all weather occurs. It begins at the ground, and extends upward to about 6.2 miles above earth’s surface.

The Earth has a fascinating atmosphere that contains several unique layers. The Troposphere is the layer that we live in, it starts at the surface but the height often varies to about 9-12 miles up.

Between 50 and 1,000 kilometers above our heads is the ionosphere, a layer of Earth's upper atmosphere consisting of charged ...

Earth’s atmosphere comprises multiple layers, each with its own role. Above the troposphere, Earth ’s innermost layer (which contains Earth’s oxygen and houses what we call weather), is the ...

When the stratospheric layer of Earth’s atmosphere dips a toe into the underlying troposphere, the resulting chemical mixture becomes a fertile environment where tiny new particles, ...