By the early 1900s, scientists had identified major layers of the atmosphere based on how the temperature changed at different levels above the sea. Thanks to these studies, we now know the five ...

The layers of the atmosphere shown to scale and a discussion of what happens at each layer. The layers in order from the ground up: Troposphere, Stratosphere, Mesosphere, Thermosphere, and the ...

When you look at photographs of Earth from space, the planet looks like a blue marble, with patterns of clouds lying on the surface of the marble. It seems as if Earth's atmosphere is incredibly ...

Many human activities release polluting gases into the atmosphere, such as farming animals ... the outer core and the inner core. These layers each have different structures and properties.

The Earth’s atmosphere is the relatively thin layer of gases surrounding the planet. The atmosphere is held close to Earth by gravity, but the higher you go away from the Earth’s surface ...