Well there are actually 4 layers to the atmosphere all with different properties. ... The top of this layer extends to 300 miles up and represents the upper limit of our atmosphere.IONOSPHERE.

Scientists studying the zone between Earth’s atmosphere and space have spotted unusual X- and C-shaped features that could thwart signals that keep our planet running smoothly.

Each day, radio signals from key communications and navigation satellites travel freely through a layer of Earth’s atmosphere known as the ionosphere. Floating 50 to 400 miles (80 to 643 ...

What Venus does have, however, is an ionosphere, a layer of the atmosphere filled with charged particles. The Venusian ionosphere is bombarded on the sun-side of the planet by the solar wind.

The junction between layers of atmosphere is usually not a discreet line, but rather a transition zone where one blends into another. The change may happen over miles.

The troposphere, where humans reside, is the layer nearest to the Earth's surface. Extending from the surface up to approximately 4 to 12 miles, it constitutes the lower atmosphere.

If we're to land humans on Mars in the coming decades, we'll have to know what challenges await them when they get there.

By Ashley Strickland, CNN (CNN) — Each day, radio signals from key communications and navigation satellites travel freely through a layer of Earth’s atmosphere known as the ionosphere.

(CNN) — Each day, radio signals from key communications and navigation satellites travel freely through a layer of Earth’s atmosphere known as the ionosphere. Floating 50 to 400 miles (80 to ...