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  1. May 14, 2024 · The exosphere is the outermost layer of the Earth’s atmosphere, where most satellites orbit. The exosphere denotes the end of our atmosphere and the beginning of outer space, though there is not a definitive top altitude where the exosphere ends. “It’s kind of like the air molecules are leaking out of the Earth’s atmosphere,” said Ueyama.

  2. Earth's atmosphere is composed of a series of layers, each with its own specific traits. Moving upward from ground level, these layers are called the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The exosphere gradually fades away into the realm of interplanetary space. The layers of the atmosphere: the troposphere ...

    • Troposphere
    • Stratosphere
    • Mesosphere
    • Thermosphere
    • Exosphere
    • Pauses
    • Ionosphere

    The layer of the atmosphere closest to the Earth is the troposphere. It begins at the surface of the Earth and extends out to about 4 to 12 miles (6 to 20 km). This layer is known as the lower atmosphere. It's where weather happens and contains the air humans breathe. The air of our planet is 79 percent nitrogen and just under 21 percent oxygen; th...

    Above the troposphere is the stratosphere, which extends to about 31 miles (50 km) above the Earth's surface. This layer is where the ozone layer exists and scientists send weather balloons. Jets fly in the lower stratosphere to avoid turbulence in the troposphere. Temperature rises within the stratosphere but still remains well below freezing.

    From about 31 to 53 miles (50 to 85 km) above the surface of the Earth lies the mesosphere, where the air is especially thin and molecules are great distances apart. Temperatures in the mesosphere reach a low of -130 degrees Fahrenheit (-90 C). This layer is difficult to study directly; weather balloons can't reach it, and weather satellites orbit ...

    The thermosphere rises several hundred miles above the Earth's surface, from 56 miles (90 km) up to between 311 and 621 miles (500–1,000 km). Temperature is very much affected by the sun here; it can be 360 degrees Fahrenheit hotter (500 C) during the day than at night. Temperature increases with height and can rise to as high as 3,600 degrees Fahr...

    Extending from the top of the thermosphere to 6,200 miles (10,000 km) above Earth is the exosphere, where weather satellitesare. This layer has very few atmospheric molecules, which can escape into space. Some scientists disagree that the exosphere is a part of the atmosphere and instead classify it actually as a part of outer space. There is no cl...

    Between each layer of the atmosphere is a boundary. Above the troposphere is the tropopause, above the stratosphere is the stratopause, above the mesosphere is the mesopause, and above the thermosphere is the thermopause. At these "pauses," maximum change between the "spheres" occur.

    The ionosphere isn't actually a layer of the atmosphere but regions in the layers where there are ionized particles (electrically charged ions and free electrons), especially located in the mesosphere and thermosphere. The altitude of the ionosphere's layers changes during the day and from one season to another.

    • Matt Rosenberg
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    • Exosphere. This is the outermost layer of the atmosphere. It extends from about 375 miles (600 km) to 6,200 miles (10,000 km) above the earth. In this layer, atoms and molecules escape into space and satellites orbit the earth.
    • Thermosphere. Between about 53 miles (85 km) and 375 miles (600 km) lies the thermosphere, known as the upper atmosphere. While still extremely thin, the gases of the thermosphere become increasingly denser as one descends toward the Earth.
    • Mesosphere. This layer extends from around 31 miles (50 km) above the Earth's surface to 53 miles (85 km). The gases that comprise this layer continue to become denser as one descends.
    • Stratosphere. The stratosphere extends from from 4 -12 miles (6-20 km) above the Earth's surface to around 31 miles (50 km). This layer holds 19 percent of the atmosphere's gases but very little water vapor.
  4. Earth is surrounded by a mixture of gases called the atmosphere. The composition of the atmosphere is 78 %. ‍. nitrogen and 21 %. ‍. oxygen, with the remaining 1 %. ‍. consisting of water vapor, argon, carbon dioxide, and small amounts of other gases. Earth’s atmosphere consists of five distinct layers that are distinguished by ...

  5. Dec 1, 2020 · The atmosphere extends from Earth’s surface to more than 10,000 kilometers (6,200 miles) above the planet. Those 10,000 kilometers are divided into five distinct layers. From the bottom layer to the top, the air in each has the same composition. But the higher up you go, the further apart those air molecules are.

  6. The temperature gradient of each layer is different. In some layers, temperature increases with altitude and in others it decreases. The temperature gradient in each layer is determined by the heat source of the layer. Most of the important processes of the atmosphere take place in the lowest two layers: the troposphere and the stratosphere.

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