Exosphere: Quick Facts

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Diagram showing the layers of Earth's atmosphere from the surface upward: troposphere, stratosphere, mesosphere, thermosphere, and exosphere, with labeled altitudes, weather balloons, airplanes, clouds, auroras, meteors, and satellites for scale.

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Atmosphere Ionosphere and magnetosphere Ozone layer Mesosphere Stratosphere Troposphere Thermosphere 16 Questions About Earth’s Atmosphere and Weather Answered Kármán line Aurora Chemical equator