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The most widely used analysis of Earth's atmosphere is into five layers. From the surface of the planet out into space, they are: Troposphere - from the surface to between 7 and 17 km (depending on latitude)

Stratosphere - Tropospheric boundary to about 50 km

Mesosphere - ~50 km to ~85 km

Thermosphere - ~85 km to between 350-800km (depending on solar activity)

Exosphere - Thermospheric boundary to ~10,000 km

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15y ago

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