Ionosphere vs. Exosphere — What's the Difference?
Difference Between Ionosphere and Exosphere
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Compare with Definitions
Ionosphere
The ionosphere () is the ionized part of Earth's upper atmosphere, from about 48 km (30 mi) to 965 km (600 mi) altitude, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation.
Exosphere
The exosphere (Ancient Greek: ἔξω éxō "outside, external, beyond", Ancient Greek: σφαῖρα sphaĩra "sphere") is a thin, atmosphere-like volume surrounding a planet or natural satellite where molecules are gravitationally bound to that body, but where the density is so low that the molecules are essentially collisionless. In the case of bodies with substantial atmospheres, such as Earth's atmosphere, the exosphere is the uppermost layer, where the atmosphere thins out and merges with outer space.
Ionosphere
A region of the earth's atmosphere where ionization caused by incoming solar radiation affects the transmission of radio waves. It extends from a height of 70 kilometers (43 miles) to 400 kilometers (250 miles) above the surface.
Exosphere
The outermost region of a planet's atmosphere.
Ionosphere
The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.
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Exosphere
The outermost region of the earth's atmosphere, lying above the thermosphere and extending thousands of kilometers into space, from which molecules having sufficient velocity can escape the earth's gravitation.
Ionosphere
The similar region of the atmosphere of another planet.
Exosphere
The uppermost layer of a planet's atmosphere
Ionosphere
The outer region of the earth's atmosphere, beyond which is the exosphere; it contains a high concentration of free electrons and ions, and extends from about 50 miles to about 250 miles above the earth's surface, but the height shows daily and seasonal variation, and the composition of the particles in the ionosphere is also affected by events such as solar flares.
Exosphere
An extremely thin atmosphere, as on Saturn's moon Dione
Ionosphere
The outer region of the Earth's atmosphere; contains a high concentration of free electrons
Exosphere
The outermost atmospheric layer
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