Encyclopedia > Exosphere

Article Content

Exosphere

The exosphere is the uppermost layer of the atmosphere. On Earth, its lower boundary is estimated at 500 km to 1000 km above the Earth's surface, and its upper boundary at about 10,000 km. It is only from the exosphere that atmospheric gases can, to any appreciable extent, escape into outer space.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Quioque, New York

... The average household size is 2.38 and the average family size is 3.02. In the town the population is spread out with 22.3% under the age of 18, 8.0% from 18 to 24, ...