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

KANU

... was founded in 1960. The Kenya African Democratic Union[?] (KADU) was founded in 1960, to challenge KANU. KADU's aim was to defend the interests of the small minority ...