Thermosphere
From Wikipedia, the free encyclopedia
 |
The English used in this article or section may not be easy for everybody to understand. You can help Wikipedia by reading Wikipedia:How to write Simple English pages, then simplifying the article. please fill in the date or use {{subst:Complex/auto}} to substitute the date. |
The thermosphere is the layer of the earth's atmosphere directly above the mesosphere (middle layer) and directly below the exosphere (top layer). Within this layer, ultraviolet radiation causes ionization.
