Homepage
KidzSearch
Play Fun Mobile Games.
Games
Cool Videos for Kids.
Videos
Talk About Anything
Q&A
Social Network for Kids
KidzNet
Explore Popular Images.
Pics
Explore the Best Sites for Kids.
Websites
Listen to Streaming Music for Kids.
Radio
Facts for Kids.
Facts
Read About Cool Topics.
News
Browse Over 200,000 Student Articles.
Wiki
Learn How to Search with Boolify.
Boolify
Discover KidzSearch Apps
Apps
The exosphere is a thin, atmosphere-like volume surrounding a planet or natural satellite. Its molecules are gravitationally bound to that body. 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,