universetoday.com
Exosphere
[/caption] The Earth’s atmosphere is broken up into several distinct layers. We live down in the troposphere, where the atmosphere is thickest. Above that is the stratosphere, then there’s the mesosphere, thermosphere and finally the exosphere. The top of the exosphere marks the line between the Earth’s atmosphere and interplanetary space. The exosphere is the … Continue reading "Exosphere"
Fraser Cain