The exosphere layer is mainly composed of extremely low densities of hydrogen, helium and several heavier molecules including nitrogen, oxygen and carbon dioxide closer to the exobase. … The exosphere contains most of the satellites orbiting Earth.

What are 3 facts about exosphere?

The temperature in the exosphere varies greatly and can range from 0 to over 1700 degrees Celsius. It is colder at night and much hotter during the day. The air in the exosphere is very thin, and is made up mostly of helium, and hydrogen. Traces of other gases such as atomic oxygen and carbon dioxide can also be found.

What makes the exosphere special?

The exosphere is the highest and top layer of the Earth’s atmosphere. It marks the edge of space. There are very few molecules in this layer. The lightest atmospheric gases such as hydrogen and helium exist throughout the exosphere.