What is another word for exosphere?
Pronunciation: [ˈɛksə͡ʊsfˌi͡ə] (IPA) 
The exosphere is the outermost layer of the Earth's atmosphere, extending from about 500 kilometers up to 10,000 kilometers. This layer is characterized by extremely low density and high temperatures, making it difficult for gases to maintain a stable orbit. Some synonyms for the exosphere include the outer atmosphere, outer layer, and the outermost region. Additionally, the term "geocorona" is sometimes used to describe the tenuous layer of hydrogen that surrounds the Earth's atmosphere in the exosphere. Other synonyms for the exosphere, albeit less commonly used, include the thermosphere and the upper atmosphere. Overall, though, the exosphere remains the most commonly used term to describe this outermost layer of the Earth's atmosphere.
