geocorona
/ˌdʒiːoʊkəˈroʊnə/
noun
- A faint, outermost layer of the Earth's atmosphere that glows with ultraviolet light, extending far into space.
- The geocorona is made of hydrogen atoms that scatter sunlight.
- Scientists study the geocorona to learn about how hydrogen escapes from our atmosphere.
- Satellites have captured images of the geocorona surrounding Earth.