📖 what
What is an exosphere?
Quick Answer
An exosphere is the outermost layer of a planet’s atmosphere, where gas is so thin that particles can escape into space.
The Full Story
The exosphere is the highest and least dense atmospheric layer, gradually merging into space. At this altitude, atoms and molecules rarely collide and may escape if they move fast enough. Earth’s exosphere contains very sparse hydrogen and helium. Some bodies, including Mercury and the Moon, have exospheres rather than thick atmospheres.
Key Facts
1.The exosphere is the outermost atmospheric layer
2.Particles can escape from it into space
3.Earth, Mercury, and the Moon all have exospheres
YouTube Angle
Suggested video title for this topic:
"The thinnest edge of a planet’s atmosphere, where space begins to win"
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