thumb|upright=1.5|Earth's atmosphere as it appears from space, as bands of different colours at the horizon. From the bottom, afterglow illuminates the [[troposphere in orange with silhouettes of clouds, and the stratosphere in white and blue. Next the mesosphere (pink area) extends to just below the edge of space at one hundred kilometers and the pink line of airglow of the lower thermosphere (dark), which hosts green and red aurorae over several hundred kilometers.]]
The mesosphere is a layer of Earth's atmosphere that sits above the stratosphere and extends to about 100 kilometers altitude, where it approaches the edge of space. It appears as a pink band when viewed from space and is notable for producing a visible glow called airglow, which appears as a delicate line at the horizon.
AI-generated from the Wikipedia summary — may contain errors.
thumb|upright=1.5|Earth's atmosphere as it appears from space, as bands of different colours at the horizon. From the bottom, afterglow illuminates the [[troposphere in orange with silhouettes of clouds, and the stratosphere in white and blue. Next the mesosphere (pink area) extends to just below the edge of space at one hundred kilometers and the pink line of airglow of the lower thermosphere (dark), which hosts green and red aurorae over several hundred kilometers.]]
thumb|upright=0.5|Diagram showing the five primary layers of the Earth's atmosphere: exosphere, [[thermosphere, mesosphere, stratosphere, and troposphere. From Earths surface to the top of the stratosphere (50 km) is just under 1% of Earth's radius.]]
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).