Today’s Word of the Day (in my world, at least) is “noctilucent.”
The term is typically applied to a specific type of cloud, “a luminous thin usually colored cloud seen especially at twilight at a height of about 50 miles (80 kilometers).” It’s the luminous aspect that makes these clouds particularly dramatic.
Noctilucent clouds: What are they and how can you see them? | Space
The name noctilucent is derived from the Latin words “nocto” and “lucent” which translates to “night” and “shining” respectively, according to Merriam Webster.
These clouds are seasonal, and in the Northern hemisphere that season is now.
Noctilucent clouds: The season starts now!
The season for noctilucent clouds at northerly latitudes is now. People at high latitudes report seeing noctilucent clouds. This happens every year, from about May through August in the Northern Hemisphere, and from November through February in the Southern Hemisphere.
I chose this word because its Latin origins are interesting to unpack, it refers to a beautiful and intriguing phenomenon, and it’s fun to say.
The world is a marvelous, mysterious and magical place. Science (and science fiction!) just makes it that much better.
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J.R. Johnson 
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