Happy summer solstice, everyone! (Fine, it’s called the June Solstice, but we all know what that means here in the Northern Hemisphere, don’t we? Summer!)
What is it?
Do You Really Know Why Earth Has A Solstice? – 13.7- Cosmos And Culture – NPR
Remarkably, Earth has seasons for the same reason that a good quarterback can throw a tight spiral.
Even more explanations:
June Solstice 2023: Shortest & Longest Day of the Year
Why is it a thing?
Because it’s cool. And also because our ancestors knew a lot about practical astronomy. Seasons mattered.
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J.R. Johnson 
Happy solstice!