This was
your sky.
ELVES Lightning over Italy
That red ring in the sky is a type of lightning called ELVES. While most lightning flashes between clouds, ELVES are upper-atmospheric lightning, like red sprites and blue jets. They are created when an electromagnetic pulse from charged clouds shoots upward, impacting the ionosphere. This image, taken over Italy, shows a particularly clear example.
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In tropical astrology, 17 APR 2023 falls under Aries (♈). The sign's window runs from 03-21 through 04-19. Aries is the constellation traditionally tied to spring's arrival in the northern hemisphere. The Sun was crossing this region of the sky on 17 APR 2023.