Nothing like a prism in the sky towards the end of the day, here in central Florida. They are known as polar stratospheric clouds
90D / 1/400 / ISO 100 / Manual / Spot metering
Canon EF-S / 18-135mm f/3.5-5.6 IS USM / @ 56mm and f/18.0
Processed using DxO Photolab Elite 7

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