>Noctilucent clouds, or night-shining clouds, are thin clouds high up in Earth’s atmosphere – the [mesosphere](https://scied.ucar.edu/shortcontent/mesosphere-overview) – as much as 50 miles (80 km) above Earth’s surface. Scientists think they’re made of ice crystals that form on fine dust particles from meteors. They can only form when temperatures are incredibly low and when there’s water available to form ice crystals.
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Photo taken at 4.27am, 1h30min before sunrise.
>Noctilucent clouds, or night-shining clouds, are thin clouds high up in Earth’s atmosphere – the [mesosphere](https://scied.ucar.edu/shortcontent/mesosphere-overview) – as much as 50 miles (80 km) above Earth’s surface. Scientists think they’re made of ice crystals that form on fine dust particles from meteors. They can only form when temperatures are incredibly low and when there’s water available to form ice crystals.
[Nimbo cumulus?!?!](https://www.youtube.com/watch?v=abFJuqp867g)
Beautiful!
Ooooh! Pretty!
That is a crackin image.