Noctilucent clouds: What are they and when can you see them?

Discover more about the astronomy phenomenon that makes clouds appear to glow at night 

Noctilucent Cloud Show, a Mercurial Nova, and More - Sky

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Look high and higher for the beautiful noctilucent clouds

Noctilucent clouds: what they are and how to see them - BBC Sky at

Climate change is making night-shining clouds more visible - AGU

Rare noctilucent clouds spotted in the night sky over the North East

Astro Bob: Noctilucent clouds — what are they, where are they and

Noctilucent clouds: What are they and when can you see them

Noctilucent clouds - Met Office