This is stunning, I think the Noctilucent Clouds are beautiful.
Time-lapse captured over a single night above Caithness, Scotland, earlier this month -
It is unusual to see either phenomena, and quite a sight for sky gazers to see them together. Noctilucent - or "night-shining" - clouds are made
of sunlight-reflecting ice crystals and, as the highest clouds in the Earth's atmosphere, they are normally too faint to be seen.
The video shows both the variety of clouds and how their structure varies over time.
The lower clouds appear dark or fast moving and about halfway through the video they are joined by aurora.
Aurora is a natural light display in high-latitude regions and is caused by the collision of charged particles with atoms in the atmosphere.
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