Rare Night Clouds Were Spotted Across The Uk

Rare glow-in-the-dark nocturnal clouds are currently lighting up much of the Northern Hemisphere – and the recent display is the most vivid in 15 years.
The pointy, ghost-like clouds that appear on summer nights after the sun disappears over the horizon have been spotted right around the UK. In the early hours of Tuesday (June 5), many people took to Twitter to share the breathtaking phenomenon. According to the Met Office, these nocturnal clouds are the rarest, driest and highest clouds on Earth, occupying the layer of the atmosphere known as the mesosphere. Best known for their silvery, blue tones, nocturnal clouds become visible around the same time as the stars and remain visible after dark because they still reflect sunlight due to their great height.
“It is less often seen in the southern hemisphere as there is very little land and very few people there. Only the southern tip of Argentina and Chile and Antarctica are at the right latitude,” says the Met Office. “Like many clouds, nocturnal clouds need water vapor, dust, and very cold temperatures to form. Cold temperatures are readily available in the mesosphere, but water vapor and dust are in short supply.” Night clouds spotted on the beach at Druridge Bay on the Northumberland coast, North East England Anita NicholsonGetty Images Although they are not visible all the time, your best bet to spot the clouds is between late May and early August each year. Be sure to wait until most of the sky is dark to see them. Have you had any luck spotting any yet?
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