The enigmatic summer phenomenon shining from the edge of space
Noctilucent clouds, the highest clouds in Earth's atmosphere, are appearing in the northern hemisphere as summer begins. Scientists are investigating whether these electric-blue formations are linked to industrial pollution, volcanic activity, or climate change.
Why it matters
Understanding the origins of these clouds provides insight into atmospheric changes and the long-term impact of human activity on the upper atmosphere.
Noctilucent clouds shine brightly over Blyth pier in Northumberland. Photograph: Owen Humphreys/PA View image in fullscreen Noctilucent clouds shine brightly over Blyth pier in Northumberland. Photograph: Owen Humphreys/PA Weatherwatch Environment The enigmatic summer phenomenon shining from the edge of space With no recorded sightings before 1885, noctilucent clouds have been linked to volcanoes, pollution or climate change
The article presents scientific theories regarding a natural phenomenon without political or social bias.
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