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Noctilucent cloud
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Noctilucent clouds, or night shining clouds, are tenuous cloud-like phenomena in the upper atmosphere. When viewed from space, they are called polar mesospheric clouds, detectable as a diffuse scatter
Noctilucent clouds over Laboe, Germany
Noctilucent clouds over Laboe, Germany
Noctilucent clouds over Uppsala, Sweden
Noctilucent clouds over Uppsala, Sweden
Noctilucent clouds during arctic dawn seen from high altitude
Noctilucent clouds during arctic dawn seen from high altitude
The A167 dual carriageway through Gateshead, with noctilucent clouds in the sky.
The A167 dual carriageway through Gateshead, with noctilucent clouds in the sky.
1883 eruption of Krakatoa
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Between 19 May and 21 October 1883, the volcanic island of Krakatoa began erupting, lasting more than five months. On 27 August, the island had its most significant eruption, which destroyed over 70%
Noctilucent cloud
…cloud, sodium vapour can rapidly be deposited onto an ice surface. Noctilucent clouds are first known to have been observed in 1885, two years after the 1883 eruption of Krakatoa. It remains unclear whether their appearance had anything to do with the volcanic eruption or whether their discovery was due to more people observing…
Photograph of the eruption
Photograph of the eruption
Lithograph of the eruption c. 1888
Lithograph of the eruption c. 1888
Coral block thrown onto the shore of Java by the tsunami
Coral block thrown onto the shore of Java by the tsunami
Rhyodacite pumice from the late August 1883 eruption of Krakatoa. This rock floated across the Indian Ocean for almost a year before it washed ashore
Rhyodacite pumice from the late August 1883 eruption of Krakatoa. This rock floated across the Indian Ocean for almost a year before it washed ashore at Takwa Beach, Kenya, East Africa.