2008. augusztus 15-én éjjel annyi finom szaharai eredetű por volt a levegőben, hogy a Hold elkékült.
On 15 August 2008, there was such a great amount of fine Saharan dust in the air that the Moon turned blue.




Spaceweather.com
[...] This year was the first day of Pentecost on the nones of June; and on the Tuesday following were seen four circles at mid-day about the sun, of a white hue, each described under the other as if they were measured. All that saw it wondered; for they never remembered such before. (The Peterborough Chronicle, 1104 A.D.)
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