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The breakdown of a contrail, spotted over Great Crag, Watendlath, English Lake District, England
Cumulus over Twisp, Washington, US
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"Someone was painting the sky while I watched," as Anabelle described, when she viewed this skyscape over Exeter, Devon, England
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Cirrus cloud formations from homogenitus via prior contrails, which Dan spotted when he was on his way to a Green Bay Packers football game earlier this year, as he travelled through Madison, Wisconsin, US
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Horseshoe vortex spotted over Leuven, Belgium
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A cascade of clouds over the Georgetown airport in Central Texas, near Georgetown, Texas, US
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A face in the sky gazing at a contrail, which looks to be an extension of the fishing pole, spotted over the Rogerstown Estuary, County Dublin, Ireland.
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Cirrus uncinus spotted over Indianapolis, Indiana, US
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Sunset on the longest day of the year, seen over the Wye Nature Reserve, Kent, England
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Sunset over Charlo, Montana, US
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Cirrus vertebratus, which Sabine also views as her stairway to heaven, spotted near Halde Hoheward, Herten, Germany
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Cirrus that appear to have developed by way of homogenitus via contrails, spotted over Wythall, England
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Contrails interwoven like DNA, spotted over Arlington, Washington, US
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A view from above the clouds, over Lake Superior, Ontario, Canada
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A giant fish was seen when Kate looked up at the sky over Hadfield, Derbyshire, England
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A contrail reaching across the sky over Melbourne, Victoria, Australia
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