Pete Oxford / Three granite peaks of Paine mountain range, Torres del Paine National Park, Patagonia, Chile.
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Ann & Steve Toon / Wildflowers, including poppies (Papaver rhoeas), corn marigold (Glebionis segetum), cornflowers (Centaurea cyanus) and corn chamomile (Anthemis arvensis), being grown for seed by Landlife, Fir Tree Fa...
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David Noton / Aurora Borealis (Northern Lights) over the Klondike River, Yukon Territories, Canada, September 2013.
Brent Stephenson / Low wispy clouds around mountains above Wilhelmina Bay, Antarctic Peninsula, Antarctica, January 2012.
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Brent Stephenson / Icebergs floating in crystal clear calm waters with underwater part of iceberg visible. Wispy clouds and reflections, Neko Harbour, Antarctic Peninsula, Antarctica, January.
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Peter Cairns / Northern lights over Skagsanden, Flakstadoya, Lofoten, Norway.
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John Waters / Wide angle view looking up at over-arching branches and canopy of leafless deciduous trees against blue sky with some wispy cloud, Devon, UK, December 2013.
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Aflo / Y-2605 Wispy clouds in blue sky
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Yva Momatiuk & John Eastcott / Wispy cirrus clouds, Denali National Park, Alaska
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Yva Momatiuk & John Eastcott / Snowy summits with wispy clouds at sunrise, fall, Alaska Range, Denali National Park, Alaska
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Nick Upton / Lesser hawkbit (Leontodon saxatilis) seedheads growing on coastal sand dunes, Kenfig National Nature Reserve, Glamorgan, Wales, UK, July.