Dec 10, 2025
Frozen sunset
georgeduluth
seen from Switzerland
seen from Russia
seen from Colombia
seen from United Kingdom
seen from United States
seen from Serbia
seen from Malaysia
seen from Germany
seen from Singapore
seen from Germany
seen from United States
seen from Malaysia
seen from China
seen from United States
seen from Switzerland
seen from United States
seen from Singapore
seen from United States
seen from China
seen from Switzerland
Frozen sunset
georgeduluth
Frost beard on my walk in the woods
Frost beard, Västerlanda, Sweden, 28th December 2025
Frost beard is also known as hair ice, and it's one of my favourite natural phenomena.
It only occurs on decaying broadleaf wood, and typically forms on snow-free ground, in conditions just below freezing and with high air humidity. Hair ice is created when carbon dioxide from the decomposition process forces water out of the wood, causing it to freeze into hair-like rays.
Frost beard, Västerlanda, Sweden, 28th December 2025
Normally, ice crystals this fine would merge into larger crystals and lose their shape, so something must be preventing this from happening, or hair ice wouldn't form.
Scientists have believed since the early 20th century that this something was probably antifreeze compounds formed by a winter-active fungus. But it would take almost a century before the fungus was identified in 2015 as Exidopsis effusa (which sadly doesn't have a common name), by Swiss and German scientists Hofmann, Preuss, and Mätzler.
Abstract. An unusual ice type, called hair ice, grows on the surface of dead wood of broad-leaf trees at temperatures slightly below 0 °C. W
The lighthouses on Lake Michigan have been tranformed into stunning ice sculptures this week ~ with the storm systems moving through.
Stunningly beautiful. 🥰
~beccawise7💜🖤
📷: Timelessarielphotography
From January, but odds are it's looking that way again, with all the below-freezing temps we've been having.
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Frost flowers are one of the most delicate and intricate-looking natural ice formations. They are not actually any kind of vegetation, rather they are formed from an array of crystalline frost spikes that appear when warm water vapour emerges from thin surfaces of ice and hits cold air.
To form, frost flowers usually need calm, relatively windless conditions and a temperature difference of 15 degrees Celsius between the atmosphere and the ice surface
Glacial ice photos by Paul Souders
Lake Baikal in Siberia, Russia