Icebergs are large pieces of ice that broke off from a snow-formed glacier or an iceshelf. Where a glacier meets the sea, humongous chunks of ice break off from the face of the glacier; this is known as “calving” and this is how many icebergs are “born.” Old icebergs may be hundreds of thousands of years old. Many years of falling snow, consisting of snow crystals by the countless billions, act like tiny mirrors and reflect the light. Some icebergs are also formed by freezing ocean water instead of snow and those areas are full of tiny air bubbles. Beautiful bluish streaks that appear in some icebergs are caused by the refreezing of meltwater that previously filled very old glacier ice crevasses. The very dense, very old ice captures the sun’s light and allows only the high-energy blue wavelengths to escape. The beautiful blue icebergs change color and intensity according to the position of the sun.[ 37 Pictures]
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Killer Whales, a glacier and icebergs
The photographer notes, “Two transient orcas make their way through an Alaskan fjord.”Rennett Stowe
Perito Moreno Glacier with a backdrop of black mountains.
Perito Moreno is the most beautiful, interesting and, consequently, the most visited glacier in Argentina. Another gorgeous place where icebergs are “born.” Ana_Cotta
River runs under the ice
The photographer notes, “This river came out from under the glacier. The compact blue ice in the background was lit up by the pure sunlight.” Matthew Hoelscher
Briksdalsbreen Glacier where icebergs break off
Briksdalsbreen, in Norway, is part of west arm of Jostedalsbreen National Park — Jostedalsbreen is Europe’s largest land glacier. Vicrogo
Perito Moreno – icebergs falling
Photograph noted, “View from lower trail over 600 meters [over 1,968 feet]down from the top” Matthew Hoelscher
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Polar bear on sea ice close to Svalbard
The ice island is made from compacted icebergs. Hannes Grobe
Blue iceberg with Adelie penguins
Photographer noted, iceberg with a resting group of Adelie penguins (Pygoscelis adeliae); the iceberg consists of blue ice, indicating that this is very old ice from deeper parts of the Antarctic ice sheet. Image was taken in the northern part of the Weddell Sea, Southern Ocean, Antarctica during expedition ANT-VIII/3 of the german research vessel POLARSTERN.
An iceberg…love the blue color Chadica
Iceberg with a hole in the strait between Langø and Sanderson Hope south of Upernavik, Greenland.Kim Hansen
Navigating incredible blue icebergs in Argentine pululante
Iceberg with a hole
Photographer noted, “Icebergs around Cape York,Greenland. The icebergs are beautiful and display many interesting shapes. You could see the iceberg with a hole at the image. The hole was caused by weathering effects – erosion by waves, wind and melting.”Mila Zinkova