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Humbug

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It looks like a giant striped candy, but this humbug is in fact an ice block spotted in the Antarctic by Norwegian sailor Oyvind Tangen. It reminded him of something he ate as a child, so he took a picture of it.

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Tangen was on board a research vessel 1,700 miles south of Cape Town and 660 miles north of the Antarctic. As his journey progressed he found more, and these are his pictures.

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Most ice in the Antarctic is formed as snow falls on the ice sheet and is compressed.

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Tiny bubbles in the ice make it appear white. However, occasionally the bubbles get squeezed out, and this gives the ice a blue appearance.

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Some stripes form as the ice melts and refreezes. Others are filled with dust and soil, and appear brown, black or yellow. Some are filled with algae and appear green.

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Very cool. RM

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