NASA Photographed a Rectangular Iceberg Floating off Antarctica

Stock image  Pixabay

NASA has shared a photo of a rectangular iceberg floating in the Weddell Sea off Antarctica, its flat top and straight edges appearing so exact as to suggest Mother Nature used a saw, per CTV News. But alien conspiracy fans will be disappointed to learn that it's a naturally occurring phenomenon.

The image was captured as part of NASA's Operation IceBridge mission to image Earth's polar regions. People didn't just find it interesting, they became totally obsessed with its freaky geometric perfection and demanded more.

In the case of tabular icebergs, she said, that subsurface mass is usually regular-looking and geometric, similar to what's visible above.

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Last year, the iceberg A-68 broke off Antarctica's Larsen C ice shelf after years of cracks spreading across the ice - but it's remained "stuck" near the ice shelf. But these rectangularly shaped icebergs are called as tabular icebergs. The result is an iceberg with a sharp edge. "The ice has time to spread out and become perfectly flat", Poinar added, explaining that as the ice shears off, or calves, it may be highly regular in shape.

NASA is apparently happy to oblige, and has now directed fans to a Flickr page that features more of the unusual iceberg as well as other tabular slabs that the team documented while flying high over the frozen region.

NASA did not say how large the iceberg was. That event raised concerns that the entire shelf was on the verge of crumbling, as both the Larson A and B ice shelves did in 1995 and 2002, respectively.

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Most people think of icebergs as jagged, frozen mountains with only a fraction of their bulk sitting above the surface of the water, but it turns out that there's actually two kinds of icebergs: tabular and non-tabular.

That image also captures the massive A68 iceberg in the distance.

Scientists have repeatedly warned that the world's sea ice is in danger of completely disappearing as the effects of climate change continue to be felt.

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