NASA spots mysterious near-perfect rectangle iceberg in Antarctic

NASA spots mysterious near-perfect rectangle iceberg in Antarctic

They shared a striking image of the giant block, known as a tabular berg, after it was captured off the east coast of the Antarctic Peninsula, near the Larsen C ice shelf, according to The Sun.

NASA's ongoing, decades-long survey of polar ice has yielded some truly incredible photographs over the years, but one recent still captured what appears to be a perfectly, nearly impossibly rectangular iceberg.

While most of us think of icebergs as pointy chunks of ice with their spires sticking out of the water, these tabular icebergs are quite different.

"The iceberg's sharp angles and flat surface indicate that it probably recently calved from the ice shelf", NASA ICE said Wednesday on Twitter.

NASA tweeted a photographed of a long, flat, rectangular iceberg last week, breaking up the popular (but false) notion that icebergs are always spiked mountains of frost rising formidably out of the ocean.

The study uses research aircraft to capture three-dimensional images and monitor annual changes in thickness of sea ice, glaciers and ice sheets, with the aim of better understanding connections between polar regions and the global climate system.

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However, tabular icebergs are enormous slabs of ice with a flat top and vertical sides that form by "calving" or splintering off a much larger ice shelf.

"We get two types of icebergs".

The angular berg is called a tabular iceberg.

Tabular icebergs are the remnants of calving events, where a large strip of ice breaks free from an ice shelf.

"What makes this one a bit unusual is that it looks nearly like a square", Brunt said, noting that it's a pretty fresh break. This berg hasn't been measured yet, but Brunt says it's about one mile across, which isn't not particularly large.

Sea ice comes in many types and forms, depending on the stage of development and the meteorological, atmospheric, and other physical conditions.

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