NASA’s sea ice survey captures freakish, perfectly rectangular iceberg

NASA Finds Perfectly Cut Rectangular and Pizza Shaped Icebergs in Antarctica View Pics

The iceberg NASA photographed is tabular, which means its basically table-shape: flat on the top and vertical at the edges.

On Twitter, NASA's ICE team responsible for polar research posted a weird picture showing an iceberg that was nearly a flawless rectangle. When an iceberg breaks off from a shelf of floating ice like Larsen C, there's no friction controlling how it breaks up.

The Larsen C ice shelf is being closely monitored by scientists after showing signs of breaking up.

The agency also captured a triangular berg drifting in the Weddle Sea. Last month, scientists captured on film the moment that a huge iceberg broke from a glacier in eastern Greenland. The mission is designed to provide accurate 3D views of the ice created in the Arctic and Antarctic while delivering up-to-date information on changes in the ice shelves. "And then you have what are called 'tabular icebergs'".

Its precisely cut corners show that it hasn't been around that long, because the sharp edges would become round from exposure to wind and waves.

NASA's IceBridge aircraft spotted the iceberg during a routine aerial survey.

Prince Harry speaks about "newest addition" to his family
The Duke and Duchess of Sussex held hands as they walked along the Kingfisher Bay Jetty in Fraser Island on Monday. "It's a bit of a double whammy for her, she said, as she has both the baby and jet lag to contend with".

"[Icebergs] look like these handsome pristine white things from a distance, but if you look a little closer, they're really mangled and full of cracks", she says.

Such objects are not unknown, however, and even have a name - tabular icebergs.

"The ice shelves that produce the icebergs are extremely flat and expansive, so we often see nearby tabular icebergs similar to the one seen in the photo", Brooke Medley, NASA's Operation IceBridge deputy project scientist, added over email.

While it is hard to estimate the size of the iceberg from the photograph, experts said it was likely over a mile (1.6 kilometers) in length.

Quoting glaciologist Jan Lieser, who is with the Antarctic Climate & Ecosystems Cooperative Research Centre, the report stated that straight lines and sharp angles on ice sheets are a known phenomenon.

Just remember though, next time you see a weirdly rectangular iceberg, your eyes do not deceive you.

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