NASA scientists BAFFLED by perfectly rectangular MILE-WIDE iceberg

NASA scientists BAFFLED by perfectly rectangular MILE-WIDE iceberg

Larsen A, an ice shelf farther north on the peninsula, broke up in 1995.

A big crack in Antarctica's crumbling Larsen C ice shelf caused the huge iceberg to break free in July 2017.

However, according to NASA, there's a simpler scientific reason why the iceberg appears to be a ideal rectangle.

A rectangular iceberg in Antarctica is capturing attention online for its near-perfect shape.

The unusual looking iceberg is called a tabular iceberg, and its photo was taken for NASA's Operation IceBridge, which documents "Earth's polar ice to better understand connections between polar regions and the global climate system".

A NASA spokesman said: "It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice".

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

Brunt explained that tabular icebergs - which are usually wide, flat, and long - are created when ice shelves split.

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Scientists from Project MIDAS - a British Antarctic Survey project involving researchers from several British universities - said previous year that they feared the entire ice shelf could become unstable.

"So, here's the deal", Kelly Brunt, an ice scientist with NASA, told Live Science.

"Triangular iceberg surrounded by many different types of sea ice, off the Larsen ice shelf in the Weddell Sea", NASA said.

The agency also captured a triangular berg drifting in the Weddle Sea.

"What makes this one a bit unusual is that it looks nearly like a square", she told the LiveScience website.

She said there were two types of iceberg.

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

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