Iceberg shaped like a colossal sheet cake drifts through Antarctic

Antarctic iceberg snapped by NASA

A weird iceberg has been spotted by NASA scientists - in the shape of a near-perfect rectangle. The calving is accelerated when warmer temperatures cause meltwater to trickle into the splitting cracks and widen the ice shelf division.

The picture was taken last week by scientists on a Nasa research plane. Sitting amid a chaotic jumble of floating ice, it looks perfectly rectangular, as though it was deliberately cut.

The folks at NASA captured an incredible image of a near-perfect rectangular iceberg floating off the Antarctic Peninsula.

She said there were two types of iceberg.

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

NASA scientist Kelly Brunt compared tabular icebergs to "fingernails that crack off" in an interview with LiveScience.

Images of the unusual icebergs were captured on NASA's IceBridge flight, an airborne survey of Arctic and Antarctic ice yielding detailed, three-dimensional views of ice sheets, ice shelves and sea ice.

"In addition, IceBridge collects critical data used to predict the response of Earth's polar ice to climate change and resulting sea-level rise".

The tabular iceberg, as it's called, is believed to have broken off from the Larsen C ice shelf, which calved a berg the size of DE past year.

The expansive ice shelves that create the icebergs are hanging off of Antarctic land, somewhat similar to the flimsy tape extended out from a tape measure.

He says it's a kind of formation called a tabular iceberg.

Like all icebergs, Brunt said only 10 percent of this particular tabular berg was visible above the waterline, with the majority of it submerged.

Categorized as a tabular iceberg, the square-like iceberg was estimated to be over a mile across.

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