Published: Tue, October 23, 2018
Research | By Raquel Erickson

Iceberg shaped like a colossal sheet cake drifts through Antarctic

Iceberg shaped like a colossal sheet cake drifts through Antarctic

Last year, a giant iceberg the size of DE - named A-68 - broke off from Larsen C, fuelling concerns it could be on the brink of collapse.

It looks so flawless that it seems Photoshopped - but a unusual perfectly rectangular iceberg near Antarctica is a natural phenomenon, NASA scientists say.

The discovery was made as part of Operation IceBridge, the largest ever aerial survey of the planet's ice around Greenland and in Antartica.

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.

It studies yearly changes in thickness of sea ice, glaciers and ice sheets.

A huge, flat iceberg with flawless, right angles was spotted on October 16 by NASA's Operation IceBridge floating among sea ice just off the Larsen C ice shelf.

"We get two types of icebergs". This berg hasn't been measured yet, but Brunt says it's about one mile across, which isn't not particularly large.

Scientists from the European Space Agency wrote in September, 'Sea ice to the east and shallow waters to the north kept this giant berg, named A68, hemmed in.

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

Unlike the icebergs of non-tabular variety, such as the irregularly shaped berg that sunk the Titanic, these chunks of ice are distinguished by their flat tops, steep sides, and sometimes massive sizes.

"What makes this one a bit unusual is that it looks nearly like a square", Brunt said, adding that it's probably not very old since wind and water have yet to soften its sharp edges.

"In the open water, grease ice is forming".

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