Nasa photographs rectangular iceberg

Nasa photographs rectangular iceberg

Nasa photographs rectangular iceberg

"You can just get these fracture lines that can form these interesting geometric structures", he said.

Despite its usual appearance, "tabular icebergs" like these are actually completely natural, Kelly Brunt, a NASA glaciologist and an associate research scientist at the University of Maryland said in an interview with Live Science.

Nasa ICE on Twitter also posted a really cool GIF of the rectangular icebergs.

NASA also shared a picture of a perfectly triangular block of ice found nearby and taken on the same trip, Operation Icebridge.

Mr Harbeck said that seeing icebergs with such straight edges was not unusual.

The find was part of NASA's Operation IceBridge - a series of aircraft missions that survey how the Earth's polar regions have changed in the recent years.

When we think of icebergs, we tend to think of huge chunks of ice with pointy spires and domes, with its bulk extending down below the surface of the water. "And then you have what are called "tabular icebergs", she said.


The US space agency's explanation that the odd-looking iceberg's sharp angles and flat surface was an indication that it had recently broken off from a larger iceberg didn't seem to cut it online. At that point, tides or strong winds could break icebergs off.

She explained that tabular icebergs remove themselves from the edges of ice shelves in a process similar to how a fingernail which grows too long ends up breaking.

A case in point would be a triangle-shaped iceberg spotted by NASA scientists recently and tweeted on October 19.

"What makes this one a bit unusual is that it looks nearly like a square", she added in an interview to Live Science.

It looks, in fact, like a relative shrimp compared to some of its larger kin - although it is likely over 1.6 kilometres (1 mile) across, Brunt told LiveScience.

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

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

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