Published: Tue, October 23, 2018
Science | By Michele Flores

This perfectly rectangular mile-long iceberg was discovered floating in the Antarctic

This perfectly rectangular mile-long iceberg was discovered floating in the Antarctic

Brunt explained to the science website that tabular icebergs are long, wide and flat and break away from ice shelves.

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

Nasa had found a piece of floating ice in Antarctica that is so flawless, it looks like it was deliberately cut.

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

The unusual mass, known as an angular iceberg, was spotted during a flyover of the east coast of the Antarctic Peninsula.

Others simply posted photos of other majestic tabular icebergs. Such non-conventional icebergs can be massive, with the record-setting 11,000 square kilometer Iceberg B-15, visible from space, spotted off the Ross Ice Shelf in Antarctica in 2000.

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While most of us think of icebergs as pointy chunks of ice with their spires sticking out of the water, these tabular icebergs are quite different.

NASA ice scientist Kelly Brunt said Tabular icebergs come about via a process "a bit like a fingernail growing too long and cracking off at the end".

According to the National Snow & Ice Data Center, ice shelves are permanent floating sheets of ice that connect to a land mass.

NASA shared an image of the perfectly formed iceberg on its Twitter page, after spotting it while flying over the region as part of Operation Icebridge, the largest airborne survey of Earth's polar ice. This berg hasn't been measured yet, but Brunt says it's about one mile across, which isn't not particularly large.

"What makes this one a bit unusual is that it looks nearly like a square", she added. This iceberg looks pretty fresh, she said.

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