Though scientists in Antarctica regularly spot these steep-walled "tabular" icebergs - many almost square or rectangular - they certainly look like freakish, unnatural forms in such a wild Earth environment. But alien conspiracy fans will be disappointed to learn that it's a naturally occurring phenomenon.
The image was taken during an IceBridge flight which is a survey from the air of the planet's polar ice that gives a 3D view of the ice providing information on how it changes over time. "It probably wouldn't flip over", she said, but it could still crack and break up.
We tend to think of icebergs as jagged and pointy, with the bulk beneath the surface, and with a penchant for ruining DiCaprio romances. But this particular one is known as a tabular iceberg, which as their name implies have steep sides and a flat top. The perfectly square iceberg reportedly broke off from the Larsen C ice shelf that also produced the A-68 iceberg a year ago.
The angular berg is called a tabular iceberg. Because the recently photographed iceberg was still sharp around the edges, NASA scientists said it's likely that this berg was cleaved off not too long ago.
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The visible part of the iceberg only represents 10 percent of the entire mass, Fox News reports.
Image: A triangular iceberg was also spotted nearby.
"A tabular iceberg can be seen on the right, floating among sea ice just off of the Larsen C ice shelf", NASA's department of cryospheric sciences tweeted.
But it's now on the move, according to Professor Mark Brandon of the Open University - who says the iceberg "will not be stopped easily".
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What you're looking at here is a tabular iceberg.
That's consistent with an iceberg calved from floating ice in that region, she said. That event raised concerns that the entire shelf was on the verge of crumbling, as both the Larson A and B ice shelves did in 1995 and 2002, respectively.
Scientists took the snap from a plane used to monitor changing land and sea ice in the South Pole.
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