Here's how that weird, rectangular-looking iceberg came to be

Here's how that weird, rectangular-looking iceberg came to be  NBCNews.com That rectangular iceberg spotted by NASA is real  CNN Mysterious 'perfectly rectangular' iceberg spotted floating in Antarctica  Yahoo News NASA ICE on Twitter: "From yesterday's #IceBridge flight:Triangular iceberg surrounded by many different types of sea ...  Twitter NASA discovers incredible MILE-long perfectly rectangular iceberg floating in the Antarctic  The SunFull coverage

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