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A massive slab of iceberg that recently separated from the Larsen C ice shelf in Antarctica is so geometrically perfect that it almost looks unreal.

NASA shared the photo of the iceberg that has since become viral. On Twitter, it fetched over 3,000 retweets, 6,000 likes, and hundreds of responses. It has captured the imagination of many, with some theorizing that it was made by aliens.

However, there is no giant conspiracy around the perfectly rectangular slab of ice. It was a naturally occurring phenomenon called tabular ice which, unlike the iceberg that sank the Titanic in 1912, has flat tops and steep sides.

Sometimes, these tabular icebergs are gigantic in size, measuring hundreds of miles in length and hundreds of feet in height.

To read more, click here.

Category: Weird Desk