NASA announced the image of the ice floated square, never seen before

Have you ever thought that a perfect rectangular ice sheet like this is a natural product?

Nature creates all things with different shapes. But most things are not perfect, most of them are asymmetrical and . ramshackle. For example, you will rarely see a natural street that has a perfect turn angle of up to 90 degrees.

So the recently published photo by NASA has made netizens seized. It was an iceberg in the Antarctic sea, and in the midst of a glacial glacier, this ice had a rectangular shape in an extremely perfect way, as if it were chiseled by humans.

Ice sheet announced by NASA in the past week.

The bizarre shape of the ice sheet has raised many speculation? Alien appears? Or is there a group of people who secretly cut and cut this ice for a reason no one knows?

But it turns out, this is a completely natural ice sheet - that's the most unexpected thing.

Normally when it comes to the concept of icebergs, we think of jagged, pointed ice and hatching at the bottom. However, it is only one of two forms of ice that has been recognized by the scientific community, called "non-tabular iceberg" .

The other is "tabular iceberg" - or tabular iceberg , which has a more rectangular shape. They are large ice sheets with a flat top, nearly vertical edges, often separated from permanent ice shelves.

According to Kelly Brunt, a geographer from the University of Maryland (USA), the process of creating tabular tape can be visualized as if your nails grow too long and break. When the ice shelf breaks, it forms an ice sheet with neat, straight lines and looks very smooth.

In particular, these tabular blocks can be very large, with an area of ​​hundreds or even thousands of square kilometers. As the largest iceberg in history ever recorded reached 11,000 km ² .

Brunt said that NASA's iceberg is a new block of ice, so the area has not been announced yet. And because it is a new ice sheet, the lines are still " standard" - because the sea and wind have not yet affected it. Based on images, it is also difficult to achieve the record size above.

In addition, it is possible that the iceberg is not as perfect as the photo. Perhaps the other end of the iceberg is jagged and unbalanced, and if you look at it completely, it's not so much that the netizens are surprised.