Nature is definitely full of surprises! Photos of two strange icebergs of rectangular shape shared by NASA make people talk about them. According to reports received, the photos were taken by the US Space Agency’s Operation IceBridge as it flew over the northern Antarctic Peninsula on 16 October 2018.
According to C. Jeremy Harbeck, principal investigator of the IceBridge project to monitor the evolution of ice floes and glaciers, the icebergs were spotted floating on the side of the “Larsen C” ice pack. It is impossible not to spot them right away as they mark out the other ice blocks in the area.
Published on social networks, the pictures immediately fascinated the Internet users who quickly disseminated them massively on the web.
The two icebergs photographed by NASA are particularly fascinating because of their almost rectangular geometric shape. It is as if they had been cut precisely, as their edges are perfectly smooth, clean and with perfectly right angles… We can say that they are huge slabs of ice.
But the truth is, this type of iceberg has a name. They are called “tabular icebergs” and contrary to what many probably think, this phenomenon is not as rare as it seems.
Indeed, according to explanations provided by the media France Culture, tabular icebergs are perfectly natural phenomena. Their geometric contours are indeed the work of Mother Nature. Their particular shape is explained by the fact that they come from a specific type of glacier located along a wide valley with a slight slope.
When this category of glacier breaks under the pressures of currents, tides, waves and their own weight, the break is perfectly clear. The lines are perfectly straight and steep, which usually gives them their rectangular shape.
Also, 18 years ago, scientists discovered the B15 iceberg. In addition to being all angled, this tabular iceberg had the particularity of being immense with its 295 km long and 37 km wide!
All images in this article, including the front page image, are from : NASA / Jeremy Harbeck. (Cropped)