UMBC JCET Scientist at NASA Goddard Space Flight Center, Christopher Shuman, who has been watching the Larsen C Ice Shelf explained that the main iceberg (which was the size of about the size of the state of DE when it split from the shelf in July) has had a previous series of collisions, resulting in larger and smaller fragments.
"I was actually more interested in capturing the A68 iceberg that we were about to fly over, but I thought this rectangular iceberg was visually interesting and fairly photogenic, so on a lark, I just took a couple photos".
While the rectangular ice might look a little unreal, they're still just a natural part of the process of icebergs breaking off the Larsen C ice shelf in Antarctica.
This iceberg looks pretty fresh, she said.
In the statement from NASA, Harbeck said he had actually been more interested in capturing the massive A68 iceberg, the size of the U.S. state of DE, which split off from the Larson C ice shelf in 2017.
The spectacular photo of a massive rectangular iceberg with perfectly pointed edges, taken by a NASA research aircraft last week, left people scratching their heads as to how on earth this was possible. She added that these flat-topped and angular ice sheets are typically wider than they are deep, and can span hundreds of miles across.
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The edges are still pointed, and have not yet been worn down by the ocean waves.
But why such straight lines?
"The iceberg's sharp angles and flat surface indicate that it probably recently calved from the ice shelf". That iceberg measured about 2,300 square miles, as NPR's Geoff Brumfiel reported.
"So, here's the deal", Kelly Brunt, an ice scientist with NASA, told Live Science.
It studies yearly changes in thickness of sea ice, glaciers and ice sheets.