What's really going on though, surely if these were normal it would have been documented a very long time ago, now there this is the second one! via unexplained-mysteries: Another intriguingly geometric iceberg has been spotted in Antarctica during an Operation IceBridge aerial survey. The iceberg, just like the last one, was captured on camera off the Larsen C ice shelf as part of an ongoing project aimed at monitoring changes in the polar ice caps. While this one is not quite as geometrically precise as the one that went viral last week, it does demonstrate that this particular phenomenon is actually quite common. Icebergs of this type, which are known as tabular icebergs, typically split from the edges of ice sheets through a process that is not dissimilar to a fingernail growing too long and breaking off at the end. Below is a photograph of the previous iceberg. "I thought it was pretty interesting; I often see icebergs with relatively straight edges, but I've not really seen one