Nature follows specific laws, but results are often irregular and asymmetric like clouds and coastline and ocean waves. So when NASA scientists flying over the northern Antarctic Peninsula last week as part of Operation IceBridge spotted a neatly cut rectangular piece of iceberg floating amidst a jumble of broken ice, everybody thought it was pretty interesting.

While icebergs with relatively straight edges are common, this was the first time anybody has seen an iceberg with two corners at right angles, explained Jeremy Harbeck, senior support scientist of Operation IceBridge.