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.
Scientists explained that the iceberg in the photo was a tabular iceberg – a large slab of ice with a flat top and vertical sides which form by calving (splitting) from a larger ice shelf. Such non-conventional icebergs can be massive, with the record-setting 11,000 square kilometer Iceberg B-15, visible from space, spotted off the Ross Ice Shelf in Antarctica in 2000.
However, in their responses to NASA, some Twitter users insisted that the spectacular rectangle-shaped iceberg was either man-made, alien-made, or both, with some insisting that nature "doesn't draw straight lines."
Others had some more bizarre 'theories'.
In any case, users stressed that the iceberg certainly looked interesting, with several suggesting it reminded them of a scene out of Stanley Kubrick's 2001: A Space Odyssey.
Others simply posted photos of other majestic tabular icebergs.