So what is REALLY happening?
The area of Antarctica where this photo was taken is the peninsula area. This is the most delicate ecosystem in Antarctica because it is north enough that the temperatures can change quite drastically.
Therefore, water flows during the majority of the Antarctic summer and icebergs like those portrayed in movies such as The Day After Tomorrow are formed rather regularly. Icebergs like these keep most of their mass below water. The water that surrounds the icebergs is warmer then the ice, so it makes sense that the ice will melt from the bottom up (which is the reverse of how ice freezes). When the underside of giant icebergs begins to melt the bergs can become very unstable.
A good experiment we can do to test this hypothesis is to find an ice cube and melt it in a glass of warm water. How does the ice melt? From the bottom or top? Does it start rocking around if you shake the glass slightly? Could you imagine that in a storm a big half melted iceberg could flip over?
That is exactly what we think happened in this case. The iceberg that was already melted on the bottom by the warmer water circling around it, became unstable, and in a storm it flipped over. The formation looks like it has been shaped by the wind or that it even was flowing water. But to the contrary the ice was melted due to the surrounding water!
Does it make sense? What do you think?
Thank you for your comments, especially Victoria of Mr. Hector's 3rd grade class. Keep reading and hypothesising and we can all come up with more answers to the really important questions!