Since 2005 BC over 35,000 meteorites are known to have hit the Earth—but just 1,107 have actually been seen falling. This visualization shows how they pockmarked our planet over time.
Created by Carlo Zapponi, the animated visualization is based on data from the Nomenclature Committee of the Meteoritical Society. It's quite fun to watch the animation, as the meteorites fall onto the graph, one at a time. [Bolid.es via Flowing Data]