Last February, a fireball streaked past the Russian town of Chelyabinsk, releasing 500 kilotons of energy as it ran up against some serious resistance from Earth's atmosphere and exploded, blowing out windows all over town in the process. The biggest resulting chunk of space rock finally ended its journey by crashing into a frozen lake a few dozen miles away.
Remarkably, the moment of impact was captured by a security camera located at what looks like some sort of maintenance shop near the edge of the lake. Even more remarkable is the fact that an object that had essentially caused an explosion of A-bomb proportions in the sky just moments earlier was whittled down to the size of a small boulder that created little more than a whispy puff of snow and dust upon hitting the surface of the lake. … Read more