During breakfast on June 30, 1908, a man named S.B. Semenov was sitting on a porch at a northern Russian trading post when the sky burst into flames. He looked up and saw the heavens appear to split apart, and he felt as though his shirt was on fire; after a moment, a heavy blow knocked him off his feet and he passed out. The inferno, afterward known as the Tunguska Event, was a high-altitude explosion of a meteor or a comet--but nobody ever found the remains.
NASA's moon-smashing mission may not have provided a huge show for the folks on Earth, but now there's sweet vindication for scientists. The plume of lunar debris kicked up from ancient lunar crater kicked up 24 gallons of water, LCROSS mission staff reported today.