http://img718.imageshack.us/img718/2489/asteroidtiming.jpg [Broken] Here is a scene of a star destroyer firing on an asteroid. The entire explosion takes about 10 frames of video -- less than a third of a second. It's widely believed that the asteroid in question is about 40 meters in diameter and made of nickel-iron. It's also widely believed that this asteroid was vaporized. I'm curious about the scientific accuracy of the explosion. Do you think the asteroid was really vaporized? If so, would the vapor disperse in less than a third of a second like this? I've heard the opinion of one person who claims to be a physics expert and says the gas dispersion is accurate but I have serious doubts about that myself.