What happens when you give a brainy, hyperactive astronomer his own TV show? Well first off, explosions happen. The excitement here at Discover headquarters is palpable--only three days until we get to watch our Bad Astronomy blogger, Phil Plait, tear up the Discovery Channel with his new TV show, Bad Universe. In the inaugural episode Phil examines the threat of an asteroid impact on Earth, and gets his hands on a whole lot--seriously, a whole truckload--of explosives to model the potential disaster. But it's not all doom and gloom; he also explains what we can do "to keep an impact from ruining our whole day," as he says. The show premieres this Sunday, August 29th at 10 p.m. Here's a sneak peak: