Re: Utah meteor/comet sighting....
Cool video. I saw one this fall but nearly as impressive as that one. The one I saw had chunks peeling off and then it went bright and vanished. Not bright enough to make it daylight or anything, but a good flash never the less.
The Russians are planning a mission to change the orbit of a real big near Earth orbiting asteroid named Apophis. It's supposed to bounce off the atmosphere, and then depending on it's departure window, return and maybe smack the planet directly.