Olympic 'UFO': It looks like a blimp

Olympic 'UFO': It looks like a blimp - Technology & science - Science - LiveScience - NBCNews.com: "About a billion Earthlings watched the Olympics opening ceremony Friday night. Did an out-of-this-world spectator tune in as well? A dimly lit, disk-shape object was spotted hovering above the stadium in NBC footage of the ceremony, and the Web has since come alive with exhaustive analysis of this "Olympic UFO.""