when i lived in colorado i never saw a ufo but it is a popular place for ufo sightings. in lafayette, north of denver, they've recently been seeing strange lights in the sky. >> for a multitude of reasons, perhaps. of course, someone recorded those lights. and now that video has gone viral on the internet. so clayton sandell went to see if the truth is, in fact, out there. >> reporter: one thing's for sure -- >> what the hell is that? >> reporter: -- people in lafayette, colorado, don't know what they saw last week hovering above their homes. >> i don't think it was an airplane. definitely not. >> when it flew over there was this really weird energy. >> reporter: lester valdez saw the lights, along with all of his neighbors. >> i have never witnessed anything like that, though. >> reporter: he says they were like those tiny bright alien ships from "close encounters of the third kind." >> it was like that, where you see an object and it got into a pattern. >> they're hanging there. barely moving. >> reporter: leroy van der vegt and his son nick managed to