Imagine . . . you're in the woods after dark. Eerie green lights appear in the distance. Then there's a sudden flash and everything is dark again. You decide to take a closer look. You come upon a saucer-shaped craft hovering silently just above the ground. You reach out to touch it, but the object suddenly shoots up into the sky. Have you just seen a UFO?

Some people say they have had experiences like this. Are they telling the truth? To find out, Kelly Milner Halls investigated stories of eyewitnesses from around the world. She explored UFO sightings, landings, crashes, aliens, and even a few hoaxes. She also interviewed several of the world's UFO experts. Examine her findings and decide for yourself whether visitors from other worlds are real.