Watch HDToday. In 1977, two scientific research satellites, Voyagers I and II, were sent into orbit to travel to the farthest reaches of the solar system. This documentary compiles the images beamed back to Earth by the Voyagers on their four billion-mile journey, including spectacular landscapes of Saturn, Uranus, Neptune, and their moons, which capture a remarkable otherworldly beauty and helped redefine scientific notions of the look and climate of the planets. The Voyager Odyssey was declared one of the 100 Best Documentary Films Ever Made in Entertainment Weekly's "Guide to the Greatest Movies Ever Made."