This video discusses the Voyager 1 and 2 missions, which were launched by NASA in 1977 to explore the outer planets of our solar system. The Voyager spacecraft carried "Golden Records", which are phonograph records containing images, sounds, and greetings intended for extraterrestrial life. The video explains the purpose and contents of the Golden Records, as well as the scientific findings of the Voyager missions, including the discovery of new moons, volcanic activity on Io, and the exploration of interstellar space.