In order to find advanced intelligent creatures on other planets, Voyager 2 carried the record "Voice of the Earth", which is a gift from human beings to aliens. On this copper record with a diameter of 30.5cm and a storage capacity of 654.38 billion years, 654.38+065.438+05 pictures representing the origin of human beings and the development of civilization were recorded, including two pictures of the Great Wall in Wan Li and the dining of people in China. It also recorded 35 kinds of sounds of the earth's nature, such as wind and rain, thunder and lightning, birds singing, animals chirping, people laughing and babies chirping, as well as 27 songs of different times, regions and nationalities on the earth, as well as greetings from human beings to aliens in 55 languages.