What is the message attached to each Voyager spacecraft?
Voyager 1 (launched September 5, 1977) and Voyager 2 (launched August 20, 1977) are unpiloted space probes that explored the outer planets: Jupiter, Saturn, Uranus, and Neptune. The two space probes then traveled beyond the solar system. Each Voyager carries a gold-coated, copper phonograph record. The records contain information about Earth, as well as a message to any possible extraterrestrial civilization the spacecrafts may encounter. Each record comes with a needle and instructions, in the language of symbols, for playing the record. The contents of the record were selected by a National Aeronautics and Space Administration (NASA) committee headed by the late astronomer Carl Sagan (1934-1996). The records begin with visual images. There are pictures of Earth, the solar system, and the Milky Way galaxy;…