The Voyagers' Message in a Bottle . ... Credit Copyright: Voyager Project , JPL , and NASA Explanation: Launched in the summer of 1977 , NASA's Voyager 1 and 2 spacecraft are now over 4.5 billion miles from the Sun. ... A 12-inch gold plated copper disk (pictured) containing recorded sounds and images representing human cultures and life on Earth, is affixed to each Voyager - a message in a bottle cast into the cosmic sea . ... NASA Web Site Statements, Warnings, and Disclaimers . ...