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30 years after Voyager launch, time to again ask who we are

The Golden Record mounted to the side of the space probe was meant to tell other worlds about life on Earth, but it also holds lessons for society today.

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Thirty years ago, on Aug. 20, 1977, NASA launched a Golden Record into space: a 12-inch, gold-plated disc of music, pictures, sounds, and greetings from planet Earth, bolted to the side of a Voyager space probe.

The idea behind the record was simple. Once Voyager 1 and 2 studied the outer planets – Jupiter, Saturn, Uranus, and Neptune – they would become the first man-made objects to leave our solar system for interstellar space. Why not include an introduction to Earth on the slim hope that the probes might one day be found by another life-form? We could reach across the galaxy and shake hands.

Carl Sagan, the noted astronomer from Cornell University, led the team creating the record. For months they consulted far and wide to come up with something that would truly reflect the great diversity and potential of life on Earth.

So what's on the Golden Record?

The team chose 116 pictures, everything from the Great Wall of China to Greek fishing boats to Jane Goodall studying chimpanzees. They added 12 minutes of Earth sounds, including rain, a train whistle, and a human heartbeat. They chose 87-1/2 minutes of music as varied as Peruvian panpipes and Chuck Berry's "Johnny B. Goode." Finally, they included greetings in 55 languages and a message from then-president Jimmy Carter: "We human beings are still divided into nation-states, but these states are rapidly becoming a single global civilization.

"We cast this message into the cosmos ... a token of … our thoughts and our feelings. We are attempting to survive our time so we may live into yours…. This record represents our hope and our determination and our goodwill in a vast and awesome universe."

When Carter wrote his message in 1977, Americans were dealing with the betrayal of Watergate and the wounds of the Vietnam War. The country was divided; Americans' faith in themselves was shaken; their place in the world uncertain. Still, they asked the question – Who are we? – and sent the answer into the vast expanse of space.

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