What message would you want ET to find?

Science Friday looks at the Golden Record, an interstellar greeting and time capsule. Intended for any intelligent extraterrestrial life form—or future human—who may find it.

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In 1977, NASA launched Voyager 1 and 2 to explore and document our solar system and the interstellar space beyond. The craft will drift for billions of years in the emptiness, each carrying a Golden Record inscribed with a message to any intelligent spacefaring civilization that discovers it. These recorded artifacts included a diagram of DNA, greetings in 55 languages, a map of our solar system’s position relative to stellar landmarks, Louis Armstrong’s “Melancholy Blues,” and even the sound of a kiss.

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