Fifty-five years after humans first escaped the bounds of Earth and launched a satellite into orbit, we are about to cross another frontier.
We will soon extend our reach for the first time into true outer space – the vast emptiness beyond the protection of the sun.
Our emissary is a small, aging spaceship carrying a friendly message from President Jimmy Carter along with recordings of a baby crying and a whale singing, just in case anyone is out there to receive them.
Voyager 1 was launched...
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