50 years ago today, the Arecibo message was broadcast into space a single time via frequency modulated radio waves. It carries basic information about humanity and Earth.

en.wikipedia.org

50 years ago today, the Arecibo message was broadcast into space a single time via frequency modulated radio waves. It carries basic information about humanity and Earth.

en.wikipedia.org

crimeschneck@feddit.nlM to

Anniversaries: X years ago today@feddit.nlEnglish · 3 hours ago

Arecibo message - Wikipedia

en.wikipedia.org

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Anniversaries: X years ago today@feddit.nl

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