Galactic Map of Every Human Radio Broadcast - How Far Have Our Signals Traveled Into Space? - discu.eu

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Despite a century of radio broadcasts, our radio signals still remain within a minuscule bubble of space in the Milky Way galaxy. https://www.popularmechanics.com/space/news/a27934/galaxy-map-human-radio-broadcasts/ 27 comments 12/9/2018 space

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My dad launched the quest to find alien intelligence. It changed astronomy. https://www.nationalgeographic.com/science/2020/06/father-launched-quest-find-alien-intelligence-changed-astronomy/ 174 comments

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