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What Will It Take For Humans to Colonize the Milky Way?


Exoplanet rendering

Artist's rendering of an exoplanet.

Credit: NASA/JPL-Caltech

The idea that humans will eventually travel to and inhabit other parts of our galaxy was well expressed by the early Russian rocket scientist Konstantin Tsiolkovsky, who wrote, "Earth is humanity's cradle, but you’re not meant to stay in your cradle forever."

From Scientific American
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