Could human civilization spread across the whole galaxy? - Roey Tzezana

TED-Ed Shared September 29, 2016 View full lesson: http://ed.ted.com/lessons/could-human... Could human civilization eventually spread across the whole Milky Way galaxy? Could we move beyond our small, blue planet to establish colonies in the multitude of star systems out there? These questions are pretty daunting, but their (theoretical) answers were actually put forth decades ago.

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