“One consequence of this train of argument is that, even if civilizations commonly arise on planets throughout the Galaxy, few of them will be both long-lived and nontechnological. Since hazards from asteroids and comets must apply to inhabited planets all over the Galaxy, if there are such, intelligent beings everywhere will have to unify their home worlds politically, leave their planets, and move small nearby worlds around. Their eventual choice, as ours, is spaceflight or extinction.”
Quote by Carl Sagan
Work
Pale Blue Dot: A Vision of the Human Future in Space
This book delves into the possibilities of human expansion into space, reflecting on the implications and significance of our existence in the vastness of the universe. more
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