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Notes and Reflections on Books and Media

by Hannah Leitheiser

asteroid terrorism

pale blue dot: a vision of the human future in space

carl sagan




carl sagan's recommendation in that humans not try to develop a system to nudge earth-bound asteroid away from collision. not yet, anyway. why? any technology that can nudge asteroids away can also nudge them toward, and sagan's not convinced humanity could safeguard against cosmic terrorism.