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space travel

Stephen Hawkings’ views outside physics were more noted than notable

That’s a common problem when we ask great figures their opinion about things they haven’t studied. From a review of Stephen Hawking’s (1942–2018) last book (or the last book that could be put together plausibly under his name), Brief Answers to the Big Questions: Because of the likelihood of a nuclear confrontation or an environmental catastrophe, we should work out how to leave the planet and colonise space, Hawking reckons. “Spreading out,” he says, “may be the only thing that saves us from ourselves.” He concedes that move will involve abandoning the flora and fauna of Earth, but Hawking seems to believe that humans deserve more of a future than other species. Leaving all other life to fend for itself is Read More ›