澳门金沙开户注册官网:We should use nukes to deflect asteroids, says astro algorithm
点击量： 时间：2019-03-03 07:09:01
Detlev Van Ravenswaay/Science Photo Library By Jacob Aron IF AN asteroid was set to hit Earth, humanity would have to scramble to conduct the world’s riskiest experiment. We have never tried to shove a space rock off its course, so any defence effort would be a shot in the dark. People have come up with ideas – like chucking nuclear weapons at an incoming threat – but with limited asteroid defence budgets, which should we pursue?