Laser-wielding satellite swarm to deflect asteroids - 2 views
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Lionel Jacques on 28 Mar 12"The latest idea comes from engineers at Glasgow's University of Strathclyde who suggest that a swarm of laser-wielding satellites could nudge Earth-bound asteroids off their collision course.... One proposed deflection technique involves using lasers to pulverize the surface of the asteroid, ejecting tiny bits of rock that would act as a propellant and push it onto a different course."