Laser Beams can use a “Carefully Balanced Thrust” to Protect the Earth

Lasers based in space could effectively deflect small asteroids, making Earth a safer place to live, scientists from the University of Alabama in Huntsville have suggested to NASA. And it’s important, even if it’s primarily aimed at small objects for the time being, engineering professor Richard Fork says. The meteor that hit Chelyabinsk, Russia in…

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