The asteroid-busting lasers powered by the SUN that could soon protect Earth

The asteroid-busting lasers powered by the SUN that could soon protect Earth | Mail Online: "Sun-powered lasers could protect Earth from any more asteroids judged to be flying too close, a new study claims.



U.S. researchers have outlined a plan for solar powered space defences which could vaporise an asteroid as big as the one which flew past Earth on Friday night in 60 minutes. The same system could destroy asteroids 10 times larger in about a year, with evaporation starting at a distance as far away as the Sun, the researchers claim."