[Science] Massive, orbital laser blaster could defend against asteroid threats

Massive, orbital laser blaster could defend against asteroid threats
http://www.independent.co.uk/news/science/sunpowered-space-lasers-gravity-tractor-beams-or-a-nuclear-device--how-to-stop-asteroids-and-meteors-from-hitting-the-earth-8501065.html
Could a “Deathstar” someday defend Earth against incoming threats from space? Last Friday, asteroid 2012 DA14 -- half a football field long and weighing about 190,000 tons -- missed plane Earth in a fly-by.

More meteors create fireballs over Cuba, Florida and California
http://www.mnn.com/earth-matters/space/stories/more-meteors-create-fireballs-over-cuba-florida-and-california
The skies sure have been busy lately. In the days after the stunning meteor explosion over Chelyabinsk, Russia, that injured more than 1,200 people, three more meteor events were sighted over Cuba, Florida and California.

TechnoLogical: On the lookout for meteors
http://silverchips.mbhs.edu/story/11978
On Friday, a ten-ton meteor shattered over Russia's Ural Mountains. The resulting blast led to more than 1,000 injuries. But despite the damage caused and the fact that the blast was the largest since 1908, the meteor still came as a complete surprise.