Nuke a Killer Asteroid?

Department: 
Near-Earth Objects
Teaser: 

"If it was discovered that an asteroid was going to collide with Earth within the next 50 years, using nuclear explosives to divert or disperse the hostile asteroid could be the best alternative, according to scientists who have studied asteroids and solutions to prevent Earth impacts."

Source: 

SPACE.com Download time: Jun 25 2010 10:58 AM ET

If a massive asteroid is hurtling toward Earth and threatening to sterilize the entire planet, blasting it to pieces with nuclear bombs might seem fit for a Hollywood movie. But, it could, in fact, be a viable solution to the potentially apocalyptic event, according to scientists who have studied asteroids and possible solutions to prevent Earth impacts.

There are some strings attached: The interloping space rock would have to pose a definite asteroid threat to Earth in a relatively short timeframe to justify such a drastic option, the scientists said. And blowing up an asteroid runs the risk of creating more debris to worry about later, they added.

If an asteroid was expected to collide with Earth within the next 50 years, using nuclear explosives to divert or disperse the hostile space rock could be the best alternative, explained David Dearborn, a research physicist at the Lawrence Livermore National Laboratory in Livermore, Calif.…

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