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Space & Astronomy

Nukes could be used to destroy asteroids

By T.K. Randall
December 22, 2014 · Comment icon 52 comments

Asteroids pose a constant risk to us here on Earth. Image Credit: NASA/JPL-Caltech
The ultimate weapons of mass destruction could one day save us from complete annihilation.
For years campaigners have been attempting to encourage world leaders to decommission all of their nuclear warheads, a move that would presumably help to establish peace, yet there is one threat to our civilization that might warrant keeping some of them around.

New research at Los Alamos, the government's space research center in Mexico, has been attempting to determine the best way to either destroy or deflect an incoming space rock.
"The goal is to study the effectiveness of using a nuclear explosive to alter the orbit, or destroy, a potentially harmful object," said Robert Weaver in a report for the American Geophysical Union.

The study follows on from the recent realization that even relatively small asteroids can still have a devastating effect on our planet, especially if one happens to hit a major metropolitan area.

"Because we don't know where or when the next major impact will occur, the only thing preventing a catastrophe from a 'city-killer' sized asteroid has been blind luck," said former astronaut Ed Lu.

Source: IB Times | Comments (52)




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Comment icon #43 Posted by third_eye 10 years ago
I am not really clear on what you are trying to say here ? I just tried to answer your qustion in post #39. And answer you did ... quite commendably I might add ... the thing is , its only the 'big boom' that is the only thing we are certain of , all other principles are not so assured ~ in other words I agreeing with your post #40 ~ my 'like' quota was plagued with error status saving ... sorry
Comment icon #44 Posted by Noteverythingisaconspiracy 10 years ago
I see what you mean now. There are indeed many variables involved. Especially since this is something that has never been done before. Contrary to what people might think, the effect of a nuclear detonation in space is much less than in an athmosphere, because most of the blast from a nuclear device is from radiation heating the air, which is of course notably absent in space ! So even something as large as the Tsar Bomba might not be enough.
Comment icon #45 Posted by third_eye 10 years ago
I see what you mean now. There are indeed many variables involved. Especially since this is something that has never been done before. Contrary to what people might think, the effect of a nuclear detonation in space is much less than in an athmosphere, because most of the blast from a nuclear device is from radiation heating the air, which is of course notably absent in space ! So even something as large as the Tsar Bomba might not be enough. The thing is it doesn't take that big a sucker to cause catastrophic damage ~ and those tiny ones by contrast are almost impossible to 'see' till its far... [More]
Comment icon #46 Posted by skookum 10 years ago
The thing is it doesn't take that big a sucker to cause catastrophic damage ~ and those tiny ones by contrast are almost impossible to 'see' till its far too close to really do anything about it ~ ~ edit : page break ~ But aren't we talking about an Extinction level asteroid. Blowing it up (if possible) may have many unknown variables and risks. But faced with certain annihilation surely it would be worth the risk.
Comment icon #47 Posted by third_eye 10 years ago
But aren't we talking about an Extinction level asteroid. Blowing it up (if possible) may have many unknown variables and risks. But faced with certain annihilation surely it would be worth the risk. Ahhh ... here is my point ~ risk ... the calculated risk Based with entirely unknown variables ... what dictates the calculated risks ? ~ ~
Comment icon #48 Posted by Buzz_Light_Year 10 years ago
This really isn't anything new as back in 1967 MIT had Project Icarus. http://www.wired.com/2012/03/mit-saves-the-world-project-icarus-1967/ The 1979 movie Meteor was based on MIT Project Icarus.
Comment icon #49 Posted by third_eye 10 years ago
It seems its more of movie science than anything else, to me at least ... as reality, not the least in fact
Comment icon #50 Posted by badeskov 10 years ago
It seems its more of movie science than anything else, to me at least ... as reality, not the least in fact It is pretty solid in theory, but could we do it in time if we discovered an object heading our way? Who knows. We (we as in Earthlings) could probably mount a crash program to make it work and send a couple of nukes to the object on our path to nudge it a bit and make it miss us. Cheers, Badeskov
Comment icon #51 Posted by bison 10 years ago
Its seems that one of the key factors would be getting the nuke close enough to an asteroid to deliver the maximum nudge possible, but not so close as to break it apart. A good knowledge of the bulk composition, structure and cohesiveness of the asteroid would be very helpful here. We'd be better off if there were time to send a probe to a threatening asteroid, in order to learn these things. Perhaps a probe and diverting nukes could be sent as part of the same mission. The probe, a lander, with the nukes standing off. The range at which they were to be detonated to be determined by the data f... [More]
Comment icon #52 Posted by badeskov 10 years ago
Its seems that one of the key factors would be getting the nuke close enough to an asteroid to deliver the maximum nudge possible, but not so close as to break it apart. A good knowledge of the bulk composition, structure and cohesiveness of the asteroid would be very helpful here. We'd be better off if there were time to send a probe to a threatening asteroid, in order to learn these things. Perhaps a probe and diverting nukes could be sent as part of the same mission. The probe, a lander, with the nukes standing off. The range at which they were to be detonated to be determined by the data f... [More]


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