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[Cnet] Giant asteroid to get closer than moon - Page 4

post #31 of 110
Brittle matter whil be like smaller sized shrapnell entering atmosphere, with no guarantee that each piece will be small enough to burn up completely. Instead of 1, you now have multiple impact hazzards across a much larger area with unpredictable trajectory.

Mush matter (think dust sand) will just have a 'thud' in a small location and not blow it to pieces, not affecting the meteor at all. It'll just absorb it all.

Detonating near a 'roid is like throwing a cracker at a car and expect to change its trajectory given the huge mass and momentum of those space rocks. Besides, there's a near vacuum condition and as such pressure waves are pretty much non existent.
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post #32 of 110
Quote:
Originally Posted by MagicBox View Post
Looks like the "Just-Nook-It" brigade has arrived. Do you realize asteroids can be made up of all kinds extraterestial matter that acts differently when impacted / detonated? Nukes don't always work. Nor do bigger nukes.
It wouldn't have to blow up...just divert its course.

LOL...and so far every meteorite we have found has been made out of the same materials the earth is. Something this size would be vaporized with a small nuclear warhead even if it was made out of depleted uranium. A nuclear reaction is going to work the same here in our solar system or 1000 light years away. There are no nuke proof materials.

And how would you know that a nuke doesn't always work? That would imply that it has been done before. In theory there is no way that it could not work provided it didn't miss and the detonation happened at the moment of impact.
Edited by Vagrant Storm - 11/5/11 at 2:10pm
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post #33 of 110
Watch more Discovery Channel; the documentary explaining these finer details is a few years old already. I don't remember its title. Nuking was revisited as an option but deemed impractical and not a solution by NASA scientists.
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post #34 of 110
Quote:
Originally Posted by MagicBox View Post
Nuking was revisited as an option but deemed impractical and not a solution by NASA scientists.
Well.. Maybe they can make a big ass mass driver/rail-gun. That fires massive projectiles at gargantuan speeds. That have small nukes inside them.

When in doubt, nuke it.
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post #35 of 110
I would think the better option to be trying to get a drone ship to fly along next to it and try to move it with a number of massive rockets.

You are talking about needing to move it a slim margin if done early enough. The closer it gets, obviously the larger deviation you need to do to its trajectory,

Talking about the 2028 roid of course.
    
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post #36 of 110
Quote:
Originally Posted by Devilmaypoop View Post
Well.. Maybe they can make a big ass mass driver/rail-gun. That fires massive projectiles at gargantuan speeds. That have small nukes inside them.

When in doubt, nuke it.
This has been proven to have little effect on these items.
I watched a science channel special, and when using projectiles to move or destroy asteroids, it has very little to nil affect.

The composition of the asteroid has greater affect on the reaction than what we use to attack it.
    
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post #37 of 110
Quote:
Originally Posted by Murlocke View Post
I wonder if it was actually going to hit the earth:
- Would they tell us?
- Would they even be able to stop it?

A astroid this size would wipe out all/majority of life if I remember the research I did on this a few years back.

EDIT: I was far off.

Here's the results:
Transient Crater Diameter: 7.23 km ( = 4.49 miles )
Transient Crater Depth: 2.56 km ( = 1.59 miles )
Final Crater Diameter: 9.4 km ( = 5.84 miles )
Final Crater Depth: 581 meters ( = 1910 feet )
No. With the sheer amount of energy this thing has you'd have to be able to hit it with considerable force at an ENORMOUS distance away. It is already far too close to alter it's path, even by the tiniest bit.
post #38 of 110
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post #39 of 110
I think we should nuke it.
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