Slashdot Mirror
China Plans Deep Impact Mission
Comatose51 writes "China is planning its own Deep Impact mission. The goal of the mission, unlike the exploratory NASA project, is to push potential life-ending comets or asteroids away from a collision course with the earth." From the article: " The third nation to launch a man into space has lofty space ambitions that include putting two astronauts into orbit this September and eventually sending up a space station and even a manned mission to the moon."
In addition to the comet mission, they are going to build their fourth space launch center , and they've also announced plans to militarize their space program.
I wonder, when they finally land someone on the moon, will they say "We came in peace for all mankind"?
New Star Trek Film Planned by Fans
All these "deep impact" projects are starting to freak me out. Does the One World Government know something we don't?
It would seem that the data gathered would be critical to any future mission to comets that intended to push a comet off course.
"Glory is fleeting, but obscurity is forever." --Napoleon Bonaparte
is to find a comet that is actually going to impact Earth...
God Fucking Damnit
Ahhh, the advantages of not having a proper modern legal system
If it was Europe trying to pull this shit, we'd have a second defendant!
The unofficial
look forward to a nation finally putting a man on the moon, instead of faking it! :)
I, for one, think they should attach a giant nose so they can smell it too.
In a vaccum, both should be equally useful.
See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
What if they don't find a US flag up there?
An estimate of the orbital delta-v for Tempel /Deep Impact suggests a velocity change of only 1 cm/hour (I can't vouch for the math). Assuming we would need to nudge a threatening body by 1/2 the diameter of the Earth (from direct hit to grazing pass-by), we would need to know to hit a Tempel 1-sized body in advance by over 73,000 years. This type of mission would work 10 years in advance for much smaller bodies (say less than 350 m in diameter). Even these estimates assume a perfect strike by the deflecting deep impactor -- a margin of error or the need to push the object several Earth-diameters further reduces the potential for this method.
Kinetic energy is not the way to go. Deep Impact delivered only about 4.5 kt of TNT. In contrast, a good sized thermonuclear weapon could deliver thousands of times that energy (even taking into account the relatively poor conversion of 100 megatons yield into delta-V).
Two wrongs don't make a right, but three lefts do.
From the blurb: From the article: "The third nation to launch a man into space has lofty space ambitions that include putting two astronauts into orbit this September and eventually sending up a space station and even a manned mission to the moon."
I'm pretty sure you mean taikonaut (unless the Chinese are really sending Americans into space...)
China's not happy since they are the fireworks experts. They don't want to be outdone.
;^)
I kid.
--- Journals are boring; Go to my web page instead
I wonder which way China will go with their visions for space.
Will they follow through and actually do what they claim.
Or will they take the US route (which we'll call "Fred") where we talk grand plans and visions...then we cut funding for other projects that are already successfully producing major scientific discovery, and finally we then cut funding even more and adapt 40 year old technology that never lived up to its original expectations in the first place. And then when it fails we propose gigantic new visions we don't intend to follow through on, so that everyone forgets about the failure of the earlier project.
I want a new quote. One that won't spill. One that don't cost too much. Or come in a pill.
"With 2B people to feed, China has much more pressing issues that saving the Earth from comets."
That's the problem, iddn't it? They can't afford to be hit by a comet, either. Well roundedness/diversity can be a good thing. Consider the USA's space program. Suppose it never happened, would the USA be the same for it? Maybe they want to cover their butts and spark a little technological innovation to boot.
"This project is a cover for military operations in space. Maybe they're researching how to divert a planetoid into the Earth, potentially more powerful than any nuclear weapon."
Err maybe. The way I see it, though, this sort of weapon has the same drawbacks as a nuclear weapon. It's not like they're going to use it against their enemies without it being traced back to them. If they managed to drop a comet on somebody, from a consequences point of view they'd be in just as much shit as they would be if they had fired a nuclear weapon. Worse, it'd take a hell of a lot longer to get the ball rolling, not to mention the dangerous consequences of a small mistake. What would stop the USA or any other government from responding with nuclear weapons if China pulled a stunt like that? Truth be told, I have trouble imagining that the impact of a comet wouldn't rock their boat, anyway. If it hit the water, for example, well just think about that. If a big enough comet hit to kick a lot of dust into the air, well they wouldn't be fond of that, either. Maybe I'm just incredibly naieve about how useful of weapon a comet diversion would be, but IMHO this theory just seems too far-fetched.
An alternative explanation is that China's vasteness makes the concept of a comet or asteroidal impact a bit scary. (At least on a statistical level.) Perhaps they're worried about their own territory. They might even be trying to improve their global image. "We're trying to save the planet here!"
Anyway, I can speculate all day about it. I'm not trying to say you're wrong. I'm just not sure I suspect you're right.
"Derp de derp."
You're not wrong about China having an ulterior military motive for their space work. A nation (even an Axis of Evil Rogue Nation) has a right to defend its interests against a perceived threat. Of course China has military uses planned for their extraterrestrial technology.
But you're completely wrong in thinking that we could say or do anything to stop China from doing anything they really want to do. Had we shown "leadership" and pushed for a ban on military uses of space, they wouldn't have listened anyway.
We will have weapons in space because we have weapons wherever we go. We are a violent, overconsumptive, power-hungry race.
Get past it. You'll sleep better.
Raise your children as if you were teaching them to raise your grandchildren, because you are.
Just imagine:
One big label on earth:
"Saved By China"
After all, nudging a comet with enough accuracy to hit a point on the earth would take unheard of mathematical precision, requiring millions of skilled... oh, wait, never mind...
--- Pork is not a verb.
That is from the CIA world fact book, admitedly the poverty line definition is probably different. But China does not suffer from mass starvation as many in the US seem to think.
India is not nearly as well off. 25% below the poverty line and only 3 Trillion in GDP. That could change rapidly however since the economy has been very much damaged by the autarky policies of previous governments that are being unwound.
Looking for an Information Security student project suggestion?
Try http://dotcrimeManifesto.com/