Slashdot Mirror
Hayabusa Probe Arrives at Destination
david.given writes "The Japanese space probe Hayabusa has just arrived at its destination, the asteroid Itokawa, and is taking pictures. The largely autonomous ion-drive powered vehicle was launched in 2003 and was supposed to have arrived last year, but a solar flare damaged the solar panels causing a reduction in power. It will study the asteroid for two months before collecting a sample from the surface and departing for Earth, which it should reach in 2007. It's a pity that NASA's asteroid rover, which Hayabusa was going to drop off, got cancelled due to budgetry constraints..."
Will it use the magical firewheel of protection, or be followed by a hazy clone of itself that mimics its actions?
/ryu hayabusa... ninja gaiden. ding.
I am scientifically inaccurate.
I am impressed by the Japanese mission:
HAYABUSA's mission: to bring back samples from an asteroid and investigate the mysteries of the birth of the solar system.
And I am sufficiently unimpressed by NASA's inability to even piggyback a rover with this. There is so much science to do that doesn't have to do with rocketry, that doesn't have to do with sending people into space, that doesn't have to do with spending billions on a boondoggle space program that is more concerned with keeping certain government vendors in the money rather than actually getting real science done.
Mars Rovers: Good NASA
Space Shuttle: Bad NASA
Hubble ST: Good NASA
ISS: NASA can't even send people up there to rendezvous
I'm sure someone will want to say "what about that big ol' comet we blasted with our satellite. Did we get any samples back? Did we get anything new except maybe a little more practice at aiming our missiles? Not really.
Hayabusa looks like it's going to be headed back to Earth with samples. Real science. I just wish it were Americans at the leading edge of scientific space exploration.
Jesus saved me from my past. He can save you as well.
..to get samples from any extra-terrestrial object, I think what is going to be most important out of this project is the ion-driven technology that propels the craft, as well as the re-entry capsule. Though it certianly might have been nice if they could have made the whole craft re-enterable; these things are far from cheap, and anything reusable goes a long way towards motivating people to supporting funding in NASA/JAXA.
Going back to school for entry-level jobs?
...did Hayabusa get his revenge?
Circumcision is child abuse.
"its name". Sorry.
Raise your children as if you were teaching them to raise your grandchildren, because you are.
"new chemical elements"
There aren't any elements left. We've filled in the chart already. Game over on that one.
There may be some compounds that we haven't seen, though.
Raise your children as if you were teaching them to raise your grandchildren, because you are.
As an aside, to Japanese spacecraft have particular trouble with solar flares? Or just horrible luck? Didn't they have a Mars probe stagger past that planet but not make orbit for about the same reasons?
Who do you get to be an expert to tell you something's not obvious? The least insightful person you can find? -J Roberts
Atoms compose elements. A material that is composed of only one type of atom is called an element. Atoms are measured by the number of protons make up their nucleus. This number is called its "atomic number". Hydrogen has 1 proton in its nucleus, Helium has 2, and the count goes up from there.
Now, we have identified all elements from 1 proton-nuclei (Hydrogen) through 112 proton-nuclei (Ununbium).
It is theoretically possible that there are other elements that exist in space that we haven't found yet. They would have to be larger than 112 protons per nucleus, though. In our surrounding vacinity, it is highly unlikely that we would find something like that.
Jesus saved me from my past. He can save you as well.
I think you are missing out the point that a lot of research is being done and money being spent on all the points you stated. I think it is shortsighted to stop all pure science just because there are problems "at home". There will always be problems "at home".
I wish humans would quit giving each other debilitating but preventable diseases. There isn't much that money can do to stop that. I'm not sure why humans should be wasting so much money curing a disease that people shouldn't be contracting.
And building infrastructures for impovershed nations, well, the problem is that impovershed nations are generally caused by not necessarily lack of money, the root of the lack of money is corrupt governments and/or lawlessness. There's little point in building necessary infrastructure if thugs are going to be allowed to remain and destroy that infrastructure.
Hayabusa includes the Minerva hopper - gravity on asteroids is so slight that you can get around on springs - no rockets or NASA rovers required. That's the key - that's why planetary exploration makes so little sense - when you can get to an asteroid and mine it - and return for a small fraction of the delta-V required to get back from the moon, or Mars.
Mostly because they are created through heavy-element fusion (Ca and U in the case of Uub) and the resulting element decays into lower-atomic number elements in microseconds.
So we would need to find some place hospitable for fusion (maybe the Sun) and full of heavy elements (maybe not the Sun).
Jesus saved me from my past. He can save you as well.
"A solar flare damaged the solar panels causing a reduction in power."
Ah, powered by irony. Those Japanese are always on the cutting edge.
TLoM: Nerds + DDR + Rednecks for the win!
By cancelling all these pork barrel projects the administration was able to give you a tax refund. I enjoyed my three hundred dollars. It paid for the gas for my huge honkin' SUV for a whole month. It would have been two months except that Dick and George's arab friends raised their prices. But at least all those refunds went to a good cause. If the democrats were still running things a lot of our disposable income would be going to cocaine farmers in South America. But we can rest assured that when the robed men that George Bush holds hands with collect our extra cash that they will do something good with it. I'll bet they have lots of charitable causes that they donate to. Yup, I hear those Saudi's give to lots of worthy organizations... So the next time you complain about not adding some expensive, experimental gadget to some japanese rocket just think for a second about where that money would come from and have a little sympathy for those poor millionaires who would have to cut back on single malt scotch and exotic asian hookers. And for what? So some scientists can drive a remote control car around on an asteroid. We don't need Science to tell us about the universe. Everything you need to know is in the GoOD Book. Want to know how the universe was created? Pick up a Bible and read. It's right there in the first chapter.
Liberals call everyone Nazis yet they are the closest thing to it.
I think it's hilarious that slashdot is on the one hand a reliable bastion of mainstream science, pro-evolution, anti-intelligent-design, etc.
While on the other hand, the readers subscribe to the most bizarre ideas. For example, the parent post (right now the only post at score +5), bemoans the dangers of Japanese space probes bringing back "other elements" from "the galaxies and universes".
But this is only scratching the surface. You only need to browse a few days to find dozens of highly-moderated posts about secret Pentagon weather-control devices, diseases caused by internet telephonty and so on.
It would be funny -- even hilarious -- except that the readers of slashdot are actually among the most well-read and technically-minded people in the world. So instead, I must say, woe to the people of Earth!
http://outpostnine.com/editorials/teacher1.html
"So anyway, the whole "black men have big dicks" stereotype stretches far and wide, even to the nation's 12 year olds. Part of why I'm here is not just to kind of sort of help teach English, but to "broaden cultural perceptions". Break stereotypes, challenge preconcieved notions, all that jazz. That's good and all, but this is one stereotype I think I'm just gonna let slide.
So anyway, I get asked "bigu dikku" A LOT. Every 2-3 days in fact, which is amazing considering I got asked this question about 2-3 times *in my entire life* in America. Locker room jokes aside. How do you answer that anyway? To a 12-15 year old? I wave them off and say "No no no." Then they say "Oh, sumaru dikku?" (trans. "Small dick?") and OF COURSE that's wrong so I have to correct them. It's just a no-win stiuation."
The latest Slashdot meme.
Actually, the probe would have been there much much sooner, but someone accidentally entered "up, up, down, down, left, right, left, right, b, a, select, start" when they should have entered "up, up, down, down, left, right, left, right, b, a, start".
It's a common mistake. It's too bad it had to happen on the controls to this thing though.
NASA has, however, licensed the control technology used on this probe. Unfortunately, they are unsure as to whether or not their current shuttle control systems have enough power to be able to take commands from the unit. Fortunately, when the engineers do something wrong, they will have the assurance of being able to grab the cord 1 foot up from the controls and smack it repeatedly into a cement basement floor with no damage.
Need Free Juniper/NetScreen Support? JuniperForum
There's lots of good reasons to study deep space objects like asteroids and comets. Some of these are purely scientific while others are far more practical. Finding the exact composition of an asteroid for instance helps tell us where in the solar system it formed. Knowing where it began existance and comparing that position to its current one gives us clues on how the solar system has evolved from its accretion disk state. Studying asteroids up close also lets us test our theories on planetary formation, if an asteroid of a particular class is expected to have a particular composition and indeed does it lends weight to that formation theory. It also provides ground truth for other forms of observation and measurement.
From a practical standpoint it is highly beneficial to know what asteroids are made out of. They're prime targets for space mining ventures at some point. Unlike materials mined from the Moon or Mars there's very little surface gravity to fight to get the material from the asteroid back to Earth. Hence it would be far easier to grab raw silicon or some such off a NEA and return it to Earth than get it off the Moon.
It also pays off to practice sending craft to rendevous with deep space objects. While current missions are exploratory, at some point they might be defensive. If we see an Earth crossing comet or asteroid in enough time there's a good chance we can alter its trajectory or outright destroy it (if its small enough) if we can successfully put spacecraft in striking distance of it. It is desirable to have a lot of people well versed in that sort of mission. It's also another area where knowing the composition of such objects is useful. Knowing what would be needed to destroy or deflect such an object is much easier when you know how it is going to behave. A rocky dense asteroid will act far differently than a loosely clumped dustball when hit with a nuclear blast.
I'm a loner Dottie, a Rebel.
Because the asteroids in our solar system are made of the same "star-stuff" that Earth is made from. In other words, the elements in our asteroids were made in the same star or stars as the elements in the Earth. So it's unlikely we'd find any elements in an asteroid that we couldn't find here on Earth. That's why.
That's one fast motorbike and a hell of a ramp.
The GPP is a troll, but not entirely wrong. We didn't really know that dark matter existed until the recent COBE microwave data confirmed that theory for odd galactic rotation speeds, and we still aren't sure what dark matter really is. Not a new "chemical element" of course, but something weirder. Who knows what else is out there (not on nearby asteroids of course, but OUT there) - all we know is what we see through telescopes from our little backwater. Heck, there might even be new chemical elements, if there really is an "island of stability" past 120 or so (though I hear that hypothesis is losing credibility these days).
Socialism: a lie told by totalitarians and believed by fools.
"The Japanese space probe Hayabusa has just arrived at its destination, the asteroid Itokawa, and is taking pictures." Will the Japanese tourist stereotypes never end?