Last Day of Terrestrial Humans 183
A reader writes: "According to Christian Science Monitor, tomorrow humans will begin their permanent lives off of earth. Starting with the Expedition 1 launch in Kazakhstan at 7:53 GMT, Oct. 31, NASA plans to always have a human on the ISS, which has a projected mission life of 10 to 25 years. So, it is quite possible, that for the rest of history, there will always be humans who are not living on earth. See this ISS Homepage for more information on the mission."
Hmmm... (Score:1)
Almost happened years ago (Score:1)
Good (Score:1)
We really need to keep people off planet, especially if we plan on ever creating any form of long range travel, or permanent bases/stations on other stellar bodies.
We really still do not fully grasp the adverse effects prolonged exposure to a lowered gravity environment poses on the human body.
I also would think it just means that I'm just one step closer to being able to go in the garage, hop into my little shuttle and take off to catch lunch on Mars.
Old news (Score:5)
Dude, passage of laws like the DMCA indicate that there is already a measurable segment of humanity who aren't living on this planet.
-Rob
Not Terribly Exciting (Score:2)
Keep them in space the full 25 years without returning until the span is over and plant video cameras everywhere to record the decaying of their skeletal and muscular structures and put them on the web and television in a Big-Brother-esque series so we can watch them slip into dementia and you've got something most intriquing.
Throw in hot space-space chicks and you can sell pay-per-view on the Spice channel... Then you've most certainly got something...
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seumas.com
Odd headline... (Score:1)
The last time I looked around, there were still plenty of people here on Earth. But then again, it is unreasonable to expect any kind of news medium to put forth sensible headlines. After all, they just want attention.
Evan
as if (Score:2)
Yeah, ok. Let me understand this... so, people living on MIR and spacelab don't count, right? I think I missed the memo.
So what! There have been a few days over time when we haven't had people living in space. No big deal. It's not like this whole "living in space" concept is a sort of revelation! We're pretty much used to humans living in space... it's not like I'll ever live there. So, what does tomorrow really mean to me?
--cr@ckwhore
Not likely (Score:4)
Whether it is because of a technical failure that causes evacuation, funding crisis that leaves it unmanned for a time, or political upheaval that removes support, the odds are highly in favor of there being a time with no humans in space within the next 20 years.
What will change this is when life in space is self-sustaining. Then it will no longer be subject to terrestrial issues.
More impressive and meaningful... (Score:3)
2000 International Space Station Status Report #44 (Score:2)
(reprinted without permission from the mailing list. subscription and other info at bottom.)
Ahem... (Score:1)
For further proof, Slashdot has kindly presented the story on Nader further down the main page...
I hope the space fungus doesn't get 'em (Score:2)
Remember what happened to Mir and the Space Fungus?
I wonder if they will post a doctor on ISS. It would be a bummer to get a heartattack 20 miles above the closest hospital...
Governing (Score:1)
This is old hat... (Score:1)
If the real GWB was still here running for President, this race would be a cakewalk--Gore would have had it wrapped up months ago.
Coming out of the closet? (Score:1)
Sorry to nitpick (Score:1)
"tomorrow humans will begin their permanent lives off of earth."?
Re:Well I'll be (Score:1)
seemed relevant.....it may happen!
Sorry to nitpick (oops should have hit preview) (Score:1)
"today humans will begin their permanent lives off of earth."?
I did it too.
Re:Not likely (Score:2)
-- Don't you hate it when people comment on other people's
I can suggest a few people. . . (Score:5)
Well, we'd probably have a permanent station on Mars in a year if Al Sharpton would volunteer to go and not come back.
Seriously, this really could be the dawn of a new era. I've always considered the most noticable thing about humanity is our pure, unadulterated wanderlust.
We were hardly up on our hind feet before we started spreading all over the globe. Long before history began we had spread to the far corners of the globe.
Think about that. Not modern man, but man three feet tall with only the tools that he could fashion with his bare hands simply wandered into nearly every corner of globe. Just when, and HOW, did man first reach Australia?
We travel. Tourism is a major activity. We build bypasses so people at point A can get to point B, and vice versa, for no real reason. We go places for no more reason than " we havn't been THERE before."
When a cat gets bored it takes a nap. When a person gets bored * it paces. * It goes for a walk, it * goes SOMEWHERE.*
UP is the only place left to go, and it's about time we got down to it. Not for science, not for population pressure relief, not to 'save the whales', not for financial gain, but because we are human, and that's what humans DO!
Are the oceans the final frontier (Score:1)
Re:Good (Score:1)
Very likely (Score:1)
Meow.
(Hoping to be the first cat on Mars...)
Re:More impressive and meaningful... (Score:1)
On the flipside... (Score:3)
With the number of missions needed to put the station together, and the unprecedented EVA time needed, it's just a matter of time before there's a serious accident up there.
With all the trips, the odds of breaking a seal and suffocating, or a pressurised tank exploding, or some other major system failure.
And once it's all running, there's always the chance of sudden illness popping up amongst the station's crew (despite the medical checks, there's always the one-in-a-million chance), and it becoming fatal before medical help can be reached.
I thought I'd seen an article on the risks somewhere before... Google popped this one [exn.ca] up, which seems similar enough to what I remember. According to a study, the odds are at least one astronaut will die in the next 15 years.
Anyone else think this was a armagedion story? (Score:1)
when I first read the story I thought it was anouther wacko perdicting Jesus is coming.
Fortunatly I realized in time so that I'm not the one doing the obligatory "This is not news for nerds" post.
Re:I can suggest a few people. . . (Score:1)
Cd
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Last Day of Terrestrial Humans (GASP!) (Score:2)
"Last Day of Exclusively Terrestrial Humans"?
Or is there a big asteroid I just don't know about?
Dead humans living in outer space (Score:1)
Re:as if (Score:1)
Though that, in itself, should be a cautionary tale as I'm sure the Soviets thought exactly the same thing when they launched it.
But really, these guys aren't "living" in space any more than Scott, Amudson and co. were "living" in Antarctica. Living somewhere implies that the place is your home, not just someplace you are visiting for a while. Lots of people will visit space in the ISS but no one will live there. In other words, until someone brings the spouse and kids, it ain't news.
Re:Are the oceans the final frontier (Score:1)
And one question for you, colonization of the atmosphere - aren't we living amongst the atmosphere right now? I think you were implying upper atmosphere or atleast the very high mountain type living - and although admirable to attain life there, wouldn't it be easier to sink than to float?
Think of the possibilities... (Score:1)
Not there yet (Score:1)
1) A person goes into space with no plans to return to Earth. In other words, they have moved.
2) A person is born in space and stays there.
Until one of these things happen we're just fooling ourselves. Next year we will be bombarded with constant reruns of 2001. I view this as a sad thing. We are not much closer to hopes of that existence than we were when the movie was made.
ARRRRRRGH (Score:1)
the "crowdedness" of Earth has nothing to do with space travel. Sorry. The shuttle costs about $10000 per pound to life something to orbit. Slash that by 10^4.... and you get $1. Such a capability is entirely beyond our means now, but assuming we can do it... if the average person weighs 100 lbs, that's a $100 person. How many people would we need to ship off someplace to reduce the overcrowding of earth? Each million people would cost 100 million dollars. How many millions would have to go?
All the math is the long way of saying that shipping people off planet will never be the solution to Eath's overcrowding...
B
the air on mars is making me high... (Score:1)
Some of the great things we could might include: Colonizing Mars and terraforming it, then building a dome of sorts on the moons of Mars and sending convicts there. Colonizing the moon and making it a staging area for deep-space manned missions and scientific research. Experimenting with mining of such planets as Jupiter for fuel (yeah it's far fetched due to all that physics stuff like gravity, but a man can dream can he?)
Anyway, We should seriously consider moving away from our eden in search of new ones to ravage and the like. plbth.
Re:Governing (Score:2)
Plenty there already (Score:1)
Gundam Wing... (Score:2)
--
Population Census (Score:2)
Earth: 6,106,142,623
Space: 3
right (Score:1)
Roy Miller
Re:Governing (Score:1)
Front row seats to the end of the earth.. (Score:1)
Real Question (Score:5)
Re:On the flipside... (Score:2)
Russian cosmonauts have died from surreptitious depressurisation of their capsule. I also think, but I'm not sure, that another cosmonaut died after his re-entry burn failed, and was unable to reenter the atmosphere, and so, stayed up until oxygen/food/power/heat ran out. Then the capsule burned up on reentry. (can't find a link for that one. .
http://www.abcnews.go.com/sections/science/Dail
Okay (Score:3)
Why tomorrow? (Score:1)
Re:Old news (Score:1)
Re:Almost happened years ago (Score:1)
Re:Good (Score:1)
Actually, there have been some "experiments" into this (unofficially, of course). There are some rumours about extracurricular activities aboard certain Russian space flights, as well as afterdark in some NASA facilities used to train astronauts for weightlessness.
Among the realizations is that sex in space is difficult. On Earth, you have gravity to keep you anchored - not so in microgravity. Given the types of movements, sex is difficult primarily because you're trying to move and hang on to your partner. One conclusion that has been drawn is that good sex in space requires three people - two people to do the wild thang, and one to help keep the other two together. It's been dubbed the Three Dolphin Method, because dolphins use the same method for procreation in the (relatively) weightless ocean.
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Re:Not Terribly Exciting (Score:1)
The success of NASA and resulting cynicism (Score:3)
Aside from the obvious and redundant cracks about various political figures (and I'm surprised no one has mentioned Gates yet), there seems to be one overriding theme to the responses... So what?
NASA should take some pride in this response. Those astronauts are undertaking a voyage as deadly as any in history, but the unmitigated success of the US Space Program has reduced public reaction to little more than a yawn.
This will probably be the prevailing opinion for a long time. "We are living on the Moon? So what? We got there a long time ago. We are living on Mars? Great, we should send George W. Bush III out there! But seriously, so what? We are already living on the moon!"
It certainly is fun to be a cynic, deriding everyone else's achievements and laughing at how witty and smart we are. Just try and remember the date when you grandchildren ask when people first started to live in space...
B
Re:On the flipside... (Score:3)
The second one did not happen.
Re:Dead humans living in outer space (Score:2)
Re:Not Terribly Exciting (Score:1)
Imagine them stepping off the shuttle and being crushed by their own weight. Their bones so fragile and weakened. Heh heh heh
Re:Dead humans living in outer space (Score:2)
I'm afraid so -- the crew of Soyuz 11 were kil led when their craft decompressed [nasa.gov] after a valve came open after un-docking from the Salyut 1 station in 1971.
/.
Re:Very likely (Score:1)
Life in space will actually be a lot better once people rid themselves of their understandable attraction to planets. The sheer efficiency of life in space, unencumbered by the demands of a grounded existance, will ultimately make it the preferred lifestyle. That's a long way off, but to say that life requires a "sphere" is simply incorrect.
Old news (Score:1)
ah, thats old news. Haven't you even been in a UFO?!
Huge overstatement (Score:1)
It would be meaningful only if ISS would be self-supporting and would not require any shipments from Earth to sustain its crew. As we all know this is not the case - in fact ISS isn't that different from MIR or Skylab - it is just bigger. In fact its significance is not as big as one could judge from all the media attention it gets.
Read Zubrin's book about his project of Mars exploration [nw.net] - that's just one example of something that would be really innovative and meaningful. There were other ideas of this kind, but none was implemented so far.
Re:Sorry to nitpick (Score:1)
I'm a 21st century digital boy.
I don't know how to read, but I got a lot of toys.
Read the article again... (Score:2)
Re:On the flipside... (Score:2)
. . . and then there were numerous other rumored deaths. . .
http://www.mcs.net/~rusaerog/dead_cosmonauts.ht
Cosmonaut Ledovsky was killed in 1957 on a suborbital space hop from the Kapustin Yar rocket base on the Volga River. [Page
163]
Cosmonaut Shiborin died the following year the same way.
Cosmonaut Mitkov lost his life on a third attempt in 1959.
An unnamed cosmonaut was trapped in space in May 1960, when his orbiting space capsule headed in the wrong direction.
In late September 1960, while Khrushchev pounded his shoe at the United Nations, another cosmonaut (sometimes identified as Pyotr
Dolgov) was killed when his rocket blew up on the launchpad.
On February 4, 1961, a mystery Soviet satellite was heard to be transmitting heartbeats, which soon stopped (some reports even
described it as a two-man capsule, and several "missing cosmonauts" were listed as Belokonev, Kachur, and Grachev).
Early in April 1961 Russian pilot Vladimir Ilyushin circled the earth three times but was badly injured on his return.
In mid-May 1961 weak calls for help were picked up in Europe, evidently from an orbiting spacecraft with two cosmonauts aboard.
On October 14, 1961, a multiman Soviet spacecraft was knocked off course by a solar flare and vanished into deep space .
Radio trackers in Italy detected a fatal space mission in November 1962, and some believe that a cosmonaut named Belokonev died at
that time.
An attempt to launch a second woman into space ended tragically on November 19, 1963.
One or more cosmonauts were killed during an unsuccessful space mission in April 1964, according to radio intercepts by Italian
shortwave listeners.
Following the Apollo 1 fire in 1967 which killed three American astronauts, U.S. intelligence sources reportedly described five fatal
Soviet spaceflights and six fatal ground accidents .
Moon walkers (Score:5)
This is a very interesting concept but . . . (Score:2)
What I am referring to in this is that until we have a good way to create artificial gravity, it is NOT in ANY human's best interest to attempt to live in space for any long periods of time.
The reason? The human structure adapts -- if a human stays a prolonged amount of time in 0G then their system will adapt to 0G as the norm: possibly making it impossible for them to return to Earth. While this is quasi-true for adults living in space for a prolonged time, I wonder what would happen for a child who was born and raised in 0G. One would think that it would be impossible and deadly to attempt to return to the high gravity of Earth.
Now that thats out of the way, who wants to volunteer to build an artificial gravity machine?
Re:Gundam Wing... (Score:2)
Wouldn't it be easier to just repeal the laws? (of course it WOULD lack those cool space battles)
You're thinking lack of g, not lack of earth. (Score:2)
Not with the muscular distrophy problems and deformed embryos, etc.
Those are effects of lack of g, not of lack of planet Earth. For those who haven't taken high school physics, g is a constant acceleration of 9.8 m/s^2 or thereabouts, which is felt by the human body as "down." It's easily to simulate g in space; simply rotate a cylindrical structure (ringworld, ds9, etc). This takes away most of the MD and [birth difference] [everything2.com] problems.
Re:Real Question (Score:2)
Re:Governing (Score:2)
Exploiting the gullibility of the moderators (Score:2)
It's probably irrelevant without resources (Score:3)
Seriously, though. I understand the fascination with space and the "final frontier" but there is NO WAY you're ever going to see those massive sci-fi dreams realized. First off, humans don't colonize worthless tracts of land. There are places in the world today almost as hospitable as Mars - deserts/Ice caps/South Pole/ that are barren of people. Why? No reason to go, and no resources to exploit when they do arrive. Why did men go to Nevada? Silver - Why did they leave - Silver is gone. They had to start casinos and tourism, otherwise the whole state would be a ghost town.
Without a resource to exploit in space, and a MASSIVE energy source capable of reproducing some of life's amenities and making interplanetary travel a bit more liveable, there's no point, no profit, and no way mankind is going to spread to Mars or space stations or any other place. The one thing they might have going for them is Zero G manufacturing, and we'll have to wait and see on that.
And god help us if we ever find a planet with anything resembling a life form. Historically, Humans react VERY BADLY to foreign organisms they've never been exposed to before. (ask the Amazonian tribes, Native Americans, Europeans ) - it'll be the Andromeda strain all over again.
Not a pessimist, just a realist. People don't colonize inhospitable environments cause they want to, they plan to get something out of it. Find a valuable mineral or resource on Mars or in space, and I promise you, private corporations will beat NASA there - but without incentives, it's almost a waste of time. Go to the Sahara or the South Pole if you want to explore.
Re:Almost happened years ago (Score:3)
#2 = impossible (Score:3)
So until we develope a working form of artificial gravity (and a more advanced diaper) there will be no children in space (hey, maybe space really does have potential as a 'vacation destination' !)
NightHawk
Tyranny =Gov. choosing how much power to give the People.
Bah, just call for the EMH! (Score:3)
Space Fungus!
"Ah! 30 CCs of Tolnaftate."
-- Give him Head? Be a Beacon?
Re:Real Answer (Score:2)
--
Mir isn't occupied now (Score:2)
As long as we can get a second station in space (orbiting, on moon/mars/other) before the ISS tanks, the point of the article is that from now on, there'll always be 1 or more human off earth.
This is a good thing. Space is vast, unoccupied, and there's nothing out there that'll care if we strip mine the asteroid belts, or dump some toxic waste into a lunar crater or the sun. Plus, it gets us out of this "all our eggs in one basket," err, in one planet, problem. It'd still be a tragedy to see global thermonuclear war, but if enough humanity is living elsewhere, life can go on.
Nathan Mates
Re:It's probably irrelevant without resources (Score:2)
The biggest thing standing in the way of cheap space exploitation is NASA. NASA needs to get out of near-Earth space. Instead they should guarantee that all future unmanned launches will be done using commercial boosters, with manned launches to follow as soon as someone builds a man-rated launch vehicle. There are at least 19 outfits [xprize.org] that would love to be in that business, but they have a hard time competing with NASA's tax-supported monopoly.
Re:Are the oceans the final frontier (Score:2)
Re:This is a very interesting concept but . . . (Score:2)
Re:#2 = impossible (Score:2)
Re:It's probably irrelevant without resources (Score:2)
Massive energy source: It's probably day out where you are. If it's not, wait a few hours. Then go outside and find the big bright spot in the sky. Don't stare at it, though.
Baloney (Score:2)
However, it's not realistic to think there will *always* now be one or more humans in orbit (or elsewhere in outer space). Maybe for the life of ISS (which may be 100 years with upgrades, etc.) but there is just no clear mandate from the public to explore space. I think it is a good thing and there are many valid reasons for doing so. I have noticed there are a *lot* of people who do not share my enthusiasm for space exploration.
If we are able to develop inexpensive launch capability to orbit before ISS' days are over then there might be some hope that man's presence in space is now permanent. Before the first flight of Columbia there was a 6-year period where no Americans had been in orbit. I know the USSR had people going up all the time, but their political situation has changed a bit since then and the resources they are able to devote to space exploration aren't what they used to be. During that 6 year drought the only people who even thought it mattered were those working on the upcoming Space Shuttle program, NASA employees or space enthusiasts. There weren't many.
Re:It's probably irrelevant without resources (Score:2)
Silver gone, but look at Nevada now. Not exactly dead. Yes, you say, that is because the allowed gambling. Exactly, they capitalized on the only thing they had, being remote and inhospitable, and therefore away of ordinary social norms. Sounds like Mars to me :-)
I bet one of the first off-terra businesses will be wither a bank or some sort of service provider. If the porn industry don't get there first...
Re:#2 = impossible (Score:2)
If you're being sarcastic, you're remarkably subtle for Slashdot. Last I checked, ropes and a rocket to start the spin were pretty much known technologies . . .
CSM credibility impugned? sheesh (Score:2)
Re:It's probably irrelevant without resources (Score:2)
Peter F Hamilton suggests in his Night's Dawn series of SF novels that Tritium mining from the gas giants would be a major driver once we have fusion technology working.
Consciousness is not what it thinks it is
Thought exists only as an abstraction
Responsibility. (Score:2)
Humans do a lot of things they shouldn't necessarily do. No, space exploration is not something comparable to war and bigotry, but we have to consider the implications of space exploration, and what its benefits and drawbacks are. We are evolved enough not to use the general behaviour of our species as an excuse.
In my mind, space exploration would serve little practical benefit. There are still so many issues we have to resolve here on earth--starvation, disease, overpopulation, pollution, war, oppression, hatred, etc--that space exploration is negative, not just because of the money and effort that could be spent elsewhere but because many people view it as a way to "escape" our problems. Leaving earth is not a way to escape our problems; they will only come back to haunt us later.
As a software engineer, I have a natural drive to want to refine systems and make them clean and efficient. So I think the idea of an Earth with a constant population of, say, 4 billion, very little disease, very little violence, no pollution, and running on 100% sustainable resources, is very compelling. It's more compelling to me to perfect what we do here on earth than to spread our very problematic and messy behaviours elsewhere.
Yes, space travel is intriguing, because we do all have an instinct to explore and expand. But many people also have instincts to kill, maim, and rape--just because they are instincts doesn't mean they are good.
Re:Don't jump the gun, err, socket (Score:3)
That's just what Microsoft wants you to think.
Re:You're thinking lack of g, not lack of earth. (Score:2)
Running anti-spinward will cause you to lose weight and running spinward will cause you to gain weight.
Coriolis forces will cause everything to want to spin in the diredtion of the ships rotation (I think).
Things will fall in curves, etc...
Re:Moon walkers (Score:3)
Fun sports (Score:2)
I'm outta here! (Score:2)
Re:Not likely (Score:2)
I'm much more excited and supportive for a permanent colony on the moon instead of mars missions or silly strech records.
Re:Governing (Score:2)
I doubt space will be any different in the long run.
Don't dismiss the dark side so casually. (Score:2)
That they are instincts means precisely that they are good, as tested by the evolutionary process.
We have those instincts because we are the descendants of the most brutally successful killers and rapists. In hard times, they are often the difference between the end or continuation of a bloodline.
So I think the idea of an Earth with a constant population of, say, 4 billion, very little disease, very little violence, no pollution, and running on 100% sustainable resources, is very compelling.
The thought disgusts me. No disease, no pollution, I can live with. Those are realistic, and basically inevitable with continual technological development. But driving down the population while dramatically reducing violence could only be achieved by central mind-control, oppression beyond imagining.
You recommend a state of total stagnation, living death. You advocate turning away from growth and freedom in favour of comfort, like a child refusing to leave the nursery. Many would agree with you, and I couldn't be more appalled.
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Put it /this/ way: (Score:2)
Do you weigh every spending decision based on how many lives your dollars could save? Remember, you're killing someone every time you buy a snack. You're wiping out a village when you get a new car. So fucking what?
Do you think the poor starving guy in Africa would give a rat's ass about you if the situation was reversed? Sure, he might give lip service to the idea, like you do, but he wouldn't actually weigh your life as meaningful against his comforts or his dreams.
Don't ask what we can do for the starving people. Ask what they can do for us. If we were exploiting them, making profit from their labor, we would have a vested interest in their well-being, and they would have some leverage to make us send them the food they need. Your pity won't save them, but your greed could.
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Re:Don't dismiss the dark side so casually. (Score:2)
Yes, eliminate disease, lengthen lifespans, ensure that no child starves, let people have as many children as they wish, and population will go down. That makes perfect sense.
We do grow by growing the population, but that wasn't what I was talking about. Growth is moving beyond old boundaries, like Earth's gravity well, facing new challenges, like how to make a portable world of millions of people we can move to another star. Above all, true growth is natural. It arises from natural processes of competition and true challenges, not from a vague belief of penned cattle that something called "growth" is good.
Freedom means giving people room to develop their own culture, full of strange customs and irrational intolerances, not letting them choose between Coke and Pepsi, or Democrat and Republican. Law is culture, bias is culture. Freedom is being able to choose to have 12 children, drown the unfit ones, and beat the disobediant ones, regardless of what the Mer'cans think is the proper way to raise a child.
The resources out there have no purpose but those uses to which we put them. Besides, every expenditure of the resources we now have access to puts more resources within our reach, especially for space travel. If we meet other intelligent life, it might change the situation somewhat, but until then, reaching out for more resources is pure benefit, harming no one.
As for suffering, well, suffering is, was, and ever shall be. One must suffer to grow. Nothing worthwhile comes without pain.
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Actually, I agree. (Score:2)
In the long run, they're better off if we just leave them alone. But we won't do that, because if they develop into powerful nations that stand on their own feet, they might offer a military challenge. Manipulators such as the CIA have been knocking the little guys back on their asses for ages.
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The Soviets started permanent expeditions (Score:2)
Yes probably it is a point to say that ISS may be "more permanent" than Salyut & Mir. Maybe this time humans will never ever leave Cosmos. But it is a point of ingenuity to consider that the "big construction kit" will be a guarantee of permanence.
People say it will live for 10-15 years. I will risk 25-40 from what we saw with Mir and all these MirII, station Freedom & Co. In the next 10 years politicians will try to forget about Cosmos and get into a more mundane world. So this will well push he living span of the station.
However there is a problem. Time will go and politicians may forget Cosmos AT ALL. Like Moon exploration... Where are the Moon stations, expeditions to Mars? So it is probable that this permanent presence may last only 50 years. By then we will be all on Earth, eat BigMacs, drink Coke, speak bad english (worser than mine
same claim for Mir (Score:2)
would be permenantly inhabited. Was for many
years.
Re:It's probably irrelevant without resources (Score:2)
Nonsense. Perhaps you haven't noticed that Amazonians, Native Americans and Europeans are very, very similar biologically. That's why viruses and other pathogens can move from one to another. And yes, when that happens it's very bad if the person hasn't been exposed to it before.
Viruses can't even move between terrestrial biological kingdoms. Animal viruses can't infect plants. Plant viruses can't infect animals. Bacteriophages (viruses that infect bacteria) can't infect plants or animals. Most viruses are even more restricted than that as far as what they can infect.
Anything which evolved independently of life on earth will be far more different from earth organisms than plants are from animals. Asking whether a virus from Alpha Ceti VI can infect humans is like asking whether a computer virus can infect humans.
Re:I hope the space fungus doesn't get 'em (Score:2)
That's one of the reasons for the development of the Crew Return Vehicle (CRV), AKA "SSI lifeboat" or X-38 [friends-partners.org]. Until the CRV is operationally deployed (2003, last I heard -- but it may have slipped again), they'll use a couple of Soyuz spacecraft as lifeboats (but since they have to be refurbed after six months or so on orbit, it really makes NASA nervous -- that means a lot of Russian launches and operational expenses, and if there aren't functional, in-date lifeboats on station, the crew can't stay...).
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