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Dennis Tito's 2018 Mars Mission To Be Manned

Last Thursday, we discussed news that millionaire Dennis Tito was planning a private mission to Mars in 2018, but details were sparse. Now, reader RocketAcademy writes that Tito has provided more information about the tip, and that he intends the mission to be manned: "Dennis Tito, the first citizen space explorer to visit the International Space Station, has created the Inspiration Mars Foundation to raise funds for an even more dramatic mission: a human flyby of the planet Mars. Tito, a former JPL rocket scientist who later founded the investment firm Wilshire Associates, proposes to send two Americans — a man and a woman — on a 501-day roundtrip mission which would launch on January 5, 2018. Technical details of the mission can be found in a feasibility analysis (PDF), which Tito is scheduled to present at the IEEE Aerospace Conference in March. Former NASA flight surgeon Dr. Jonathon Clark, who is developing innovative ways of dealing with radiation exposure during the mission, called the flight 'an Apollo 8 moment for the next generation.'"

55 of 233 comments (clear)

  1. Very VERY stupid idea... by nweaver · · Score: 4, Insightful

    Whats the point? You're shoving many extra tons (between person and life support), and you have to put it on an orbit that brings it back home, and for a payload that can do little more than look out the window and go "ohh, pretty" while being irradiated for years outside of the protection of the Earth's magnetic field.

    Even if the mission goes 100% to plan, the cancer risk alone is probably a death sentence for the two passengers.

    --
    Test your net with Netalyzr
    1. Re:Very VERY stupid idea... by fufufang · · Score: 4, Insightful

      Whats the point? You're shoving many extra tons (between person and life support), and you have to put it on an orbit that brings it back home, and for a payload that can do little more than look out the window and go "ohh, pretty" while being irradiated for years outside of the protection of the Earth's magnetic field.

      Even if the mission goes 100% to plan, the cancer risk alone is probably a death sentence for the two passengers.

      Q: "Why climb Mount Everest?"
      A: "Because it is there."

    2. Re:Very VERY stupid idea... by LongearedBat · · Score: 2

      Sure, except most people don't seem to care much for the Mars missions that curently do take place. However, sending a human there might well be enough of an "Apollo 8" moment to reignite peoples interest in going to Mars - possibly even enough to fire up another space race.

      Also, if we're ever to colonise Mars, we must start sometime to work out those logistics problems that you mentioned. So why not now?

    3. Re:Very VERY stupid idea... by SpeedBump0619 · · Score: 4, Insightful

      Yeah, you know we should have saved all the money on the whole Gemini program and Apollos 1-10 and just gone straight to the moon. This iterative approach to new discovery is for the birds.

    4. Re:Very VERY stupid idea... by sconeu · · Score: 4, Insightful

      A man's reach should exceed his grasp, or what's a heaven for?

      -- Robert Browning

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
    5. Re:Very VERY stupid idea... by flayzernax · · Score: 2

      Lol nice one, this thing probably just funded itself in the future right there. Talk about buying celebrities.

      Fuckin ex-JPL goon in first "civilian" in the employ of top secret god knows what Eisenhower alien fiasco lizard person bullshit.

      Just an Illuminati stooge I bet. Sorry big man with the bucks to make a publicity stunt out of human achievement, f your not a goon. I hope you succeed in bringing people to mars.

    6. Re:Very VERY stupid idea... by ShanghaiBill · · Score: 5, Insightful

      Q: "Why climb Mount Everest?"
      A: "Because it is there."

      That was a reason to climb the mountain, not walk around it. Landing people on Mars would enable them to do a lot of scientific exploration. A fly-by is pointless. We would learn nothing about Mars that couldn't be done with an unmanned orbiter. We would learn nothing about humans in space that we couldn't learn in Earth orbit.

    7. Re:Very VERY stupid idea... by fuzzyfuzzyfungus · · Score: 2

      Also, if we're ever to colonise Mars, we must start sometime to work out those logistics problems that you mentioned. So why not now?

      Efficiency, mostly. All medical research must eventually have human(or sometimes veterinary) application to count as useful; but humans are lousy enough research subjects(ethical whining, long lifespans, tendency to wander off and introduce uncontrolled variables, etc.) so we generally start with something simpler and cheaper, that can be run on a much vaster scale with the same money.

      In the same vein, if we were serious about confronting the challenges of building self-sustaining colony type environments, we could probably run 100 sealed-building experiments in parallel on earth(where lift costs nothing, parts can be purchased at the hardware store, and the entire team doesn't have to suffocate if the experiment fails, rather than just modifying some parameters and starting over) for the price of a single one offworld.

      Just as medicine goes to clinical trials eventually, there will be questions that can only be answered by actually putting actual people under actual conditions; but so much of the prep work is easier to do in ground experiments.

    8. Re:Very VERY stupid idea... by Jarik+C-Bol · · Score: 2

      If we're ever to colonize mars, we're going to need to find a way to restart its magnetic field. Whole process is moot without it, the magnetic field is what keeps solar wind/radiation from stripping the atmosphere off of earth, and the lack thereof is why mars atmosphere is so thin and useless.

      --
      I've decided to Diversify my Holdings. I've divided my cash between my left and right pockets, instead of all in one.
    9. Re:Very VERY stupid idea... by hawguy · · Score: 4, Informative

      Even if the mission goes 100% to plan, the cancer risk alone is probably a death sentence for the two passengers.

      It's right there in the article:

      The expected total radiation exposure is below NASA’s accepted lifetime limit for a middle-aged crew, Dr. Clark said. Clark expects that radiation exposure would result in a 3% excess cancer risk over the crew’s lifetime.

      You may dispute the numbers (but I don't see how you could, given that the details of the spacecraft aren't known), but I think many people would be willing to take that risk - smokers probably face worse cancer odds than that.

    10. Re:Very VERY stupid idea... by Electricity+Likes+Me · · Score: 2

      The moon was a 3 day voyage though, not a 500 day one. Spending 500 days and however much money just to circle mars and come back is a dangerous waste, especially if you're going to send people - who, while on a spaceship - can't do anything more then a probe could.

    11. Re:Very VERY stupid idea... by Jeremi · · Score: 2

      However, sending a human there might well be enough of an "Apollo 8" moment to reignite peoples interest in going to Mars - possibly even enough to fire up another space race.

      Contrariwise, it might well end up as more of a "Challenger disaster" moment, with all hands lost and a corresponding loss of public confidence in the feasibility of manned space exploration. But I guess that's the risk you gotta take...

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    12. Re:Very VERY stupid idea... by Anonymous Coward · · Score: 2, Informative

      They're in very risky territory. Outside the earth's magnetosphere, things are much much worse than LEO.(where pretty much every astronaut except the Apollo ones spend all their time.)

      There is a good paper on it here:
      http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070010704_2007005310.pdf

      They estimate a dose of 1.03 Sv for a 600 d mars flyby, which would be just over the lifetime limit for most space agencies.

      Also:
      http://en.wikipedia.org/wiki/Health_threat_from_cosmic_rays

      5% brain death seems like a pretty serious problem....

      I'd add that these are conservative estimates for dose. An unlucky event like a solar flare could make things much worse. A solar flare is sometimes predictable, so astronauts might be able to hide behind extra shielding(like their water supply). This would prevent acute radiation poisoning, but still substantially increase lifetime dose.

    13. Re:Very VERY stupid idea... by FatLittleMonkey · · Score: 5, Interesting

      We would learn nothing about Mars that couldn't be done with an unmanned orbiter. We would learn nothing about humans in space that we couldn't learn in Earth orbit.

      We will learn that in 2018 you can buy, privately, enough hardware to fly to Mars.

      Around the same time, there will be a company selling private space stations for less than some people spend on second homes. (Or on racing yachts. Or unstable private artificial islands.) Some billionaires gamble (ie, lose) more each year (for fun) than it will cost to orbit the moon, in a couple of years.

      Tito will spend less than one third of one year's worth of the ISS budget. Or 1/70th of the estimated development cost of the SLS. Or about the same cost as a Shuttle mission (depending on what you count.)

      To fly past Mars. Just because he feels like it.

      Double the cost of this Mars flyby and you could put human boots on Phobos. That's well within the spending power of any modest developing nation. From hardware purchased privately and available to anyone. A basic lunar base for a couple of billion. A flyby of Jupiter for $3-5b.

      The world changed, and the world's national space agencies are still playing with dead rats in the gutter pretending they have a space program.

      --
      Science is all about firing a drunk pig out of a cannon just to see what happens.
    14. Re:Very VERY stupid idea... by fufufang · · Score: 4, Insightful

      Q: "Why climb Mount Everest?"
      A: "Because it is there."

      That was a reason to climb the mountain, not walk around it. Landing people on Mars would enable them to do a lot of scientific exploration. A fly-by is pointless. We would learn nothing about Mars that couldn't be done with an unmanned orbiter. We would learn nothing about humans in space that we couldn't learn in Earth orbit.

      Well, people don't live on top of Mount Everest. They come back home. Dismissing the significance of this mission is like dismissing the significance of Apollo 8.

    15. Re:Very VERY stupid idea... by FatLittleMonkey · · Score: 4, Insightful

      and however much money

      Around a billion.

      About the same as the average cost of a Shuttle mission. 1/18th NASA's annual budget. 1/3rd of what they spend on ISS every year. Slightly more than 1/3rd of what they spend each year developing SLS in the hope that they will, perhaps, be able to fly a crew of 4 around the moon and back in 2021 after 15+ years of development.

      --
      Science is all about firing a drunk pig out of a cannon just to see what happens.
    16. Re:Very VERY stupid idea... by camperdave · · Score: 3, Informative

      Science : almost nil for the cost/fail

      On the contrary. There will be a lot of science done. It will be in the realm of long duration space travel and its affects on humans, rather than on gathering data on Mars, but there is plenty of opportunity for science on such a mission.

      --
      When our name is on the back of your car, we're behind you all the way!
    17. Re:Very VERY stupid idea... by Dutchmaan · · Score: 4, Insightful

      "Around a billion." I'll believe that when I see it...

    18. Re:Very VERY stupid idea... by gsslay · · Score: 2

      We would learn nothing about Mars that couldn't be done with an unmanned orbiter. We would learn nothing about humans in space that we couldn't learn in Earth orbit.

      So I guess humanity should just stop doing stuff that we already think we know the answers to. You have absolutely no idea what might be learned, and nor does anyone else until it's tried.

    19. Re:Very VERY stupid idea... by gsslay · · Score: 4, Insightful

      Excellent policy. But why start with space exploration? Space exploration has some very useful applications for now and our future. Let's ban the spending of millions on films, tv, sports, music, entertainment, vacations, celebrations, art, fancy food and alcohol. All this non-essential crap that waste the Earth's resources and could be better spent on new energy technologies, food production and clean water preservation.

      Sure, life would be dull and joyless. But I guess that's the price you pay when you get to ban use of resources on things you don't like.

    20. Re:Very VERY stupid idea... by Rogerborg · · Score: 2

      What's the point?

      Not because it is easy, but because it is hard.

      Also, we might find out how is space babby formed.

      --
      If you were blocking sigs, you wouldn't have to read this.
    21. Re:Very VERY stupid idea... by taylorius · · Score: 5, Insightful

      The mission isn't supposed to find out anything new about Mars. It's about the problems associated with the trip itself. That's enough to be going on with. After the mission, I can practically guarantee there will be a succession of scientists and engineers giving presentations, saying "It turns out that...". There's no substitute for actually doing it - and if we want to reach the stage where we're regularly sending colony ships full of people to Mars, sending the first one just to loop round is in no way "a waste".

    22. Re:Very VERY stupid idea... by Ambiguous+Coward · · Score: 2

      You're right, we shouldn't give a shit about anything until it's already said and done.

      --
      Their may be a grammatical error, misspeling, or evn a typo in this post.
    23. Re:Very VERY stupid idea... by kryliss · · Score: 2

      We choose to go to the moon. We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.

      - JFK

      --
      --- If the bible proves the existence of God, then Superman comics prove the existence of Superman.
    24. Re:Very VERY stupid idea... by GodfatherofSoul · · Score: 2

      I got slapped in a bar for that once.

      --
      I swear to God...I swear to God! That is NOT how you treat your human!
    25. Re:Very VERY stupid idea... by Farmer+Pete · · Score: 2

      Did you just say that alcohol was non-essential? What the hell?

    26. Re:Very VERY stupid idea... by FatLittleMonkey · · Score: 2

      The point of Tito's plan, the reason it sneaks under the line of possible, is because the 2018 window allows him to lift enough mass on a single launch for a free-return flyby around Mars. One launch of, say, the Falcon Heavy is being listed at $125m, but call it $150m by 2018.

      The same mission profile would get you a Venus flyby mission, and probably a number of possible asteroid targets. But outside of the 2018 window, you will not get to Mars in one launch.

      Likewise, to go into Mars orbit would mean two launches, maybe three, because you need enough fuel to enter and leave Mars orbit (plus extra hardware if you want to land on Phobos/Deimos.) If you want to land on Mars, you are going up another order of magnitude. Your mission profile means a dozen launches, plus entirely custom hardware. It's a classic NASA proposal.

      But if Tito can pull off the flyby, it demonstrates that any nation can order this hardware off the shelf. If the flyby costs Tito $1b, a Phobos mission might cost only $2-3b. That's what NASA spends in a year on the ISS. Orbiting the moon (Apollo 8) would be vastly easier than Tito's Mars flyby, a $150m FH launch and a relatively unmodified Dragon-crew capsule. You wouldn't even need the inflatable module or extra life-support. $250m per flight, well within the affordability of a small nation. A private moon landing would probably be close to the $1b (for the extra hardware), still within range and ambitions of a third of the developing countries on Earth. And what Tito does is show them that they can. They don't need to wait for NASA or ESA or Ruscosmos, they can take the lead.

      --
      Science is all about firing a drunk pig out of a cannon just to see what happens.
  2. Pissed by anagama · · Score: 3, Insightful

    Stories like this sort of pisses me off. There are a lot cool things we could be doing if, as a nation, America used it's wealth for good instead of evil. But we'd rather spend trillions enriching the very few via wars/police state crap to prevent fewer deaths than dog bites cause (*), or on bailouts for the very rich and unscrupulous. What a fucking waste.

    * http://thinkprogress.org/security/2011/08/25/304113/chart-only-15-americans-died-from-terrorism-last-year-less-than-from-dog-bites-or-lightning-strikes/?mobile=nc

    --
    What changed under Obama? Nothing Good
    1. Re: Pissed by Radres · · Score: 4, Insightful

      I think if you re-read his post you'll find he's actually on your side, numbskull.

    2. Re:Pissed by Jeremi · · Score: 2

      But we'd rather spend trillions enriching the very few via wars/police state crap to prevent fewer deaths than dog bites cause (*)

      If only 15 Americans died from terrorism last year, doesn't that mean the prevention is working? ;^)

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    3. Re:Pissed by IndustrialComplex · · Score: 2

      I'm sorry but I don't see how you can possibly make that statement given that Breivik was from Norway. Don't they 'heavily invest in public schools and social security' there?

      --
      Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
  3. What would be great by fustakrakich · · Score: 5, Funny

    The ship comes back with an extra passenger or two..

    --
    “He’s not deformed, he’s just drunk!”
    1. Re:What would be great by 0dugo0 · · Score: 2

      Don't let the breastapo hear this. The breast milk mafia has enough political clout to ban spaceflight with an insufficient stock of breasts.

    2. Re:What would be great by timeOday · · Score: 2

      Um, how much do you know about the female body?

  4. Crash and colonise by MichaelSmith · · Score: 2

    Landing and living on Mars might actually be safer than a cruise back to Earth and a 10g landing, after two years of microgravity. A better idea would be to send older people, land them on Mars and schedule resupply missions.

    1. Re:Crash and colonise by MichaelSmith · · Score: 4, Interesting

      I envisage landing at the Hallas low point, for the highest temperatures and highest atmospheric pressure. The crew would dig or drill for water and use photovoltic power to extract oxygen from the water. They may also use oxygen and hydrogen in fuel cells for energy storage. They would land with two years of food, but they would have an inflatible habitat which could be used to grow some food as well.

      One concern is the life of their pressure suits. Lunar fines are very abrasive and Apollo surface suits had a short working life. Martian fines may cause similar problems.

    2. Re:Crash and colonise by Panoramix · · Score: 2

      I think the point is, if you're going to put people on a rocket and shoot them to Mars, in the understanding that, no matter what happens, they're going to die there, won't ever see Earth again, it might just be easier to find takers, and generally to sell this idea to the public, if you aim for 60+ aged who already lived their lives here.

      I know people that age who are still in great shape, and maybe some would be willing to set off for one last adventure. Who knows. Tough one, that.

    3. Re:Crash and colonise by catchblue22 · · Score: 4, Informative

      One concern is the life of their pressure suits. Lunar fines are very abrasive and Apollo surface suits had a short working life. Martian fines may cause similar problems.

      I don't think the fine particles on Mars will for the most part resemble those on the Moon. Mars has had wind blowing the particles around for a very long time, smoothing out the rough corners on the particles. The Moon clearly has no wind. The particles on the Moon likely formed via meteorite impact ejecta, either from shattered rock or by condensation from vaporized rock. After formation, there would likely be less corner erosion of fine particles due to the lack of wind. Thus the Moon's fine particles are quite abrasive.

      --
      This and no other is the root from which a tyrant springs; when first he appears as a protector - Plato (423 to 327 BC)
    4. Re:Crash and colonise by Electricity+Likes+Me · · Score: 2

      We haven't really had that much trouble with the rovers though, and they get covered in dust. They've all well outlived their operational lifespan.

    5. Re:Crash and colonise by tftp · · Score: 2

      Yes, but if the whole point is to learn how to keep people alive up there

      There is very little to learn. We already had ground simulations of the flight, and they were generally unsatisfactory. Humans cannot sit in a tin can for two years and retain sanity. That alone overwhelms all the other issues, of which there are many. The best solution for keeping humans alive during the flight to Mars is to make the flight short - say, a day, or two. Until that happens nobody in his right mind should spend years of his life being a lab rat.

      A robot can do planting of the flag just fine, if that's the only reason to send a meatbag up there. There will be no public interest in this event anyway, even if your spacefarers survive the year of confinement and recycled water/food and don't kill each other. Man and a woman - strong emotions swing both ways; as they say, "Heaven has no rage, like love to hatred turned." But OK, let's say those travellers warily emerged from the lander and made a few shaky steps (even in the lower gravity of Mars.) What next? Do they just hammer a flag into the ground and leave? Do they, in the great numbers of two, start to study the whole planet? No, of course not. They aren't even going to land, per Tito's scenario, and there will be nothing to show, nothing to celebrate. The spam in the can may just as well never leave Earth.

      I'm far from being against spaceflight. But you need to be always reasonable and sane. It just doesn't make any sense to send people for that long and that far. They are likely to die, and there is nothing to be gained from this flight. The money should be instead invested into making more efficient vehicles that can, as matter of fact, traverse the distance much faster and thus make access to Mars far more realistic. Nuclear power? Perhaps, if that works. New physics? Always welcome. But sending people on this voyage is just as practical as crossing the Atlantic on a reed raft. Is it possible? Yes, if the stars are in a favorable position (literally, in case of Mars.) But is a reed raft, or a torora boat like Ra II, a viable transport between the Old and the New worlds? Not in a thousand years. You need something that gives you a half-decent chance of getting there alive, and doesn't take forever. Trips of Thor Heyerdahl took about 3 months each, sometimes with stops at various ports. Those trips were done on Earth, where the air is free and the ocean full of fish is a foot away.

      So, Mr. Tito, if your money burns through your pocket, take it and build a space elevator. That would be a worthy endeavor. Once that is in place we can start thinking about building larger ships, nuclear-powered, that take water as reaction mass and can travel to the Moon, to Mars, or to the Belt within reasonable time. That's the way to go.

    6. Re:Crash and colonise by hawguy · · Score: 3, Informative

      There is very little to learn. We already had ground simulations of the flight, and they were generally unsatisfactory. Humans cannot sit in a tin can for two years and retain sanity. That alone overwhelms all the other issues, of which there are many

      Russia, the EU and China conducted a joint simulation with mission lengths of 15, 105 and 520 day durations. After the 520 day mission:

      http://en.wikipedia.org/wiki/MARS-500#Experiment_stages

      The 520-day final stage of the experiment, which was intended to simulate a full-length manned mission, began in 3 June 2010 and ended on 4 November 2011.[8][9][10] This stage was conducted by a six-man international crew, consisting of three Russians, a Frenchman, an Italian/ Colombian and a Chinese citizen.[10] The stage included a simulation of a manned Mars landing, with three simulated Mars-walks carried out on 14, 18 and 22February 2011.[11][12] The experiment ended on 4 November 2011, with all the participants reportedly in optimal physical and psychological condition.[10]

      In January 2013, the Proceedings of the National Academy of Sciences reported that four of the six crew members had considerable problems sleeping, and some avoided exercise and would hide away from the others, in behaviour compared to animal hibernation.[13]

      Insomnia and exercise avoidance doesn't sound all that unsatisfactory. Though I don't think it's possible to truly simulate a mission to Mars here on Earth when the participants know that if things go very bad, they are just an escape hatch away from help. I think the only way to do a true simulation would be if the participants really thought that they were in a space capsule, which is pretty hard to do when gravity gives it away.

      They had 6000 volunteers for the long mission - I suspect that an actual mission to mars will result in many more volunteers, despite the risks.

    7. Re:Crash and colonise by Panoramix · · Score: 2

      Um. Alright. I wasn't really commenting on Tito's plan, but rather on MichaelSmith's notion of a one-way trip, at the start of this thread (which, btw, has been proposed, seriously). But sure, let's get serious if you want.

      I do see a point in sending meatbags to Mars. Not for the sake of a flyby, or that joke about the flag, but ultimately to attempt to live in Mars for extended periods of time. Staying in Mars, in some sort of habitat, establish a permanent presence in another planet. I think achieving this should be considered a more pressing issue than it actually seems to be. I'll come back to this in a minute. But a flyby may be useful, to assess what exactly it takes to get there.

      First though, I'm not sure you've got your numbers right. Valeri Polyakov stayed 14 months aboard that tin can, Mir. Sergei Krikalev (who's spent 800+ days in space) stayed 10 months while the USSR dissolved. Aleksandr Kaleri has spent almost as long - he was in the ISS couple years ago (and the man is 56 btw). And so on. Now of course there have been side effects, both physiological and psychological, but, to my knowledge none incapacitating, and none permanente in the long-term. So I'm not quite sure, when you say "Humans cannot sit in a tin can for two years and retain sanity", what are you basing this opinion on? I'm not an expert, but given these numbers, well. To me, it sounds very hard alright, but not impossible, or even unrealistic.

      You also said, "We already had ground simulations of the flight, and they were generally unsatisfactory". Could you elaborate? I only know of Mars-500, an experiment conducted by a few years ago where they isolated a crew to simulate a trip to Mars. I recall they all completed the experiment, no one went bonkers aboard and started killing the others, really. I seem to recall there were issues concerning lack of sleep, which of course is serious and needs addressing. It may be part of the reason why ISS astronauts take sleeping pills now. In any case, experiments like Mars-500, valuable as they are, can't simulate microgravity or what I think will be the worst issue, radiation. So I do see a point in those lab rats in a tin can, harsh as the whole notion is.

      I hear you on that part about research, that's always a necessity. But I don't think there's a reason why it must be one or the other, we could have a manned mission *and* research into new technologies. Thing is, and again I may be misinformed, but I don't think we're even close to develop technology that could cut the flight time substantially. I mean, we don't even have the science, the theoretical groundwork, on which to base such a technology. Travel to Mars in a day or two, you say? Come on, man, get real. That's going to take a very, very long time to achieve, and I don't think we should wait that long.

      The reason why I see this is a pressing matter is: I think it's paramount for us, as a species, to hedge our bets, as it were. To make living in another planet, if not economical or practical, at least feasible. Because we don't know when the next Chixculub rock is going to hit, we don't know when we'll face a pandemic that wipes life on Earth, it can happen any time. And I think it would be immensely valuable to know that such a scenario wouldn't necessarily mean the extinction of the species.

    8. Re:Crash and colonise by tftp · · Score: 2

      I wasn't really commenting on Tito's plan, but rather on MichaelSmith's notion of a one-way trip, at the start of this thread (which, btw, has been proposed, seriously)

      I remember seeing that, but that is even more ridiculous :-)

      So I'm not quite sure, when you say "Humans cannot sit in a tin can for two years and retain sanity", what are you basing this opinion on?

      Mir and ISS operators were always, at all times, 1 hour away from Earth. They could always jump into Soyuz, press a button and within an hour or two, depending on the rotation of Earth, they'd be on terra firma. Cosmonauts were trained to do basic medical procedures, but if any of them gets ill or injured they would leave the station and go to Earth. This is not going to happen during the Mars trip. If a spacefarer needs a complex surgery, his buddies are the best approximation of a surgeon. Their surgical experience? Maybe 30 minutes, trying to cut up a dog and then put it back together.

      Yet another factor is boredom. Space station is naturally a busy place, with many experiments going on, with many observations to make, with many pieces of machinery needing alignment or repair. Guest expeditions would be coming and going; cargo ships would be arriving and making you unload tons of junk, and then to load the vacant space with tons of other junk that you are done with. Fresh food would be shipped to them at every opportunity; their families would be on the video and audio link every week or however often they wanted, and there is no communication delay. In other words, the station crew felt needed, and they were needed. They were worked hard by the Mission Control for their own good.

      Most of that will not be available on a year-long trip to Mars. There will be no guests or ships coming or going. The communication will be delayed to the point of being hard to talk:

      At the perihelion opposition, at 56 millions km from the Earth, a distance as short as 0.37 AU (1 AU = 149.56x108 km), it takes 3 minutes and 7 seconds for a signal emitted by the DSN to reach Mars. But when Earth and Mars are the farthest apart at 2.52 AU, it takes 20 minutes and 57 seconds to transmit the same radio signal.

      I presume you won't fly when Earth and Mars are the farthest apart, but even 3 minutes will surely throw a monkey wrench into your chat. You'd be better off just sticking to email.

      The travellers will not have much of science to do on the way. They cannot do better than automated scientific instruments; those do not get tired, they don't forget, and they have sharper eyes than any human. The humans themselves would be the only experiment, actually.

      There will be a considerable fear of a failure of the life support system. Such things are possible, and accidents of that sort did happen on space stations in LEO. But there, as I said, you can always escape. There is no escape from the Mars spaceship. Apollo 13 got into a similar predicament, and they barely survived - even though the Moon is nearby. If a similar accident happens on a Mars trip, those guys and gals are just as good as dead. The accident can occur not just because the machinery fails but also because of a meteor damage, or of radiation damage, or just because something randomly failed. A motor burns up that pumps sewage, and the motor is not accessible from the inside, and the ship is too small to allow an airlock. What do you do now? You depend on that sewage for your water, and there is no other way to process it. This fear will wear people down. None of that fear was present in the ground simulation. How well will you sleep on an old, rusty World War II bomb that can go off at any time?

      So I do see a point in those lab rats in a tin can, harsh as the whole notion is.

      Very well. Get a few monkeys and send them up to Mars. See how your automated ship works, and how their life support system operates. Monkeys can't repair it? Excellent; the test is eve

  5. Re:There will be problems... by Frosty+Piss · · Score: 2

    sorry to burst your cum-bubble, but jizz and vag spoo and sweat dries very quickly.

    Well, perhaps, but it will still be floating around unless it connects with a surface before it dries.

    And if it does dry and continue to float about, will that be a respiratory issue?

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  6. Re:There will be problems... by fuzzyfuzzyfungus · · Score: 5, Interesting

    sorry to burst your cum-bubble, but jizz and vag spoo and sweat dries very quickly. The answer to your bukkake question is that it will be possible at a somewhat greater distance than on earth. the only thing left for you to fantasize about it how the place will *smell* after the mission is done. I find it ridiculous that they talk of sending a middle aged couple because of radiation concerns regarding sperm and egg, plenty of young couple opt to be made sterile by one means or another, tubal ligation or vasectomy or whatever. deep space porn rights could help offset cost of mission.....

    Control of biological...undesireables... is actually a bit tricky in space. Lots of problems that just solve themselves when you have an entire planetary atmosphere to work with just don't when you have a few thousands or tens of thousands of liters of atmosphere along with whatever climate control you packed with it.

    Both Mir and the ISS developed moderately nasty mold problems, and Mir even had a number of horrid water globules hiding behind rarely used access panels growing various vile slime.

    It isn't obvious that sexual fluids would be worse than mere sweat(might actually be less troublesome, since there is a strong evolutionary imperative in favor of mechanisms that keep other microorganisms from hijacking our gene transfer mechanism for their own ends); but we know that mere sweat and exhaled water vapor are enough to really gross up the place.

  7. Apollo 8 Moment by R3d+M3rcury · · Score: 2

    The problem is that Earthrise is going to be kinda lame.

  8. Re:I think I must have missed something by Tim+the+Gecko · · Score: 2

    "Sort of cool, but..." sums it up. A moon landing mission launched 440 days after Apollo 8 splashed down, and there was hardly a great deal of media interest in Apollo 13 until the explosion. So a trip of 501 days could be a bit longer than our collective attention span.

    Also Apollo 8 was part of a series of missions culminating in a moon landing less than a year later. And it wasn't competing with awesome robots wandering around and sending color pictures from the surface as the tourists whizzed past.

  9. Re:There will be problems... by hawguy · · Score: 2

    The sleeping quarters are going to look like a Jackson Pollock under the blue lights! Seriously, how do you cum on someone's face in zero G? If I'm doing it "doggy" and pull out right before I fire my huge load like a rocket, will the force blow me into the wall and hurt my back? And I mean, seriously, unless there is some kind of environment vacuum system to suck all the cum and sweat and other liquids out of the room space, by a few months into this thing, the whole place will be filled with free-floating globs of cum and pussy juice. On second thought, I'M IN!

    I don't know if you've spent much time with a girl, but after a few weeks of constant contact with no breaks and no showers, there's not going to be a whole lot of sex going on.

  10. Re:There will be problems... by Frosty+Piss · · Score: 2

    I don't know if you've spent much time with a girl, but after a few weeks of constant contact with no breaks and no showers, there's not going to be a whole lot of sex going on.

    On the contrary, it will me like rutting animals. There will be nothing else to do. In fact they should take the Kama Sutra and a video camera, and sell the rights to Vivid Entertainment... And of course they will have to sign up a couple who are HOT looking and so forth...

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  11. Re:I think I must have missed something by dbIII · · Score: 2

    I think the idea is to do only one incredibly hard thing at a time until you get it right. I hope I dumbed it down enough.

  12. Re:Build an automated city first by hawguy · · Score: 2

    Build an automated city on Mars first. A habitat is needed so that people can land there and have something waiting. It would be even better if the automated city were busy harvesting water and splitting it into H2 and O2 for the return trip.

    Before you do any of that, get international agreement that contamination of Mars is acceptable. Once humans land there, it's inevitable.

    An "Apollo 8" for Mars just seems like a really bad idea.

    Who's willing to pay for it? This guy is willing to fund a non-stop trip to mars and back, sounds like he just wants to see some man (and woman) reach mars before he dies.

    If you want to fund an automated city on Mars, go for it - build a compelling case and shop the idea around to some billionaires and see if you can get it funded. That's probably easier than getting politicians to give NASA enough funds to do it.... or worse, trying to build an international coalition of national space agencies to do it.

    IMHO, the tech for exploring Mars has to come from the mining industry. Yes. Mining. Start with ultra-automated mines on Earth. Then, Mars-adapt that technology and send it there. Ditto for construction. Come on miner/builder-bots guys, build us some Mars bots and get 'em on the job.

    I don't know if you've seen earthbound ultra-automated mining but it's typically built of very heavy steel, not something you can easily get to Mars until asteroid mining is available (and this research is in-progress). Mines on earth of more interested in replacing human labor with machines so use big machines to process large quantities of materials.

  13. Re:Bah, Robomakerbots instead. by tftp · · Score: 2

    How about instead of people, we send a few robots and some self-contained factories with which to build more.

    Do that here, on Earth, first. It would be even easier, given that we know a lot about this planet. Make a robot that, once dropped off in, say, Himalayas, will do whatever is necessary to assemble another one. When that happens we will discuss flying such a robot to Mars.

    IMO, it would be a challenge to even find one human - or one group of humans - who'd be able to pull that off. Many alternative history books were written where such scenarios are proposed, studied - and rejected as improbable. The threshold of building a factory that makes semiconductors is absurdly high. One robot, or one human, will not be able to do it. You have to bring up the whole technological civilization to just produce all the chemicals that go into manufacturing of semiconductors. A robot will need a few thousand years to spiral it up, starting with stone tools and likely having to invent unique technologies on the spot as it discovers new minerals and new environmental conditions.

  14. Maybe a Venus flyby is easier by wisebabo · · Score: 4, Interesting

    Have they done a similar study for a Venus flyby? The launch dates might be more forgiving, the target a bit closer, the trip length might be a shorter and the delta-V requirements a bit less. Most important maybe the earth re-entry requirements would be a little less extreme. It is a 14km/sec aero-capture maneuver prior to re-entry that would, in some scenarios, put the vehicle in an elliptical, battery power only, 10-day trajectory beyond the moon (not to mention abusing the heat shield TWICE) just to reduce G-forces!. And there's only a 6km entry "window" between burn-up and bouncing off the atmosphere on an escape trajectory!

    I mean since this trip is mainly a (very useful) test of long duration deep space flight with very limited "observation" of an already well-studied planet (there are currently three orbiters and two rovers on Mars), does it really matter which planet we flyby? Since the trajectory for this mission already takes it inward almost to Venus' orbit, they will be exposed to the same levels of solar heat (and radiation). Mars is, of course, more relevant for future long term exploration but other than the P.R. value there is not much more that would be gained over going to it versus Venus.

    On the other hand, if somebody forks up the money for this tomorrow, please ignore everything I said. Mars or bust!

  15. Re:There will be problems... by bkmoore · · Score: 2

    you mean they're sending Silvio Berlusconi up there?

  16. Re:Send a GAY couple (not a troll!) by Gavagai80 · · Score: 2

    Why not just send one person? You only have to take half the food, your tiny space is less cramped, and the mental pressures of being isolated can't be worse than those of being stuck in a tiny room with someone for two years.

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