Slashdot Mirror


SpaceX Aims To Put Man On Mars In 10-20 Years

An anonymous reader writes "SpaceX hopes to put an astronaut on Mars within 10 to 20 years. From the article: '"We'll probably put a first man in space in about three years," Elon Musk told the Wall Street Journal Saturday. "We're going all the way to Mars, I think... best case 10 years, worst case 15 to 20 years."'"

20 of 271 comments (clear)

  1. So was Obama right? by wisebabo · · Score: 3, Interesting

    To put the emphasis on improving LEO access first (through better lower cost commercialized technologies) than trying to push the shuttle derived Ares program (that republicans have been trying to resurrect.)?

    If Space-X can meet its goal of $1,000/lb. to LEO (one TENTH) the cost of the space shuttle, I would think so!

    1. Re:So was Obama right? by Kjella · · Score: 2

      I must say I'm still a bit skeptical about the 10~15 year target. For orbiting Mars, sure, but to actually land on Mars?

      It will almost certainly take more than SpaceX to put men on Mars. For one SpaceX is a commercial company so someone has to pay - much like NASA is paying for ISS missions, I guess they could pay for a Mars mission. Secondly SpaceX is a rocket company, I doubt they'll develop all the other bits needed. I'm guessing this is to fire up everyone else, like "We're ready to do the rocketry... are you ready for the rest?"

      --
      Live today, because you never know what tomorrow brings
    2. Re:So was Obama right? by Americium · · Score: 2

      It was illegal for US investors to invest in Facebook. They made a shady deal with Goldman Sachs that let them go public without financial disclosure, so shady that even Goldman wouldn't let US investors invest.

    3. Re:So was Obama right? by Guspaz · · Score: 4, Interesting

      SpaceX isn't doing just the rocketry. With the Dragon capsule, they'll be able to mount manned launches entirely by themselves. It's not all that big a leap between putting a man into orbit for a few days, versus sending a man around the moon on a free-return trajectory, my understanding is that all you really need is to get a decent-sized rocket into orbit for a TLI burn, and with Falcon Heavy, they'll be able to do that. So clearly they're capable of going a bit beyond the basic rocketry themselves.

      Of course, Mars is a completely different ballgame, and I don't see SpaceX doing that by themselves. Not, at least, without massive funding from whoever wants to go there. They could probably do all the R&D in-house, but somebody else would have to pay for it.

  2. Dear Elon by BiggerIsBetter · · Score: 4, Insightful

    Thank you for having the vision, the money, and the balls to do these great things.

    Regards,
    Geeks everywhere.

    --
    Forget thrust, drag, lift and weight. Airplanes fly because of money.
  3. Nothing much new here... by taiwanjohn · · Score: 2

    While I heartily support the effort, this isn't exactly news. Musk has said similar things in the past couple of years, but this time he happens to have said it to the Wall Street Journal.

    --
    XML is like violence. If it doesn't solve your problem, you're not using enough of it. --AC
  4. Tell me when you can put a man on Mars tomorrow... by LighterShadeOfBlack · · Score: 3, Interesting

    I'm so sick of all these various companies, and government space programmes telling us what they can do in 10 or 20 years. Apparently everyone and his dog will be on Mars by then, meanwhile nobody has actually walked even on the Moon in nearly 40 years. Don't get me wrong, I'd like very much for someone to do all these things they predict, but I wish they'd just shut up and do them instead of talking about all the great things they're going to do.

    --
    Spelling mistakes, grammatical errors, and stupid comments are intentional.
  5. Re:Funding... by saider · · Score: 5, Insightful

    The previous generation of space contractors is focused around government jobs. This has created a broad patchwork of subcontractors that is organized to be in as many congressional districts as possible. All these layers create "profit stack-up" that bloats the price of a vehicle.

    SpaceX is vertically integrated, which means that they don't have to pay as many subcontractors, which drives down the price. We'll see if they can withstand the assault from the entrenched players.

    --


    Remember, You are unique...just like everyone else.
  6. Re:Plan: by peragrin · · Score: 2

    If your going to die, you might as well go out with a bang, on someone else's dime, in the most glorious fashion possible.

      Just remember lots of people will remember your name if your the first person to walk on mars, and never come home.

    --
    i thought once I was found, but it was only a dream.
  7. Re:Tell me when you can put a man on Mars tomorrow by LaissezFaire · · Score: 3, Informative
    SpaceX is building rockets, so they are doing things in line with going to Mars.

    Space programs take a quite a long time to develop. The average government satellite takes around 12-16 years from development to operation. They have to think 10-20 years out.

  8. Re:Support by cavreader · · Score: 2

    I am still waiting for the announcement "We can get someone to Mars AND bring him BACK in X number of years". I mean we could put people on the Moon everyday by strapping them on one our fairly limited rockets shot off on the right trajectory. It might take a while to get there and the landing could be a little rough but by god they would eventually get there. Of course that would leave us with the big question of What Next? I still think trying to capture a good sized asteroid and placing it in orbit so we could work at turning it into a generation ship for those who really want to get a good look at space and all it's wonders. Such a project would allow us to really get the hang of working and testing new ideas in space manufacturing and life support adaptations for low gravity environments.

  9. Helium 3 and location by mangu · · Score: 3, Insightful

    Well, is there really anything worth it in the moon?

    There's a low-gravity, no-atmosphere location from where it's possible to launch missions to anywhere in the solar system much cheaper than from the earth.

    There's local supply of building materials, ample material for shielding against radiation, and things don't need to be so flimsy and fragile as something that's built in orbit.

    Besides, there's the possibility of mining Helium 3, which has been assumed to be one of the possible means to obtain nuclear fusion power.

    I can't see what would be the reason, either technical or financial, to go to Mars before building a permanent moon base.

    1. Re:Helium 3 and location by Arlet · · Score: 2, Interesting

      There's a low-gravity, no-atmosphere location from where it's possible to launch missions to anywhere in the solar system much cheaper than from the earth.

      How many launches does it take to amortize the cost of building a rocket factory on the moon ?

    2. Re:Helium 3 and location by benjfowler · · Score: 3, Informative

      Forget Helium-3 as an energy source. We can't even build a working D-T fusion reactor yet, let alone something that can burn He3. Talk to me in fifty years, when we have DEMO built, and can demonstrate a working fusion power plant, before we even consider the idea.

      The He3 argument has been used by a lot of people as a (silly) argument for a human presence on the Moon for quite a while, and it's not a very good one. We can't burn He3 yet, it's not economical to ship (it's an isotope of helium, it takes up lots of space and is not dense at all, or would have to be expensively cryogenically cooled). It's an economic non-starter.

      There are better fuel sources on the Moon anyway. If we were to build science bases or observatories on the Moon, we would need a reliable power source to last through the two-week lunar nights. There's quite a bit of extractable thorium on the Moon, and compact molten-salt reactors like LFTR would likely do the job nicely, with far less technical risk. Not sure if studies have been done, on whether or not we can mine, refine and use thorium without it leaving the Moon, but it seems more practical than assembling a 10000 ton fusion reactor + associated plant from parts shipped from Earth.

      There ARE loads of things we could do on the Moon. Mining helium-3 isn't one of them.

    3. Re:Helium 3 and location by CrimsonAvenger · · Score: 3, Interesting

      Depends on where you want to go. If you're trying to send a probe to Jupiter, you'll need a very big railgun to get the necessary speed.

      Build a railgun that can push 20 tons to lunar escape speed (~2373 m/s).

      Then use it to launch a rocket with 4km/s deltaV in an orbit that'll pass just above the atmosphere. Burn ~3.6km/s of your deltaV as you pass Earth close.

      At that point, assuming you launched at the right time, you're outward bound for Jupiter and can expect to arrive there in about 33 months.

      There are a lot of interesting things you can do with the Earth's gravity well if you start from the moon.

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
  10. Re:Tell me when you can put a man on Mars tomorrow by LaissezFaire · · Score: 2

    We don't have the basic science for nuclear fusion, though. Mars is largely an engineering problem, not science.

  11. Re:Funding... by auric_dude · · Score: 2

    The BBC has a radio offering http://www.bbc.co.uk/iplayer/episode/b010dw0k/In_Business_Watch_This_Space/ (available for afew more days) detailing some of the businmess ideas behing Space-X and others. IMHO this is well worth a listen "America's space effort faces big upheavals as President Obama reigns in government spending and NASA is told to work in partnership with private enterprise. From the Kennedy Space Centre in Florida and the Mojave Desert, Peter Day asks what happens next on the USA's journey into space." Show the part played by both private business funding and new building methods.

  12. Some Suggestions for Elon by DanielRavenNest · · Score: 4, Interesting

    Elon is cutting the fat out of conventional rocket costs, and I applaud him for that, but that only takes the cost per kg down from it's weight in gold (for the Space Shuttle), to three times its weight in silver (for the Falcon 9). The actual energy cost of getting to orbit (8.7 kWh/kg) runs about $1/kg at typical retail electric rates. An efficient transportation system would run something like 4 times the bare energy cost, which works out to about the cost of UPS shipping or ground beef. So long as launch costs are measured in their weight in precious metals, rather than ordinary day to day items, space will be stupidly expensive and limited to a very few people. It should also be a hint you are doing it wrong if you are so far above what physics says the cost could be.

    I used to work for Boeing on launch vehicles, advanced propulsion, and the Space Station. Now that I'm retired I am writing up my ideas on a better way:
    http://lunar.tiriondesigns.co.cc/ It is a work in progress, but the key idea is that there is no magic bullet (or magic rocket) that can solve the cost problem by itself. You need to:

    * Leverage multiple good ideas to get cost savings that multiply together. Apply these ideas in several projects and systems that build on each other
    * Use less of or eliminate conventional rockets, because they are inefficient and expensive
    * Design for re-use and recycling in orbit to lower hardware and supply cost
    * Use materials and energy in space to cut down how much you need to bring from earth
    * Build infrastructure to make things cheaper over time instead of exactly as hard and expensive as the last time.

  13. "Get your ass to Mars" todo list for next 20 years by FleaPlus · · Score: 2

    That's what gives me pause... My gut reaction is to think this is too big of a job for one company, but Musk seems genuinely intent on this goal, and seems to be marking all the early steps toward that goal. (Heavy lift? Check. Man-rated? Check...) Even so, that's just a start. They're going to have to step up their current development trend by an order of magnitude, at least, in order to reach Mars, and that's a tall order for such a short timespan.

    Actually, just as a thought experiment, here's my guess at Elon Musk's to-do list for the next 10-20 years before he'll be able to start sending people (including himself) and supplies on one-way trips to Mars:

    • rocket capable of launching crew to orbit: done, already launched 2 Falcon 9 rockets
    • landing capsule: Done, with their Dragon capsule sent into orbit and brought back for water landing last year. The heat shield and parachute system are apparently have much more capability than needed for mere return from Earth orbit, although not known yet how they'd deal with Mars.
    • heavier cargo-launching rocket: Falcon Heavy currently under development with first launch in 2013
    • in-space docking/assembly: SpaceX will be gaining experiencing in some parts of this with Dragon and ISS, but will need more
    • in-space restartable propulsion stage: Raptor hydrogen/oxygen stage under development
    • propulsive landing system: under development, many shared elements with the launch abort system currently scheduled for testing in the next couple of years
    • in-space habitat: Could use a Bigelow habitat. Could also potentially bring the center stage of a Falcon Heavy all the way to orbit and convert it into a habitat. For periods of high radiation, can shelter in water-shielded area.
    • surface habitat: It seems like adapting one of Bigelow's lunar surface designs would be the best option here.

    What am I missing?

  14. Re:"Get your ass to Mars" todo list for next 20 ye by Guspaz · · Score: 2

    Dragon has all the requisite maneuvering thrusters for an active docking. The current ISS contracts are all for unmanned supply missions, so I suspect the reason they'd rather use the canadarm to dock the thing has to do with the lack of a pilot in the Dragon capsule to perform the docking; they'd rather bring it in with the arm than trust an automated docking system.