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Update on Project Prometheus

Aglassis writes "It appears that NASA is not backing down from their nuclear space initiative. Project Prometheus has recently started a new web page (under JPL) and NASA is finishing up a period of public comment (last session today). Currently Northrop Grumman is contracted to begin preliminary design of the spacecraft until 2008 for NASA (the reactor will be built by the Department of Energy's Division of Naval Reactors--the folks who control all US submarine and aircraft carrier nuclear reactors). Early specs are that it will be 60 meters long, have a 30,000 kg mass, use a 100 KW reactor using Brayton cycle gas turbines, be powered by ion thrusters with a 7000 second specific impulse, and have a science payload of 1500 kg. Early mission plans for Prometheus 1 (Jupiter Icy Moons Orbiter) indicate that the spacecraft would orbit Callisto, Ganymede, and Europa individually, and perhaps have a lifespan of about 20 years."

18 of 406 comments (clear)

  1. I saw this before by Tracccer · · Score: 2, Funny

    Thats right the Asgard, come and install their own warp engine

  2. ahhh they stabilized it by Anonymous Coward · · Score: 5, Funny

    So they finally figured out how to stabilize naquandria...

    1. Re:ahhh they stabilized it by Fadeproof69 · · Score: 4, Funny

      Bah! I, for one, welcome our new Go'auld overlords.

    2. Re:ahhh they stabilized it by PakProtector · · Score: 2, Funny

      What do you mean, 'new', human?

      --

      Edward@Tomato - /home/Edward/ man woman
      man: no entry for woman in the manual.
      "Qua!?"

    3. Re:ahhh they stabilized it by rlp · · Score: 2, Funny

      Bah! I, for one, welcome our new Go'auld overlords.

      Oh, I get it - it's a reference to that TV show - "Wormhole Xtreme".

      --
      [Insert pithy quote here]
  3. JPL by tyleroar · · Score: 5, Funny
    Project Prometheus has recently started a new web page (under JPL)

    Wow. Am I the only one that thought the JPL must be some license agreement like the GPL, and the wondered why the hell a web page needed to be released with a special license?
    Jet Propulsion Labratory
    --
    Portland, North Dakota Puppies
  4. Re:Before you ask ... by dotslashdot · · Score: 4, Funny

    Hopefully they won't mess up and forget to turn on some really important flag in the kernel, only to discover none of their software is compiled for USB.

  5. Re:Brayton cycle by John+Seminal · · Score: 3, Funny
    Interesting that they would pick a Brayton cycle power generation scheme. Since it's open-loop, that means you limit the lifetime of your vehicle to however much working mass - not reaction mass, that's probably xenon in this case - you have on board. Of course the limiting factor might in fact be reaction mass after all, in which case it actually makes sense to have an open-loop reactor and reap the benefits of a simpler system.

    Disclaimer: I am not a rocket scientist.

    I am a rocket scientist, so I can anwser your questions. The key is to find planets rich in dylithium crystals. Or we can negotitate with other civilizations.

    Seriously, with everything they will need to carry with them, I hope they find a power source that is plentiful everywhere.

    And this is another reason why I hope we start colonizing other planets, building little self containted cities with mines and data reasearch centers. What will happen when the space ship runs out of fuel around pluto and nobody is there to help? I know.... it is all science fiction anyways. But maybe if someone can dream it, someone can build it.

    --

    Rosco: "If brains were gunpowder, Enos couldn't blow his nose."

  6. Re:Oh great by John+Seminal · · Score: 1, Funny
    Not so dangerous? What exactly happens when a nuke is detonated in space? I know that there would be no pressure wave or firestorm, but there is no atmosphere or ground to absorb the radiation...

    We don't know what would happen. There is a whole cluster of scientists who believe in SuperString Theory, that we have 10 dimensions but can only percieve 3 of them. Imagine a newspaper comic strip. That character exists in the X and Y plane. What happens if you fire something in Z plane? To him something will appear and disappear quickly. Kinda like how we percieve electrons?? So say we fire off that nuke, and in reality it sends some wave we can't percieve. And that wave hits something else which causes the nuclear action to continue. The whole universe could collapse on itself.

    And in those final seconds, I can just hear Bush's voice "Trust me, I know what I'm doing".

    --

    Rosco: "If brains were gunpowder, Enos couldn't blow his nose."

  7. Isn't that quaint by chaffed · · Score: 2, Funny

    Yeah cool but please don't call till the Agamemnon is launched.

    Goofing around aside. This is cool. Dangerous but cool. Let's face it. This will be the mode of propulsion that will take spacecraft around our solar system for many years to come.

    --
    What could possibly go wrong?
  8. Re:Before you ask ... by grozzie2 · · Score: 4, Funny

    You obviously missed that chapter. The M$ software is proprietary, and will be kept here as the 'secret weapon'. When we do finally stumble on the borg (or they stumble on us), we'll seed the collective by planting Windows onto a drone. It'll only take a few days, and the entire collective will consist of millions of machines working at 2 tasks, first trying to fight off infections from other drones, and second, trying to infect other drones. The collective will grind to a halt, and humanity will prevail, until next week's episode....

  9. Prometheus, you say? by Anonymous Coward · · Score: 2, Funny

    Great. Let's just hope that the ships don't encounter the Minbari along the way ...

  10. Re:Nuclear worries by psychgeek · · Score: 2, Funny

    No one really worries that much about Nuclear technology in space. If it were NUCULAR on the other hand...... then there would be cause for concern!

  11. Re:Brayton cycle by worst_name_ever · · Score: 2, Funny

    Oh - sure. Just run the working fluid through a heat exchanger and start all over again. See, I told you I'm not a rocket scientist! Hell, I'm just glad I even remembered what a Brayton cycle engine is - thermo class was a heck of a long time ago...

    --

    In Soviet Rush, today's Tom Sawyer gets high on you.
  12. Re:Project Orion was cooler, though by argent · · Score: 2, Funny

    Yeh, Orion was the hottest thing this side of project Pluto.

  13. Re:Thank god by ramblin+billy · · Score: 2, Funny


    Uhhh...was it because they were by Madonna or as a protest of the lame outmoded audio cassette format? Inquiring minds want to know...

    billy - damn, I just got used to 8 tracks

  14. NASA must have told Bush there's oil on Titan! by mbkennel · · Score: 5, Funny

    that's right, George, there's rivers and rivers of LIQUID HYDROCARBONS down there, and America's got the mineral rights!

  15. Re:Thank god by hplasm · · Score: 1, Funny

    Aha! To Mars and the outer planets in a coal powered spaceship!!!

    --
    ...and he grinned, like a fox eating shit out of a wire brush.