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First Images of Solar System's Invisible Frontier

FiReaNGeL writes an unexpected side-effect from NASA's STEREO spacecraft has allowed scientists to see a much more well-defined picture of the boundary of our solar system. "The twin STEREO spacecraft were launched in 2006 into Earth's orbit about the sun to obtain stereo pictures of the sun's surface and to measure magnetic fields and ion fluxes associated with solar explosions. Between June and October 2007, however, the suprathermal electron sensor in the IMPACT (In-situ Measurements of Particles and CME Transients) suite of instruments on board each STEREO spacecraft detected neutral atoms originating from the same spot in the sky: the shock front and the heliosheath beyond, where the sun plunges through the interstellar medium."

13 of 112 comments (clear)

  1. Acronym in an Acronym? by RManning · · Score: 5, Funny

    IMPACT (In-situ Measurements of Particles and CME Transient)

    Dear God, an acronym inside another acronym! I think the space geeks have beat us computer geeks yet again.

    1. Re:Acronym in an Acronym? by Taibhsear · · Score: 5, Funny

      It's acronyms all the way down...

    2. Re:Acronym in an Acronym? by corbettw · · Score: 3, Funny

      And apparently XINU Is Not Unix, either.

      Of course not, Evil Galactic Overlords always use Windows.

      --
      God invented whiskey so the Irish would not rule the world.
    3. Re:Acronym in an Acronym? by GXTi · · Score: 4, Funny
      ((GNU's Not Unix) Image Manipulation Program) Tool Kit

      Can't think of something that uses GTK or I'd continue the fun!

  2. And a sign that reads... by chill · · Score: 4, Funny

    Last chance for gas, 20,000,000,000 km. We have lotto tickets and cold beer!

    --
    Learning HOW to think is more important than learning WHAT to think.
  3. Images of an invisible frontier? by DigitalReverend · · Score: 5, Funny

    Would that be like recordings of silence or the smell of nothing?

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    1. Re:Images of an invisible frontier? by neokushan · · Score: 4, Funny

      The sound of one hand clapping.

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      +1 IDisagreeSoHeMustBeATrollOrAnAstroturferOrAShill
  4. Re:Woooooosh by lazyDog86 · · Score: 3, Funny

    It, grasshopper, is the sound of one star clapping.

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    my insights may be modded Funny, but at least some of my jokes are modded Insightful
  5. Re:Hot, that's really hot! by Jerome+H · · Score: 5, Funny
    --
    int main() { while(1) fork(); }
  6. A Terry Gilliam fan writes by metamatic · · Score: 3, Funny

    "Ah, so *that's* what an invisible frontier looks like!"

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    GCHQ Quantum Insert installed. If only our tongues were made of glass, how much more careful we would be when we speak
  7. Re:Sloar system's velocity by Dunbal · · Score: 4, Funny

    I'm sure it's possible, but pointless. Decades ago, astronomers mapped proper motion and showed that all the stars were streaming away from a single point in the constellation Hercules. Presumably, that's where we're headed.

          Makes you think, doesn't it? Everyone is getting the hell out of there and we're headed straight for it. Someone ought to do something about this... :)

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  8. Math Quiz by Pedrito · · Score: 4, Funny

    TFA: The termination shock is the region of the heliosphere where the supersonic solar wind slows to subsonic speed as it merges with the interstellar medium.

    Okay boys and girls. Quick, grab your calculator and calculate the speed of sound in space...

  9. nice picture... by Ogive17 · · Score: 5, Funny

    I was expecting a picture that didn't look like something I drew today at work using MS Excel and autoshapes.

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