Parker Solar Probe: How Nasa is trying to 'touch' the Sun.

Discussion in 'Science' started by cerberus, Aug 9, 2018.

  1. cerberus

    cerberus Well-Known Member Donor

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  2. Bowerbird

    Bowerbird Well-Known Member

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  3. cerberus

    cerberus Well-Known Member Donor

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    :roflol::thumbsup:
     
  4. Nightmare515

    Nightmare515 Ragin' Cajun Staff Member Past Donor

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    NASA's PR wing likes to make catchy headlines to grab the attention of the public about their projects.

    Having read countless posts about this on other forums it's pretty clear that A LOT of people actually think NASA is trying to launch a probe to literally touch the Sun, as in like the Photosphere part lol.

    NASA is going to "touch" the Sun by having Parker do a series of flybys around 6 million km's away from the actual "Sun". Which on cosmic scales is basically like touching something.

    Unfortunately no NASA isn't going to throw the probe into the Sun and see what happens LOL. Well at least that's not the mission, they'll probably do that at the end of the mission and see how close they can get before the thing disintegrates which likely won't be much closer than they are planning on getting. The Sun is pretty hot...

    I'll admit even I said "wtf" when I first read about this project years ago. They've been using that "touch the Sun" tagline since the beginning.
     
  5. tecoyah

    tecoyah Well-Known Member

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    Cosmo, WillReadmore and Bowerbird like this.
  6. Spooky

    Spooky Well-Known Member Donor

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    It will be in an orbit 4 million miles away and there is a special heat shield designed to withstand the estimate 1500 degree temperature.

    Should be an interesting experiment and gather a lot of useful data about solar bombardment.

    It will also be the fastest manmade piece of equipment in history traveling at an estimated 430,000 mph.

    Nothing has ever gone that fast before.
     
    Last edited: Aug 16, 2018 at 2:32 PM
  7. kazenatsu

    kazenatsu Well-Known Member

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    It is actually possible to enter the sun's outer edge. The temperature may be very hot, but the gas is a low enough density that it doesn't actually contain much heat. The real issue is the intense light and thermal radiation that heat up the probe.
     
    Last edited: Aug 17, 2018 at 2:13 PM
  8. WillReadmore

    WillReadmore Well-Known Member

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    Yes, I think the next fastest man made object was the Juno probe of Jupiter that didn't go half that fast!
     
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  9. Spooky

    Spooky Well-Known Member Donor

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    Its pretty mind boggling to get an object up to that speed, I mean something solid and not like a laser or particle.

    Now compare that to the speed of light (our ultimate goal) which is around 670 million mph and you can see how far we have to go.

    Obviously our current technology will never be capable of reaching that, we need new inventions or to find some way to use natural existing things in space to push us up there.

    You aren't going to do it with a rocket.
     
  10. WillReadmore

    WillReadmore Well-Known Member

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    Physics says we aren't going to do it, period.

    Plus, even if we could go the speed of light (which we can't) it would still take an amazingly long time.

    The nearest star to the sun would take more than 4 years travel time at the speed of light - plus, it would take time to speed up and slow down. That star has no planets of interest, by the way.
     
  11. Spooky

    Spooky Well-Known Member Donor

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    Once we can break the speed of light we will be able to multiply it.

    Its only impossible because of the physics we currently understand.

    We haven't figured it out yet but we will.

    Only two things would prevent us from doing it, according to physics.

    Increasing mass with speed and time fluctuations.

    Physics doesn't say its impossible, it says we must solve those two problem before it is possible. Plenty of things can go faster than the speed of light so it is possible to attain that.

    And aliens have figured it out so there is that.
     
  12. WillReadmore

    WillReadmore Well-Known Member

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    You just named two reasons physics says we won't ever get to the speed of light! Then you suggested we will get to light speed !!??

    Sorry. Physics doesn't work that way.

    And no, there is no evidence that aliens exist, let alone that they can travel at light speed.
     
  13. Spooky

    Spooky Well-Known Member Donor

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    We haven't even begun to understand physics, I would refer you to the whole Quantum theory field.

    Its not fake you know.

    And yes, there is plenty of evidence for aliens and they got here somehow.

    Recently there were new photographs declassified after much pressure and here is one from Roswell.

    Does that look like a weather balloon to you?

    [​IMG]
     
  14. Nightmare515

    Nightmare515 Ragin' Cajun Staff Member Past Donor

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    Plenty of things like what?
     
  15. Spooky

    Spooky Well-Known Member Donor

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    First of all, anything not in a vacuum. The theory or relativity only applies to things in a vacuum.

    Figure out that problem and the universe is ours.

    The big thing moving faster than the speed of light is the expansion of the universe and this has been scientifically proven.

    If you wave a flashlight across the night sky that beam will pass the speed of light, again, proven.

    Quantum entanglement is another.

    Another way to move anything faster than light is to compress the space in front of you while increasing it behind you. Speed would be limitless at that point, unless you run into something and once again, we just haven't figured out how yet but we have proven its possible.
     
  16. tecoyah

    tecoyah Well-Known Member

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    You do not understand relativity theory....obviously.
     
  17. Nightmare515

    Nightmare515 Ragin' Cajun Staff Member Past Donor

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    Well that's sort of the problem. The Laws of Physics apply within the Universe but not TO the Universe. The Universe itself is expanding faster than the speed of light but the matter within the Universe isn't. That's why we have an observable universe and a light horizon.

    I've read plenty of theories about FTL travel as far as compressing space in front of you etc. That's how Star Trek ships work I think as well as the Alcubierre Drive. Problem with the Alcubierre Drive is that even as a theoretical propulsion system they say it requires an energy source equating to the Sun's energy output throughout it's entire life cycle to work. Even if something like that could be shown to "work", figuring out how to power it would obviously be pretty tricky.
     
  18. Spooky

    Spooky Well-Known Member Donor

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    Actually you are incorrect.

    There are stars being formed now that we will never see the light from because their light is moving faster away from us then it travels.

    As for Star Trek, you are correct, we have no way to power a drive system like that yet but we will one day. We will also figure out the other barriers with relativity and conquer it.

    Remember that everything was impossible until someone invented it.
     
  19. Spooky

    Spooky Well-Known Member Donor

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    ok, thanks for the wonderful discussion.
     
  20. WillReadmore

    WillReadmore Well-Known Member

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    [
    No, the theory of relativity applies to everything in the entire universe.

    EVERYTHING.
    Faster than light travel in frames that aren't accelerated is covered by the special theory of relativity. Expansion of space/time is covered by the general theory of relativity. It comes in two parts.
    No. That's nonsense you read somewhere. That experiment doesn't involve in anything moving from the left most point in your wave to the right most point - other than the flashlight itself.

    So, no object with mass moved faster than the speed of light in that experiment. Plus, light didn't travel faster than the speed of light, either.
    No, you are misinterpreting this, too.

    In this case, nothing of mass traveled faster than the speed of light.
    There is no idea of how space could be compressed, let alone there being such a theory.

    This is the same thing as wormholes in that it's great sci-fi, but simply doesn't exist.


    The theory of relativity is real, live scientific theory. You can't blow away something that serious by waving your flashlight.
     
    Last edited: Aug 21, 2018 at 7:37 PM

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