Question:

Is it magnetic in space?

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Is it magnetic in space?

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  1. the space itself isn't magnetic but magnetism isn't nullified.  


  2. Magnetism works the same way in space as on Earth.  There are still north and south magnetic poles as this is a fundamental property of electro-magnetism.  The Earth's own magnetic field extends far out into space and deflects much of the Sun's radiation.

  3. Yes Virginia, there is an interstellar magnetic field.

    Turns out that when oblong  dust grains are aligned by some mechanism, such as a magnetic field, light passing through them will preferentially have one polarization state scattered out of the direct path.

    The galactic magnetic field can also be measured by the polarization 21cm radiation emitted by hydrogen molecules.

    A galactic magnetic field was presumed to exist prior to any definitive empirical evidence (see the 1948 Spitzer article below.  Yes, this is the same Spitzer NASA's IR telescope is named for.)

    Within a year or two the correlation between polarization and the amount of reddening of other stars (the amount of dust they were shining through) was being used to deduce the strength of the galactic magnetic field.


  4. Light is both waves and particles, additionally they are referenced as electromagnetic.  So the answer is yes, but I then ask what is faster electrical fields or light and if it is light then how is it that it bends...

  5. If you are asking if there are magnetic fields in space, not in the way that there is a magnetic field on Earth, that is, there is no "North" or "South Magnetic Pole".  

    But no doubt magnetic fields from planets and stars extend vast distances out into space, becoming weaker of course over distance.

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