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Thread: What are the most common particles in 'outer space vacuum'

  1. #1 What are the most common particles in 'outer space vacuum' 
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    Hey forum!


    Which particles are the most common,or lets say the type that you could encounter(bump into) on rather consistent basis traveling a distance of one meter in outer space vacuum ?


    (i do realise the term vacuum means no matter, meaning its scarse, but there are those hydrogen particles and stuff, so i was windering if there was perhaps something else..?)

    id appreciate your input!


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    Forum Radioactive Isotope cosmictraveler's Avatar
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    Radiation, many types, they will kill humans over time.


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    Forum Professor Daecon's Avatar
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    I would expect it to be Hydrogen as it's the simplest and most abundant element in the Universe.

    I don't know if Helium or Deuterium would also be abundant (relatively speaking) though.
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    about radiation then... could it be said, that one can be nearly anywhere in space and have somewhat consistent radiation bombardment, and if so which type of rays would it be?
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    Quagma SpeedFreek's Avatar
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    Cosmic Microwave Background
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    Forum Professor astromark's Avatar
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    Big questions and complicated answers... As for free particles, Hydrogen is a clear winner. Radiations of electro magnetic nature, meaning photons visible and not, like x-ray, gamma, neutrino's, radio waves and sub atomic particles. Parts per millions and of almost nil yet still never completely void of mater and energies.
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