Anonymous
Anonymous asked in Science & MathematicsAstronomy & Space · 4 months ago

Is space mostly made up of hydrogen and helium?

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  • 4 months ago
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    Others are mostly right. Dark matter might be even more. Neutrinos, photons, Higgs bosons, electrons, cosmic ray particles, methane, water, oxygen, nitrogen, a few other elements are numerous, but less than the first three in total mass. Not sure if there are any loose quarks, gravitons, chronotons, as those are not proved to exist (yet).

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  • 4 months ago

    It really depends mainly on what you mean by "made up of".

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  • John P
    Lv 7
    4 months ago

    Note that, whatever the composition of space, the concentration of any gases and minerals etc is extremely low in space.

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  • 4 months ago

    Others are mostly right. Dark matter might be even more. Neutrinos, photons, Higgs bosons, electrons, cosmic ray particles, methane, water, oxygen, nitrogen, a few other elements are numerous, but less than the first three in total mass. Not sure if there are 

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  • Who
    Lv 7
    4 months ago

    nope - most of it is empty

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  • no, it's mostly urine. and sperm.

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  • Clive
    Lv 7
    4 months ago

    No. It's space.

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  • 4 months ago

    Well, there is plenty of it out there along with other elements and matter. Consider just a hand full of mols per cubic decimeter, may well be considered void.

    Rather thick with sub atomic particles in the form of energy across the EM spectrum, background radiation, photons of light and such

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  • 4 months ago

    Atomically yes

    In like 1 Atom per Square Metre

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  • marty
    Lv 7
    4 months ago

    Hydrogen in space is normally atomic hydrogen. That's what interstellar and intergalactic space are mostly made of (besides empty space). Or actually ~75% hydrogen, ~25% helium, ~1% cosmic dust, and ~1% volatiles (various gases and ices).

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