Currently: Dark matter has been postulated to explain "anomal" orbital velocities of stars in galaxies. It is postulated that dark matter exists in a halo around galaxies and thus forms the correct mass which leads to the nearly constant orbital velocities.
The only relevant omnipresent particles in space are neutrinos.
Neutrinos are the only particles which meet the requirement to exist everywhere in universe:
All Rights: Dr. O. Vogel / Unabhängige Forschungsgemeinschaft UFG/ Germany
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