Quote:
Originally Posted by freebeard
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They are different.
Dark matter does not react at all with normal matter, excepting gravitationally. And we only know it's there because of the way it affects the angular momentum of the matter we can observe.
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Presently, the only energy candidate, cosmologists have come up with, which could explain the missing energy in the universe is a fourth type of 'sterile' neutrino, adding to 'electron', 'tau', and 'muon.'
Most matter consists of 'space' and neutrinos pass between the atomic electron shells of normal matter.
From E= MC-squared, we know that tiny masses moving at relativistic velocities impart staggering amounts of kinetic energy. It's not improbable that 'sterile' neutrinos, which can morph from one type to another, could explain the enigmatic energy sought by theoretical theorists.