  Matter in the universe has become ``dark'' or ``missing'' through
misconceptions about the fluid mechanics of gravitational structure formation.
Gravitational condensation occurs on non-acoustic density nuclei at the largest
Schwarz length scale L_{ST}, L_{SV}, L_{SM}, L_{SD} permitted by turbulence,
viscous, or magnetic forces, or by the fluid diffusivity. Non-baryonic fluids
have diffusivities larger (by factors of trillions or more) than baryonic
(ordinary) fluids, and cannot condense to nucleate baryonic galaxy formation as
is usually assumed. Baryonic fluids begin to condense in the plasma epoch at
about 13,000 years after the big bang to form proto-superclusters, and form
proto-galaxies by 300,000 years when the cooling plasma becomes neutral gas.
Condensation occurs at small planetary masses to form ``primordial fog
particles'' from nearly all of the primordial gas by the new theory, Gibson
(1996), supporting the Schild (1996) conclusion from quasar Q0957+651A,B
microlensing observations that the mass of the lens galaxy is dominated by
``rogue planets ... likely to be the missing mass''. Non-baryonic dark matter
condenses on superclusters at scale L_{SD} to form massive super-halos.
